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62 results on '"3-Pentanol"'

1. Experimental and kinetic modeling study of the low- temperature and high-pressure combustion chemistry of straight chain pentanol isomers: 1-, 2- and 3-Pentanol.

Author

Chatterjee, Tanusree, Saggese, Chiara, Dong, Shijun, Patel, Vaibhav, Lockwood, Katherine S., Curran, Henry J., Labbe, Nicole J., Wagnon, Scott W., and Pitz, William J.

Abstract

Pentanols have received significant attention as a potential alternative fuel or fuel additive owing to their high energy densities and low vapor pressure. The development of robust chemical kinetic models for alternative fuels which can provide accurate and efficient predictions of combustion performance across a wide range of engine relevant conditions is important in developing cleaner, more efficient combustors. Although the high temperature oxidation kinetics of pentanol isomers has been researched considerably, their low temperature combustion chemistry needs further investigation. While previously proposed low temperature mechanisms for 1-pentanol based on analogy and rate rules need further refinement, the low temperature oxidation kinetics of 2-pentanol and 3-pentanol has not been studied previously by any means, experimentally or theoretically. A newly developed kinetic mechanism is presented in this work for the three straight chain pentanol isomers: 1-, 2- and 3-pentanol. Low temperature kinetics is based on a recent study by Lockwood et al., 2022 [20] involving theoretical calculations at the CCSD(T)/cc-pV∞Z level of theory for the oxidation pathways involving alcohol peroxy radicals. Rate of production analyses performed in this study highlight the importance of the newly added pressure-dependent reactions of the α-alcohol peroxy radical forming an RȮ 2 adduct. While the α-alcohol fuel radical reacts with O 2 to directly decompose via a chemically activated pathway at low pressures, the formation of the RȮ 2 adduct is favored at high pressures. The detailed model is comprehensively validated against new ignition experiments at low temperature and high pressure, together with the wide range of data available in the literature. Both qualitative and quantitative predictions of the experimental data using the proposed kinetic model are satisfactory for all three pentanol isomers studied here. [ABSTRACT FROM AUTHOR]

Published
2023
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2. An experimental and modeling study of the oxidation of 3-pentanol at high pressure.

Author

Carbonnier, Maxime, Serinyel, Zeynep, Kéromnès, Alan, Dayma, Guillaume, Lefort, Benoîte, Le Moyne, Luis, and Dagaut, Philippe

Abstract

Abstract High pressure oxidation of 3-pentanol is investigated in a jet-stirred reactor and in a shock tube. Experiments in the reactor were carried out at 10 atm, between 730 and 1180 K, for equivalence ratios of 0.35, 0.5, 1, 2, 4 and 1000 ppm fuel, at a constant residence time of 0.7 s. Reactant, product and intermediate species mole fractions were recorded using Fourier transform infrared spectroscopy (FTIR) and gas chromatography (GC). Ignition delay times were measured for 3-pentanol/O 2 mixtures in argon in a shock tube at 20 and 40 bar, in a temperature range of 1000–1470 K and for equivalence ratios of 0.5, 1 and 2. The fuel did not show any low-temperature reactivity under these conditions in neither experimental set-up and produced various aldehydes and ketones as well as the olefin 2-pentene as intermediates. A kinetic sub-mechanism is developed in order to represent the present data and analyze the reaction pathways. [ABSTRACT FROM AUTHOR]

Published
2019
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3. 3-Pentanol glycosides from root nodules of the actinorhizal plant Alnus cremastogyne.

Author

Xu, Yingting, Xu, Yingchao, Huang, Zhengwan, Luo, Yucai, Gao, Ruanling, Xue, Jinghua, Lin, Changli, Pawlowski, Katharina, Zhou, Zhongyu, and Wei, Xiaoyi

Subjects
*ROOT-tubercles, *ALDER, *CITRULLINE, *DICARBOXYLIC acids, *GLYCOSIDES, *PLANT roots, *CARBON metabolism
Abstract

Alnus cremastogyne Burkill (Betulaceae), an actinorhizal plant, can enter a mutualistic symbiosis with Frankia species that leads to the formation of nitrogen fixing root nodules. Some primary metabolites (carbohydrates, dicarboxylic acids, amino acids, citrulline and amides) involved in carbon and nitrogen metabolism in actinorhizal nodules have been identified, while specialized metabolites in A. cremastogyne root nodules are yet to be characterized. In this study, we isolated and identified three undescribed 3-pentanol glycosides, i.e., 3-pentyl α - l -arabinofuranosyl-(1′′→6′)- β - d -glucopyranoside, 3-pentyl α - l -rhamnopyranosyl-(1′′→6′)- β - d -glucopyranoside, and 3-pentyl 6′-(3-hydroxy3-methylglutaryl)- β - d -glucopyranoside, as well as seventeen known compounds from A. cremastogyne root nodules. 3-Pentanol glycosides are abundantly distributed in root nodules, while they are distributed in stems, roots, leaves and fruits at low/zero levels. A. cremastogyne plants treated by root nodule suspension emit 3-pentanol. This study enriches the knowledge about specialized metabolites in the actinorhizal host, and provides preliminarily information on the signal exchange in the actinorhizal symbiosis between A. cremastogyne and Frankia. [Display omitted] • Three undescribed 3-pentanol glycosides were isolated and identified from the root nodules of A. cremastogyne. • 3-Pentanol glycosides were discovered in natural occurrence for the first time. • A. cremastogyne plants treated by root nodules suspension emit 3-pentanol. [ABSTRACT FROM AUTHOR]

Published
2023
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4. Gaseous 3-pentanol primes plant immunity against a bacterial speck pathogen, Pseudomonas syringae pv. tomato via salicylic acid and jasmonic acid-dependent signaling pathways in Arabidopsis

Author

Geun Cheol eSong, Hye Kyung eChoi, and Choong-Min eRyu

Subjects
Arabidopsis, induced resistance, Volatile organic compound, 3-Pentanol, bacterial speck pathogen, Plant culture, SB1-1110
Abstract

3-Pentanol is an active organic compound produced by plants and is a component of emitted insect sex pheromones. A previous study reported that drench application of 3-pentanol elicited plant immunity against microbial pathogens and an insect pest in crop plants. Here, we evaluated whether 3-pentanol and the derivatives 1-pentanol and 2-pentanol induced plant systemic resistance using the in vitro I-plate system. Exposure of Arabidopsis seedlings to 10 M and 100 nM 3-pentanol evaporate elicited an immune response to Pseudomonas syringae pv. tomato DC3000. We performed quantitative real-time PCR to investigate the 3-pentanol-mediated Arabidopsis immune responses by determining Pathogenesis-Related (PR) gene expression levels associated with defense signaling through SA, JA, and ethylene signaling pathways. The results show that exposure to 3-pentanol and subsequent pathogen challenge upregulated PDF1.2 and PR1 expression. Selected Arabidopsis mutants confirmed that the 3-pentanol-mediated immune response involved salicylic acid (SA) and jasmonic acid (JA) signaling pathways and the NPR1 gene. Taken together, this study indicates that gaseous 3-pentanol triggers induced resistance in Arabidopsis by priming SA and JA signaling pathways. To our knowledge, this is the first report that a volatile compound of an insect sex pheromone triggers plant systemic resistance against a bacterial pathogen.

Published
2015
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5. An experimental and modeling study of the oxidation of 3-pentanol at high pressure

Author

Philippe Dagaut, Guillaume Dayma, Maxime Carbonnier, Luis Le Moyne, Zeynep Serinyel, Alan Keromnes, Benoîte Lefort, Institut de Combustion, Aérothermique, Réactivité et Environnement (ICARE), Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut des Sciences de l'Ingénierie et des Systèmes (INSIS), Département de Recherche en Ingéniérie des Véhicules pour l'Environnement (DRIVE), Université de Bourgogne (UB), Bourgogne council under the PARI2 program (No. 2016-9201AAO048S01891), and ANR-11-LABX-0006,CAPRYSSES,Cinétique chimique et Aérothermodynamique pour des Propulsions et des Systèmes Energétiques Propres(2011)

Subjects
Jet-stirred reactor, Materials science, 020209 energy, General Chemical Engineering, Analytical chemistry, chemistry.chemical_element, 02 engineering and technology, Mole fraction, 7. Clean energy, law.invention, 020401 chemical engineering, Kinetics modeling, law, ignition, 0202 electrical engineering, electronic engineering, information engineering, 0204 chemical engineering, Physical and Theoretical Chemistry, Fourier transform infrared spectroscopy, Shock tube, Olefin fiber, Argon, [SPI.FLUID]Engineering Sciences [physics]/Reactive fluid environment, Mechanical Engineering, 3-pentanol, Atmospheric temperature range, Ignition system, chemistry, Gas chromatography
Abstract

International audience; High pressure oxidation of 3-pentanol is investigated in a jet-stirred reactor and in a shock tube. Experiments in the reactor were carried out at 10 atm, between 730 and 1180 K, for equivalence ratios of 0.35, 0.5, 1, 2, 4 and 1000 ppm fuel, at a constant residence time of 0.7 s. Reactant, product and intermediate species mole fractions were recorded using Fourier transform infrared spectroscopy (FTIR) and gas chromatography (GC). Ignition delay times were measured for 3-pentanol/O2 mixtures in argon in a shock tube at 20 and 40 bar, in a temperature range of 1000–1470 K and for equivalence ratios of 0.5, 1 and 2. The fuel did not show any low-temperature reactivity under these conditions in neither experimental set-up and produced various aldehydes and ketones as well as the olefin 2-pentene as intermediates. A kinetic sub-mechanism is developed in order to represent the present data and analyze the reaction pathways.

Published
2019

6. Field Evaluation of the Bacterial Volatile Derivative 3-Pentanol in Priming for Induced Resistance in Pepper.

Author

Choi, Hye, Song, Geun, Yi, Hwe-Su, and Ryu, Choong-Min

Subjects
*PLANT defenses, *PENTANOL, *PEPPERS, *HERBIVORES, *VOLATILE organic compounds, *PATHOGENIC microorganisms, *BACILLUS amyloliquefaciens, *PLANT colonization
Abstract

Plants are defended from attack by emission of volatile organic compounds (VOCs) that can act directly against pathogens and herbivores or indirectly by recruiting natural enemies of herbivores. However, microbial VOC have been less investigated as potential triggers of plant systemic defense responses against pathogens in the field. Bacillus amyloliquefaciens strain IN937a, a plant growth-promoting rhizobacterium that colonizes plant tissues, stimulates induced systemic resistance (ISR) via its emission of VOCs. We investigated the ISR capacity of VOCs and derivatives collected from strain IN937a against bacterial spot disease caused by Xanthomonas axonopodis pv. vesicatoria in pepper. Of 15 bacterial VOCs and their derivatives, 3-pentanol, which is a C8 amyl alcohol reported to be a component of sex pheromones in insects, was selected for further investigation. Pathogens were infiltrated into pepper leaves 10, 20, 30, and 40 days after treatment and transplantation to the field. Disease severity was assessed 7 days after transplantation. Treatment with 3-pentanol significantly reduced disease severity caused by X. axonopodis and naturally occurring Cucumber mosaic virus in field trials over 2 years. We used quantitative real-time polymerase chain analysis to examine Pathogenesis- Related genes associated with salicylic acid (SA), jasmonic acid (JA), and ethylene defense signaling. The expression of Capsicum annuum Pathogenesis- Related protein 1 ( CaPR1), CaPR2, and Ca protease inhibitor2 ( CaPIN2) increased in field-grown pepper plants treated with 3-pentanol. Taken together, our results show that 3-pentanol triggers induced resistance by priming SA and JA signaling in pepper under field conditions. [ABSTRACT FROM AUTHOR]

Published
2014
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7. Ternary and constituent binary excess molar enthalpies of {1,2-dichloropropane + 2-pentanol + 3-pentanol} at T=298.15K.

Author

Kim, Moon-Gab

Abstract

Excess molar enthalpies for the ternary system of {1,2-dichloropropane (1,2-DCP)+2-pentanol+3-pentanol} and their constituent binary mixtures {1,2-DCP+2-pentanol}, {1,2-DCP+3-pentanol}, and {2-pentanol+3-pentanol} have been measured over the whole range of composition using an isothermal micro-calorimeter with flow-mixing cell at T=298.15 K and atmospheric pressure. The experimental excess molar enthalpies of all the binaries and ternary mixture, including three pseudo-binary mixtures, are positive (endothermic effect) throughout the mole fraction range, except for the binary mixture {2-pentanol+3-pentanol} in which shows a small negative values over the entire composition range. The experimental binary H data were fitted to Redlich-Kister equation, and the Cibulka and the Morris equations were employed to correlate the ternary H data. Several empirical equations for predicting ternary excess enthalpies from constituent binary mixing data have been also examined and compared. The experimental results have been qualitatively discussed in terms of molecular interactions. [ABSTRACT FROM AUTHOR]

Published
2014
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8. Effect of release rate and enantiomeric composition on response to pheromones of Megaplatypus mutatus (Chapuis) in poplar plantations of Argentina and Italy.

Author

Funes, Hernán, Zerba, Eduardo, and Gonzalez-Audino, Paola

Subjects
*INSECT pheromones, *PLATYPUS, *POPLARS, *AMBROSIA beetles, *ENANTIOMERS
Abstract

Megaplatypus mutatus (=Platypus sulcatus Chapuis) is an Ambrosia beetle native to South America, which was recently introduced in Italy and its presence there is causing severe damage to the local poplar plantations. The male M. mutatus pheromone is composed of (S)-(+)-6-methyl-5-hepten-2-ol [(+)-sulcatol], 6-methyl-5-hepten-2-one (sulcatone) and 3-pentanol. A series of field trials testing dose, blend and enantiomer composition performed in Argentina and Italy evaluated attraction and found that the optimal release rate of pheromone components as baits in cross vane baited traps (CIPEIN-CV) was 6, 6 and 30 mg day−1 of sulcatone, (+)-sulcatol and 3-pentanol, respectively. It was also determined that racemic sulcatol is as effective as the pure (+)-isomer for the purpose of beetle catch, due to the inert nature of the (−)-isomer allowing the usage of low cost racemic sulcatol instead of highly expensive (+)-sulcatol. The results of our work contribute to the development of pheromone-based local technologies with low environmental impact and low cost for control or monitoring of an important pest. [ABSTRACT FROM PUBLISHER]

Published
2013
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9. Mating disruption of the ambrosia beetle Megaplatypus mutatus in poplar and hazelnut plantations using reservoir systems for pheromones.

Author

Funes, Hernán, Griffo, Raffaele, Zerba, Eduardo, and Gonzalez-Audino, Paola

Subjects
*ANIMAL sexual behavior, *AMBROSIA beetles, *PHEROMONES, *INSECT flight, *FRUIT trees, BEETLE behavior
Abstract

Megaplatypus mutatus (Chapuis) (Coleoptera: Curculionidae: Platypodinae) is an ambrosia beetle native to South America, but it has recently been introduced into Italy and represents a serious problem in commercial poplar and fruit tree plantations. Male M. mutatus emit a sex pheromone composed of (+)-6-methyl-5-hepten-2-ol [(+)-sulcatol], 6-methyl-5-hepten-2-one (sulcatone), and 3-pentanol. We performed three field trials of mating disruption of M. mutatus in hazelnut and poplar plantations in Argentina and Italy. To perform these tests, we made plastic pheromone reservoir-type dispensers for sulcatol, sulcatone, and 3-pentanol with zero-order kinetics that were deployed in the field during the female flight period. The number of galleries where mating took place was significantly higher in control than in treated areas, indicating that pheromone application had interfered with female behavior and male localization. Because damage reduction was >56% in both countries, these results demonstrate the potential for the strategy of pheromone-mediated mating disruption of M. mutatus in commercial poplar and hazelnut plantations. Also, our study provides the first evidence for successful pheromone-mediated mating disruption in a forest beetle. [ABSTRACT FROM AUTHOR]

Published
2011
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10. Measurement and modeling of high-pressure (vapor+liquid) equilibria of (CO2 +alkanol) binary systems

Author

Bejarano, Arturo, Gutiérrez, Jorge E., Araus, Karina A., and de la Fuente, Juan C.

Subjects
*MATHEMATICAL models, *HIGH pressure (Science), *LIQUID-liquid equilibrium, *BINARY metallic systems, *TEMPERATURE effect, *EXPERIMENTAL design, *CARBON dioxide
Abstract

Abstract: Complementary isothermal (vapor+liquid) equilibria data are reported for the (CO2 +3-methyl-2-butanol), (CO2 +2-pentanol), and (CO2 +3-pentanol) binary systems at temperatures of (313, 323, and 333)K, and at pressure range of (2 to 11)MPa. For all (CO2 +alcohol) systems, it was visually monitored that there was no liquid immiscibility at the temperatures and pressures studied. The experimental data were correlated with the Peng–Robinson equation of state using the quadratic mixing rules of van der Waals with two adjustable parameters. The calculated (vapor+liquid) equilibria compositions were found to be in good agreement with the experimental data with deviations for the mole fractions <8% and <2% for the liquid and vapor phase, respectively. [Copyright &y& Elsevier]

Published
2011
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11. Henry’s law constants and infinite dilution activity coefficients of cis-2-butene, dimethylether, chloroethane, and 1,1-difluoroethane in methanol, 1-propanol, 2-propanol, 1-butanol, 2-butanol, isobutanol, tert-butanol, 1-pentanol, 2-pentanol, 3-pentanol, 2-methyl-1-butanol, 3-methyl-1-butanol, and 2-methyl-2-butanol

Author

Miyano, Yoshimori, Kobashi, Takahiro, Shinjo, Hiroshi, Kumada, Shinya, Watanabe, Yusuke, Niya, Wataru, and Tateishi, Yoko

Subjects
*SEPARATION of gases, *ENTHALPY, *CHEMICAL kinetics, *DILUTION
Abstract

Abstract: Henry’s law constants and infinite dilution activity coefficients of cis-2-butene, dimethylether, chloroethane, and 1,1-difluoroethane in methanol, 1-propanol, 2-propanol, 1-butanol, 2-butanol, isobutanol, tert-butanol, 1-pentanol, 2-pentanol, 3-pentanol, 2-methyl-1-butanol, 3-methyl-1-butanol, and 2-methyl-2-butanol in the temperature range of 250K to 330K were measured by a gas stripping method and partial molar excess enthalpies were calculated from the activity coefficients. A rigorous formula for evaluating the Henry’s law constants from the gas stripping measurements was used for the data reduction of these highly volatile mixtures. The uncertainty is about 2% for the Henry’s law constants and 3% for the estimated infinite dilution activity coefficients. In the evaluation of the infinite dilution activity coefficients, the nonideality of the solute such as the fugacity coefficient and Poynting correction factor cannot be neglected, especially at higher temperatures. The estimated uncertainty of the infinite dilution activity coefficients includes 1% for nonideality. [Copyright &y& Elsevier]

Published
2006
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12. Henry’s law constants and infinite dilution activity coefficients of propane, propene, butane, isobutane, 1-butene, isobutene, trans-2-butene, and 1,3-butadiene in 1-pentanol, 2-pentanol, and 3-pentanol

Author

Miyano, Yoshimori

Subjects
*HYDROCARBONS, *BUTENE, *CHEMICAL kinetics, *LIQUEFIED petroleum gas
Abstract

Abstract: Henry’s law constants and infinite dilution activity coefficients of propane, propene, butane, isobutane, 1-butene, isobutene, trans-2-butene, and 1,3-butadiene in 1-pentanol, 2-pentanol in the temperature range of (250 to 330) K and 3-pentanol in the temperature range of (260 to 330) K were measured by a gas stripping method. A rigorous formula for evaluating the Henry’s law constants from the gas stripping measurements was used for the data reduction of these highly volatile mixtures. The uncertainty is about 2% for the Henry’s law constants and 3% for the estimated infinite dilution activity coefficients. In the evaluation of the infinite dilution activity coefficients, the nonideality of the solute such as the fugacity coefficient and Pointing correction factor cannot be neglected, especially at higher temperatures. The estimated uncertainty of the infinite dilution activity coefficients includes 1% for nonideality. [Copyright &y& Elsevier]

Published
2005
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13. An experimental and modelling study of the oxidation of 3-pentanol at high pressure

Author

Carbonnier, Maxime, Serinyel, Zeynep, KEROMNES, Alan, Dayma, Guillaume, Lefort, Benoite, LE MOYNE, Luis, Dagaut, Philippe, Département de Recherche en Ingénierie des Véhicules pour l'Environnement [Nevers] (DRIVE), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université de Bourgogne (UB), Institut de Combustion, Aérothermique, Réactivité et Environnement (ICARE), Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut des Sciences de l'Ingénierie et des Systèmes (INSIS), Combustion Institute, ANR-11-LABX-0006,CAPRYSSES,Cinétique chimique et Aérothermodynamique pour des Propulsions et des Systèmes Energétiques Propres(2011), CHAUVEAU, Christian, Laboratoires d'excellence - Cinétique chimique et Aérothermodynamique pour des Propulsions et des Systèmes Energétiques Propres - - CAPRYSSES2011 - ANR-11-LABX-0006 - LABX - VALID, and Université d'Orléans (UO)

Subjects
[CHIM.THEO]Chemical Sciences/Theoretical and/or physical chemistry, Kinetics, [SPI]Engineering Sciences [physics], [CHIM.THEO] Chemical Sciences/Theoretical and/or physical chemistry, pentanol, jet-stirred reactor, [SPI.FLUID]Engineering Sciences [physics]/Reactive fluid environment, ignition, Shock tube, [SPI.FLUID] Engineering Sciences [physics]/Reactive fluid environment, 3-pentanol, kinetic modeling
Abstract

International audience; High pressure oxidation of 3-pentanol is investigated in a jet-stirred reactor and in a shock tube. Experiments in the reactor were carried out at 10 atm, between 730 and 1180 K, for equivalence ratios of 0.35, 0.5, 1, 2, 4 and 1000 ppm fuel, at a constant residence time of 0.7 s. Reactant, product and intermediate species mole fractions were recorded using Fourier transform infrared spectroscopy (FTIR) and gas chromatography (GC). Ignition delay times were measured for 3-pentanol/O2 mixtures in argon in a shock tube at 20 and 40 bar, in a temperature range of 1000–1470 K and for equivalence ratios of 0.5, 1 and 2. The fuel did not show any low-temperature reactivity under these conditions in neither experimental set-up and produced various aldehydes and ketones as well as the olefin 2-pentene as intermediates. A kinetic sub-mechanism is developed in order to represent the present data and analyze the reaction pathways.

Published
2018

14. Physicochemical Properties and Field Evaluation of Monolithic Wax Formulations for the Controlled Release of a Forest Pest Pheromone

Author

Paola A. González-Audino, Mariel Slodowicz, Cecilia Cristina Carmaran, and Esteban Daniel Ceriani-Nakamurakare

Subjects
0106 biological sciences, Forest pest, Wax, SULCATONE, 3-PENTANOL, Otras Ciencias Biológicas, MONOLITHIC DISPENSER, General Chemistry, CONTROLLED-RELEASE, 010603 evolutionary biology, 01 natural sciences, Controlled release, Ciencias Biológicas, purl.org/becyt/ford/1 [https], 010602 entomology, Horticulture, SULCATOL, visual_art, visual_art.visual_art_medium, Pheromone, Environmental science, purl.org/becyt/ford/1.6 [https], CIENCIAS NATURALES Y EXACTAS
Abstract

This work shows the way to develop a monolithic device for the release of an active agent. Different waxes to prepare monolithic dispensers were used. Studies to characterize the release rate of the pheromone dispensers, and to determine many physicochemical properties of the active components and waxes utilized as matrices, were conducted. The advantages of using monolithic devices as an insect pheromone dispenser in order to control an insect that attacks commercial poplar plantations were demonstrated. Also, the practical application employing monolithic dispensers manufactured in this paper with the sex pheromone of the ambrosia beetle Megaplatypus mutatus (Coleoptera: Platypodidae) was verified. This forest pest is known to attack tree plantations in South America. The release rates were mainly dependent of matrix hardness and viscosity, as well as the particle size of fillers. A good performance of the formulated monolithic dispensers was observed during the field trials, with a reduction of damage levels of 40%. Fil: Slodowicz, Mariel Pamela. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones Científicas y Técnicas para la Defensa. Centro de Investigación de Plagas e Insecticidas; Argentina Fil: Ceriani Nakamurakare, Esteban Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Biodiversidad y Biología Experimental; Argentina Fil: Carmaran, Cecilia Cristina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Biodiversidad y Biología Experimental; Argentina Fil: Gonzalez Audino, Paola Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones Científicas y Técnicas para la Defensa. Centro de Investigación de Plagas e Insecticidas; Argentina. Universidad Nacional de San Martín; Argentina

Published
2017

15. Traslucent pheromone traps increase trapping efficiency of ambrosia beetle Megaplatypus mutatus.

Author

González-Audino, Paola, Gatti, Pablo, and Zerba, Eduardo

Subjects
PHEROMONES, AMBROSIA beetles, INSECT traps, XYLEM, HOSTS (Biology), PLANTATIONS, MORTALITY
Abstract

Abstract: Megaplatypus mutatus (=Platypus mutatus) is an ambrosia beetle native to South America. Unlike most ambrosia beetles, it attacks only living trees, penetrating the xylem of its host by boring long tunnels. These galleries cause severe stem-breakage and mortality in commercial poplar plantations. In previous studies we showed that volatile emissions from pioneer male M. mutatus are composed of (+)-6-methyl-5-hepten-2-ol, 6-methyl-5-hepten-2-one and 3-pentanol. Recently, we developed reservoir type controlled release dispensers and tested the efficacy of various trap designs in the field. Results showed that black cross-vane traps (CIPEIN-CV) captured significantly more insects than other traps designs baited with the same dispensers. In the present study we modified the colour, the construction material and the size of traps with the aim of increasing trapping efficacy and reducing the final trap cost. The results showed that significantly more female and male M. mutatus were captured in small and large traslucent traps (CIPEIN-CVt) than in black CIPEIN-CV trap. Furthermore, traslucent CIPEIN-CVt trap costs were significantly lower than costs for CIPEIN-CV traps. Significantly improved trapping efficacy with an important decrease in final costs will allow detection of considerably lower populations of M. mutatus in monitoring programs. [Copyright &y& Elsevier]

Published
2011
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16. Effect of release rate and enantiomeric composition on response to pheromones of Megaplatypus mutatus (Chapuis) in poplar plantations of Argentina and Italy

Author

Eduardo Nicolás Zerba, Hernán Funes, and Paola Gonzalez-Audino

Subjects
Male, Trap efficiency, Pheromone, Biology, Ambrosia beetle, (+)-sulcatol, Insect Control, Pheromones, Ciencias Biológicas, chemistry.chemical_compound, Animals, 3-Pentanol, Ecology, Zoología, Ornitología, Entomología, Etología, General Medicine, 3-pentanol, biology.organism_classification, Attraction, Megaplatypus mutatus, Coleoptera, Horticulture, chemistry, Insect Science, Sex pheromone, Female, Composition (visual arts), Sulcatone, PEST analysis, Enantiomer, Agronomy and Crop Science, CIENCIAS NATURALES Y EXACTAS
Abstract

Megaplatypus mutatus (=Platypus sulcatus Chapuis) is an Ambrosia beetle native to South America, which was recently introduced in Italy and its presence there is causing severe damage to the local poplar plantations. The male M. mutatus pheromone is composed of (S)-(+)-6-methyl-5-hepten-2-ol [(+)-sulcatol], 6-methyl-5-hepten-2-one (sulcatone) and 3-pentanol. A series of field trials testing dose, blend and enantiomer composition performed in Argentina and Italy evaluated attraction and found that the optimal release rate of pheromone components as baits in cross vane baited traps (CIPEIN-CV) was 6, 6 and 30 mg day−1 of sulcatone, (+)-sulcatol and 3-pentanol, respectively. It was also determined that racemic sulcatol is as effective as the pure (+)-isomer for the purpose of beetle catch, due to the inert nature of the (−)-isomer allowing the usage of low cost racemic sulcatol instead of highly expensive (+)-sulcatol. The results of our work contribute to the development of pheromone-based local technologies with low environmental impact and low cost for control or monitoring of an important pest. Fil: Funes, Hernán Martín. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones Científicas y Técnicas para la Defensa. Centro de Investigación de Plagas e Insecticidas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Unidad de Investigación y Desarrollo Estratégico para la Defensa. Ministerio de Defensa. Unidad de Investigación y Desarrollo Estratégico para la Defensa; Argentina Fil: Zerba, Eduardo Nicolás. Universidad Nacional de San Martín; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Unidad de Investigación y Desarrollo Estratégico para la Defensa. Ministerio de Defensa. Unidad de Investigación y Desarrollo Estratégico para la Defensa; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones Científicas y Técnicas para la Defensa. Centro de Investigación de Plagas e Insecticidas; Argentina Fil: Gonzalez Audino, Paola Andrea. Universidad Nacional de San Martín; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Unidad de Investigación y Desarrollo Estratégico para la Defensa. Ministerio de Defensa. Unidad de Investigación y Desarrollo Estratégico para la Defensa; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones Científicas y Técnicas para la Defensa. Centro de Investigación de Plagas e Insecticidas; Argentina

Published
2013

17. Measurement and modeling of high-pressure (vapour+liquid) equilibria of (CO2+alcohol) binary systems

Author

Jorge E. Gutiérrez, Arturo Bejarano, and Juan C. de la Fuente

Subjects
3-Pentanol, Work (thermodynamics), Binary number, Thermodynamics, Atomic and Molecular Physics, and Optics, Physics::Fluid Dynamics, chemistry.chemical_compound, 1-Propanol, chemistry, 1-Pentanol, 3-Methyl-2-butanol, General Materials Science, 2-Pentanol, Binary system, Physical and Theoretical Chemistry
Abstract

An apparatus based on a static-analytic method assembled in this work was utilized to perform high pressure (vapour + liquid) equilibria measurements with uncertainties estimated at

Published
2010

18. 3-Pentanol: A New Attractant Present in Volatile Emissions from the Ambrosia Beetle, Megaplatypus mutatus

Author

Raúl Adolfo Alzogaray, Pablo Gatti Liguori, Eduardo Nicolás Zerba, and Paola Gonzalez Audino

Subjects
Male, Time Factors, Biology, Ambrosia beetle, Biochemistry, Gas Chromatography-Mass Spectrometry, chemistry.chemical_compound, Pentanols, Salicaceae, Botany, Animals, Ambrosia, Sex Attractants, Ecology, Evolution, Behavior and Systematics, 3-Pentanol, Behavior, Animal, General Medicine, biology.organism_classification, Coleoptera, Horticulture, chemistry, Sex pheromone, Curculionidae, Female, PEST analysis, Woody plant
Abstract

Megaplatypus mutatus (=Platypus mutatus) (Coleoptera: Platypodidae) is an ambrosia beetle that is native to South America. It attacks only standing live trees and causes severe stem breakage and death in commercial poplar (Populus) plantations. Previous work showed that male M. mutatus emits a sex pheromone composed mainly of (+)-sulcatol and sulcatone. We collected male volatile emissions during the hours of maximum emergence by using a specific polar microextraction phase; analyzed the extract by GC-MS; and tested the biological activity of selected compounds in the extract with a walking behavioral assay. Female M. mutatus emerged primarily between 7 and 11 h. In the chemical analyses of volatiles, a third compound, 3-pentanol, was identified in a small percentage of samples. Walking behavioral bioassays with video image analysis showed that at the doses tested, 3-pentanol elicited an attractive response from females.

Published
2008

20. New Method to Analyse IR-Studies of Monomer-Dimer Self-Association: 2,2-Dimethyl-3-Ethyl-3-Pentanol in Carbon Disulfide as an Example

Author

Dah-Yu Kao and Jenn-Shing Chen

Subjects
chemistry.chemical_compound, Carbon disulfide, 3-Pentanol, Monomer, chemistry, Self association, Dimer, Analytical chemistry, Infrared spectroscopy, Physical and Theoretical Chemistry, Molar absorptivity, Standard enthalpy of formation
Abstract

Two new equations have been derived to treat the IR data from the monomer-dimer self-association. Equation (9), in the text, is to regress the integrated absorbances of the monomer bands to determine the molar absorptivity of the monomer band, ε m, and the dimerization constant, K. Equation (13), in the text, is to regress those of dimer band to obtain the molar absorptivity of the dimer band, ε d, and dimerization constant K. The self-association in the dilute solution of 2,2-dimethyl-3-ethyl-3-pentanol in carbon disulfide at different temperatures has been used as an example to demonstrate the usage of these two equations. The discrepancy between the values of K at the same temperature determined either from the monomer band or from the dimer band can be used as a criterion for the goodness of determination. The standard enthalpy and entropy of dimerization have also been obtained via a van’t Hoff plot from the data of K at different temperatures. The advantages of this new approach have also been discussed.

Published
2004

21. Phase Equilibria in the Binary and Ternary Systems Composed of Diethyl Ketone, 2-Pentanone, and 3-Pentanol at 101.3 kPa

Author

Antonio Aucejo, Carmen Gabaldón, Sonia Loras, Paula Marzal, and Margarita Sanchotello

Subjects
chemistry.chemical_classification, 3-Pentanol, Ternary numeral system, Ketone, UNIQUAC, General Chemical Engineering, 2-Pentanone, Thermodynamics, General Chemistry, chemistry.chemical_compound, chemistry, Azeotrope, Non-random two-liquid model, Ternary operation
Abstract

New vapor−liquid equilibrium data for the binary systems diethyl ketone + 2-pentanone, diethyl ketone + 3-pentanol and 2-pentanone + 3-pentanol and for the diethyl ketone + 2-pentanone + 3-pentanol ternary system are reported at 101.3 kPa. The data were found to be thermodynamically consistent according to the Van Ness−Byer−Gibbs method for the binary systems and according to the McDermott−Ellis method for the ternary one. The experimental results show that the diethyl ketone + 2-pentanone system is well represented by assuming ideal behavior. The other binary systems exhibit slight positive deviations from ideality, and no azeotrope is present. The VLE data have been correlated with the Wilson, UNIQUAC, and NRTL equations. The ternary system does not present an azeotrope and is well predicted from the binary interaction parameters.

Published
2003

22. Synthesis and mesomorphic properties of chiral liquid crystals derived from (S)-lactic acid with 3-pentanol

Author

Shune‐Long Wu and C.-Y. Lin

Subjects
3-Pentanol, Materials science, General Chemistry, Dielectric, Condensed Matter Physics, Ferroelectricity, Lactic acid, chemistry.chemical_compound, Crystallography, chemistry, Liquid crystal, Phase (matter), Transmittance, General Materials Science, Propionates
Abstract

The chiral swallow-tailed liquid crystals, 1-ethylpropyl (R)-2-[4-(4′-alkoxybiphenylcarbonyloxy)-phenoxy]propionates, EPmPBPP (m = 8−12), were prepared by using chiral (S)-lactic acid with 3-pentanol as starting materials. Mesophases and their corresponding transition temperatures were determined by polarizing microscopic textures and DSC. The results showed that all the chiral materials exhibited enantiotropic BP, N*, TGBA*, SmA*, and SmC* phases. Spontaneous polarization, dielectric constant and electro-optical response for the materials in the ferroelectric SmC* phase were investigated. It was noted that the electro-optical response of transmittance versus applied voltage obtained from the ferroelectric phase of material EPmPBPP (m = 10) displayed V-shaped switching, while that of other materials displayed the typical characteristics of ferroelectric hysteresis switching or U-shaped switching.

Published
2002

23. Alcohol dehydration. Isotope studies of the conversion of 3-pentanol

Author

Burtron H. Davis, Buchang Shi, and Hossain A. Dabbagh

Subjects
chemistry.chemical_classification, 3-Pentanol, Alkene, Process Chemistry and Technology, chemistry.chemical_element, Alcohol, medicine.disease, Medicinal chemistry, Catalysis, chemistry.chemical_compound, Deuterium, chemistry, Kinetic isotope effect, medicine, Organic chemistry, Dehydration, Physical and Theoretical Chemistry, Carbon
Abstract

Three deuterated 3-pentanols and undeuterated 3-pentanol were converted using an alumina catalyst. Similar values of the kinetic isotope effect (KIE; kH/kD) were obtained for the rate of conversion of 3-pentanol and the rate of H(D) removal in forming the alkene products. The data support a catalytic dehydration mechanism that involves a concerted removal of H(D) from the –CH2−xDx group and OH (or O) from the carbinol carbon and with a timing such that the transition state resembles neither a carbonion-like nor carbenium-like species.

Published
1999

24. Total Vapor Pressure Measurements for Heptane + 1-Pentanol, + 2-Pentanol, + 3-Pentanol, + 2-Methyl-1-butanol, + 2-Methyl-2-butanol, + 3-Methyl-1-butanol, and + 3-Methyl-2-butanol at 313.15 K

Author

Venkat R. Bhethanabotla, Jonathon M. Rhodes, and Scott W. Campbell

Subjects
Alkane, chemistry.chemical_classification, Heptane, 3-Pentanol, Vapor pressure, General Chemical Engineering, Butanol, Alcohol, General Chemistry, chemistry.chemical_compound, chemistry, 1-Pentanol, Organic chemistry, 2-Butanol
Abstract

Total vapor pressure measurements at 313.15 K are reported for binary systems of heptane with each of seven pentanol isomers: 1-pentanol, 2-pentanol, 3-pentanol, 2-methyl-1-butanol, 2-methyl-2-but...

Published
1997

25. Microbial synthesis of S (+)-1-(2-furyl)-3-pentanol: A pheromone intermediate of bark beetle

Author

Neeta A. Salvi, S. S. Rane, and S.R. Udupa

Subjects
3-Pentanol, Bark beetle, Chalcogran, biology, Pityogenes chalcographus, Stereochemistry, Bioengineering, General Medicine, biology.organism_classification, Applied Microbiology and Biotechnology, chemistry.chemical_compound, chemistry, Biotransformation, Pheromone, Rhizopus arrhizus, Enantiomer, Biotechnology
Abstract

The synthesis of S (+)-1-(2-furyl)-3-pentanol (3), a key intermediate in the synthesis of chalcogran (1) is described via microbial reduction of 1-(2-furyl)-1-pentene-3-one (2) using fungusRhizopus arrhizus.

Published
1995

26. Traslucent pheromone traps increase trapping efficiency of ambrosia beetle Megaplatypus mutatus

Author

Pablo Gatti, Paola Gonzalez-Audino, and Eduardo Nicolás Zerba

Subjects
3-PENTANOL, SULCATONE, (+)-SULCATOL, biology, TRASLUCENT TRAP, Ecology, Megaplatypus, Trapping, Zoología, Ornitología, Entomología, Etología, Ambrosia beetle, Pheromone trap, biology.organism_classification, Reservoir type, Ciencias Biológicas, Agronomy, Pheromone, Ambrosia, PHEROMONE, Agronomy and Crop Science, CIENCIAS NATURALES Y EXACTAS
Abstract

Megaplatypus mutatus (=Platypus mutatus) is an ambrosia beetle native to South America. Unlike most ambrosia beetles, it attacks only living trees, penetrating the xylem of its host by boring long tunnels. These galleries cause severe stem-breakage and mortality in commercial poplar plantations.In previous studies we showed that volatile emissions from pioneer male M. mutatus are composed of (+)-6-methyl-5-hepten-2-ol, 6-methyl-5-hepten-2-one and 3-pentanol. Recently, we developed reservoir type controlled release dispensers and tested the efficacy of various trap designs in the field. Results showed that black cross-vane traps (CIPEIN-CV) captured significantly more insects than other traps designs baited with the same dispensers. In the present study we modified the colour, the construction material and the size of traps with the aim of increasing trapping efficacy and reducing the final trap cost. The results showed that significantly more female and male M. mutatus were captured in small and large traslucent traps (CIPEIN-CVt) than in black CIPEIN-CV trap. Furthermore, traslucent CIPEIN-CVt trap costs were significantly lower than costs for CIPEIN-CV traps. Significantly improved trapping efficacy with an important decrease in final costs will allow detection of considerably lower populations of M. mutatus in monitoring programs. © 2011 Elsevier Ltd. Fil: Gonzalez Audino, Paola Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones Científicas y Técnicas para la Defensa. Centro de Investigación de Plagas e Insecticidas; Argentina. Universidad Nacional de San Martín; Argentina Fil: Gatti, Pablo. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones Científicas y Técnicas para la Defensa. Centro de Investigación de Plagas e Insecticidas; Argentina Fil: Zerba, Eduardo Nicolás. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones Científicas y Técnicas para la Defensa. Centro de Investigación de Plagas e Insecticidas; Argentina. Universidad Nacional de San Martín; Argentina

Published
2011

27. Mating disruption of the ambrosia beetle Megaplatypus mutatus in poplar and hazelnut plantations using reservoir systems for pheromones

Author

Funes, Hernán Martín, Griffo, Raffaele, Zerba, Eduardo Nicolás, and Gonzalez Audino, Paola Andrea

Subjects
CURCULIONIDAE, Ciencias Biológicas, 3-PENTANOL, SULCATOL, SULCATONE, PLATYPODINAE, Otras Ciencias Biológicas, SEX PHEROMONE, COLEOPTERA, CONTROLLED RELEASE DEVICES, CIENCIAS NATURALES Y EXACTAS
Abstract

Megaplatypus mutatus (Chapuis) (Coleoptera: Curculionidae: Platypodinae) is an ambrosia beetle native to South America, but it has recently been introduced into Italy and represents a serious problem in commercial poplar and fruit tree plantations. Male M. mutatus emit a sex pheromone composed of (+)-6-methyl-5-hepten-2-ol [(+)-sulcatol], 6-methyl-5-hepten-2-one (sulcatone), and 3-pentanol. We performed three field trials of mating disruption of M. mutatus in hazelnut and poplar plantations in Argentina and Italy. To perform these tests, we made plastic pheromone reservoir-type dispensers for sulcatol, sulcatone, and 3-pentanol with zero-order kinetics that were deployed in the field during the female flight period. The number of galleries where mating took place was significantly higher in control than in treated areas, indicating that pheromone application had interfered with female behavior and male localization. Because damage reduction was >56% in both countries, these results demonstrate the potential for the strategy of pheromone-mediated mating disruption of M. mutatus in commercial poplar and hazelnut plantations. Also, our study provides the first evidence for successful pheromone-mediated mating disruption in a forest beetle. Fil: Funes, Hernán Martín. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones Científicas y Técnicas para la Defensa. Centro de Investigación de Plagas e Insecticidas; Argentina Fil: Griffo, Raffaele. Servizio Fitosanitario Regionale Campania; Italia Fil: Zerba, Eduardo Nicolás. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones Científicas y Técnicas para la Defensa. Centro de Investigación de Plagas e Insecticidas; Argentina. Universidad Nacional de San Martín; Argentina Fil: Gonzalez Audino, Paola Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones Científicas y Técnicas para la Defensa. Centro de Investigación de Plagas e Insecticidas; Argentina. Universidad Nacional de San Martín; Argentina

Published
2011

28. Synthesis and characterization of dicopper(II,II) and diiron(III,III) complexes with a dinucleating tetraimidazole ligand, 1,5-bis[bis(4-imidazolylmethyl)amino]-3-pentanol

Author

Sachio Hosohara, Masato Nishimura, Masaaki Ohba, Naoki Koura, Hisasi Okawa, Masahito Kodera, and Sigeo Kida

Subjects
Inorganic Chemistry, 3-Pentanol, chemistry.chemical_compound, chemistry, Ligand, Stereochemistry, Materials Chemistry, Physical and Theoretical Chemistry, Cyclic voltammetry, Medicinal chemistry, Magnetic susceptibility
Abstract

A new dinucleating ligand 1,5-bis[bis(4-imidazolylmethyl)amino]-3-pentanol (Hbipl) has been synthesized. It forms the dicopper(II,II) and diiron(III,III) complexes, [Cu 2 (bipl)Cl](ClO 4 ) 2 ·H 2 O and [Fe 2 (bipl)(OAc) 2 ](ClO 4 ) 3 ·H 2 O, which are characterized by elemental analyses, magnetic susceptibility measurements, cyclic voltammetry, and IR and UV-Vis spectroscopies.

Published
1993

29. Enantioselective synthesis of 1-(1,3-dioxolan-2-yl)-3-pentanol from 3-(1,3-dioxolan-2-yl)-propanal by catalytic ethylation

Author

Martin Winter, Jörg Wilken, Ingfried Stahl, and Jürgen Martens

Subjects
Inorganic Chemistry, 3-Pentanol, chemistry.chemical_compound, chemistry, Organic Chemistry, Enantioselective synthesis, Organic chemistry, Physical and Theoretical Chemistry, Alkylation, Enantiomer, Diethylzinc, Catalysis
Abstract

The catalytic enantioselective ethylation of 3-(1,3-dioxolan-2-yl)-propanal by diethylzinc in the presence of various β-aminoalcohol precatalysts is presented. The enantiocontrolled alkylation step was accomplished with enantiomeric ratios of up to 86:14 and chemical yields ranging from 38 to 81% for the resulting 1-(1,3-dioxolan-2-yl)-3-pentanol.

Published
2000

30. Vapour—liquid equilibria in the heptane - 3-pentanol and heptane - 2-methyl-2-butanol systems at constant temperature

Author

Ivan Wichterle, Jana Wolfová, and Jan Linek

Subjects
Heptane, 3-Pentanol, General Chemical Engineering, General Physics and Astronomy, Thermodynamics, Primary alcohol, Isothermal process, chemistry.chemical_compound, chemistry, Azeotrope, Non-random two-liquid model, Binary system, Physical and Theoretical Chemistry, 2-Butanol
Abstract

Vapour—liquid equilibria were measured isothermally in the heptane - 3-pentanol system at 75, 85, and 95 °C and in the heptane - 2-methyl-2-butanol system at 55, 65, 75 °C. Both the systems exhibit azeotropic behaviour. The densities of liquid mixtures were determined at 25 °C. The data were correlated using the Margules, Wilson, and NRTL equations within the accuracy of experimental errors.

Published
1990

31. Synthesis of optically active 1-(2-furyl)-3-pentanol. A simple route to (2S, 5R/S)-chalcogran

Author

Bohumír Koutek, Aleš Svatoš, Miroslav Romaňuk, David Šaman, Petr Maloň, and Eva Körblová

Subjects
3-Pentanol, chemistry.chemical_compound, Chalcogran, Chemistry, Organic chemistry, General Chemistry, Optically active
Abstract

Enantioselective synthesis of the title alcohol VI is reported, which utilizes either pig pancreatic lipase mediated transesterification or a reduction with baker's yeast at the key steps. The transesterification of VI gives (S)-(+)-VI (e.e. 80%) or (R)-(-)-V (e.e. 50%), while the reduction of the corresponding α,β-unsaturated ketone IV affords (R)-(-)-VI (e.e. 30%). These intermediates allowed to prepare a mixture of chalcogran I diastereoisomers containing 54% of the biologically active (2S, 5R) isomer.

Published
1990

32. Binary Total Pressure Measurements for Methanol with 1-Pentanol, 2-Pentanol, 3-Pentanol, 2-Methyl-1-butanol, 2-Methyl-2-butanol, 3-Methyl-1-butanol, and 3-Methyl-2-butanol at 313.15 K

Author

Venkat R. Bhethanabotla, Scott W. Campbell, and Demensio P. Barton

Subjects
3-Pentanol, Stereochemistry, General Chemical Engineering, Butanol, General Chemistry, 2-Methyl-1-butanol, chemistry.chemical_compound, chemistry, 1-Pentanol, 3-Methyl-2-butanol, Organic chemistry, 2-Pentanol, Methanol, 2-Butanol
Abstract

Total pressure measurements at 313.15 K are reported for binary systems of methanol with each of seven pentanol isomers: 1-pentanol, 2-pentanol, 3-pentanol, 2-methyl-1-butanol, 2-methyl-2-butanol, 3-methyl-1-butanol, and 3-methyl-2-butanol. The results were obtained using a Van Ness apparatus and were fitted to the four-suffix Margules equation using Barker`s method. The four-suffix Margules equation represents the data to within an average of approximately 0.02 kPa.

Published
1996

33. Oxygenation of 3-pentanol to 3-pentanone catalyzed by polymer–platinum complex

Author

Ying-Yan Jiang, Xiao-Tun Yang, Mei-Yu Huang, and Shu-Pu Yin

Subjects
chemistry.chemical_classification, 3-Pentanol, Inorganic polymer, Polymers and Plastics, Inorganic chemistry, Polymer, 3-Pentanone, Oxygenation, Photochemistry, Catalysis, Solvent, chemistry.chemical_compound, chemistry, Yield (chemistry)
Abstract

A new inorganic polymer–platinum complex, silicasupported polysilazane–platinum complex, has been prepared and found to be capable of catalyzing the oxygenation of 3-pentanol to 3-pentanone in 100% yield at moderate temperature and under atmospheric oxygen pressure. Water is the best solvent for this reaction. This inorganic polymer complex is very stable in the reaction and can be reused several times without any appreciable change in catalytic activity.

Published
1994

35. ChemInform Abstract: Synthesis of 1,5-Bifunctionalized Optically Active 3-Pentanol as a Reversible Chiral Building Block. Asymmetric Reduction of 4-(1,3-Dithian-2-yl)-3-oxobutanoates with Fermenting Bakers′ Yeast

Author

Kazuyoshi Itoh, Hidenori Chikashita, and Kazuhiko Ohkawa

Subjects
3-Pentanol, chemistry.chemical_compound, Homologous series, chemistry, Yield (chemistry), Alkoxy group, Organic chemistry, Fermentation, General Medicine, Enantiomeric excess, Bakers Yeast, Yeast
Abstract

Bakers’ yeast reduction of a homologous series of 4-(1,3-dithian-2-yl)-3-oxobutanoates to the corresponding chiral 4-(1,3-dithian-2-yl)-3-hydroxybutanoates was investigated. A shift in enantiomeric excess, stereochemistry, and chemical yield of the reduction product was observed as the size of the ester alkoxyl group was changed. The kind of bakers’ yeast (raw or dry) and reaction conditions also affected the optical purity and chemical yield of the product. These studies showed that the reduction of methyl 4-(1,3-dithian-2-yl)-3-oxobutanoate with the raw yeast in the absence of additives was most efficient, giving methyl (S)-4-(1,3-dithian-2-yl)-3-hydroxybutanoate with 77% ee in 37% yield.

Published
1990

36. A binuclear manganese(III) complex with 1,5-bis(salicylideneamino)-3-pentanol which contains chloride ions

Author

Tadashi Tokii, Masahiro Mikuriya, and Yo Yamato

Subjects
3-Pentanol, Schiff base, Inorganic chemistry, chemistry.chemical_element, Manganese, Crystal structure, Chloride, Ion, Inorganic Chemistry, chemistry.chemical_compound, chemistry, X-ray crystallography, Polymer chemistry, Materials Chemistry, medicine, Molecule, Physical and Theoretical Chemistry, medicine.drug
Published
1991

37. Gaseous 3-pentanol primes plant immunity against a bacterial speck pathogen, Pseudomonas syringae pv. tomato via salicylic acid and jasmonic acid-dependent signaling pathways in Arabidopsis.

Author

Song GC, Choi HK, and Ryu CM

Abstract

3-Pentanol is an active organic compound produced by plants and is a component of emitted insect sex pheromones. A previous study reported that drench application of 3-pentanol elicited plant immunity against microbial pathogens and an insect pest in crop plants. Here, we evaluated whether 3-pentanol and the derivatives 1-pentanol and 2-pentanol induced plant systemic resistance using the in vitro I-plate system. Exposure of Arabidopsis seedlings to 10 μM and 100 nM 3-pentanol evaporate elicited an immune response to Pseudomonas syringae pv. tomato DC3000. We performed quantitative real-time PCR to investigate the 3-pentanol-mediated Arabidopsis immune responses by determining Pathogenesis-Related (PR) gene expression levels associated with defense signaling through salicylic acid (SA), jasmonic acid (JA), and ethylene signaling pathways. The results show that exposure to 3-pentanol and subsequent pathogen challenge upregulated PDF1.2 and PR1 expression. Selected Arabidopsis mutants confirmed that the 3-pentanol-mediated immune response involved SA and JA signaling pathways and the NPR1 gene. Taken together, this study indicates that gaseous 3-pentanol triggers induced resistance in Arabidopsis by priming SA and JA signaling pathways. To our knowledge, this is the first report that a volatile compound of an insect sex pheromone triggers plant systemic resistance against a bacterial pathogen.

Published
2015
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38. The Association of Three Branched Alkyl Derivatives of 3-Pentanol

Author

D. van Duijn, P. Bordewijk, and M. Kunst

Subjects
chemistry.chemical_classification, 3-Pentanol, chemistry.chemical_compound, chemistry, Infrared, General Chemical Engineering, Carbon tetrachloride, Organic chemistry, Physical chemistry, Dielectric, Alkyl
Abstract

Infrared absorptions in the hydroxyl stretching range and static dielectric constants have been determined for solutions of 2,2,4-trimethyl-3-pentanol, 2,4-dimethyl-3-enthyl-3-pentanol and 2,2,4,4-tetramethyl-3-isopropyl-3-pentanol in carbon tetrachloride at several temperatures. – The results are interpreted with a monomer-dimer-tetramer equilibrium for the first two alcohols and with a monomer-dimer equilibrium for the last one, and the relevant parameters are given.

Published
1978

39. Synthesis of 1,5-Bifunctionalized Optically Active 3-Pentanol as a Reversible Chiral Building Block. Asymmetric Reduction of 4-(1,3-Dithian-2-yl)-3-oxobutanoates with Fermenting Bakers’ Yeast

Author

Kazuyoshi Itoh, Kazuhiko Ohkawa, and Hidenori Chikashita

Subjects
Homologous series, chemistry.chemical_compound, 3-Pentanol, chemistry, Yield (chemistry), Alkoxy group, Organic chemistry, Fermentation, General Chemistry, Bakers Yeast, Enantiomeric excess, Yeast
Abstract

Bakers’ yeast reduction of a homologous series of 4-(1,3-dithian-2-yl)-3-oxobutanoates to the corresponding chiral 4-(1,3-dithian-2-yl)-3-hydroxybutanoates was investigated. A shift in enantiomeric excess, stereochemistry, and chemical yield of the reduction product was observed as the size of the ester alkoxyl group was changed. The kind of bakers’ yeast (raw or dry) and reaction conditions also affected the optical purity and chemical yield of the product. These studies showed that the reduction of methyl 4-(1,3-dithian-2-yl)-3-oxobutanoate with the raw yeast in the absence of additives was most efficient, giving methyl (S)-4-(1,3-dithian-2-yl)-3-hydroxybutanoate with 77% ee in 37% yield.

Published
1989

40. Thermodynamic properties of 3-pentanol + diethylamine mixtures

Author

Hans N. Stein, van Ajg Alois Diemen, Cjm Houtepen, Chemical Engineering and Chemistry, and Materials and Interface Chemistry

Subjects
Diethylamine, 3-Pentanol, chemistry.chemical_compound, chemistry, Hydrogen bond, Organic chemistry, Molecule, ComputingMilieux_LEGALASPECTSOFCOMPUTING, Physical and Theoretical Chemistry, Condensed Matter Physics, Instrumentation, Medicinal chemistry
Abstract

Values for excess functions ( H E , V E , G E , TS E ) are reported for 3-pentanol+ diethylamine mixtures at 298.15 K. The results indicate formation of three hydrogen bonds per molecule 3-pentanol in excess diethylamine, and of two hydrogen bonds per molecule diethylamine in excess 3-pentanol.

Published
1976

41. Comparison of Antimicrobial Activity of Nuclear‐Substituted Aromatic Esters of 5‐Dimethylamino‐1‐Phenyl‐3‐Pentanol and 3‐Dimethylamino‐1‐Phenyl‐1‐Propanol with Related Cyclic analogs

Author

H. A. Baker, Jonathan R. Dimmock, A. M. Qureshi, L.M. Noble, and P. J. Smith

Subjects
3-Pentanol, Carbon atom, Bacteria, Chemistry, Stereochemistry, Drug Evaluation, Preclinical, Pharmaceutical Science, Esters, Ketones, Nitro Compounds, Ring (chemistry), Antimicrobial, Amino Alcohols, Anti-Bacterial Agents, Structure-Activity Relationship, chemistry.chemical_compound, 1-Propanol, polycyclic compounds, Lower activity
Abstract

A series of six aromatic esters of both 5‐dimethyl‐amino‐1‐phenyl‐3‐pentanol and 3‐dimethylamino‐1‐(2‐phenylcy‐clohexyl)‐1‐propanol was prepared. Antimicrobial evaluation showed that the cyclic analogs had approximately twice the activity of the open chain series; in particular, the o ‐chlorophenyl ester showed pronounced activity against three pathogenic fungi at approximately 10 ppm. Aromatic esters of 3‐dimethylamino‐1‐phenyl‐1‐propanol were prepared and demonstrated lower activity than two esters of 2‐dimethylamino‐1‐phenylcyclohexanol. The screening results showed that the best activity was found when a dimethylene chain was present between the phenyl ring and the carbon atom bearing the acyloxy function and that the cyclic derivatives were more active than their more flexible counterparts.

Published
1976

50. The Chromic Acid Oxidation of 3-Ethyl-3-pentanol

Author

W. F. Sager

Subjects
3-Pentanol, chemistry.chemical_compound, Colloid and Surface Chemistry, Chemistry, Chromic acid, Organic chemistry, General Chemistry, Biochemistry, Catalysis
Published
1956

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