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Your search keyword '"Irena Valterová"' showing total 7 results
Start Over Author "Irena Valterová" Publisher georg thieme verlag kg
7 results on '"Irena Valterová"'

1. Catalytic Asymmetric Allylation of Aliphatic Aldehydes by Chiral Bipyridine N,N′-Dioxides

Author

Thomas Boyd, Martin Kotora, Jana Hodačová, Irena Valterová, and Radim Hrdina

Subjects
Solvent, chemistry.chemical_compound, Bipyridine, Chloroform, Chemistry, Tetrahydroisoquinoline, Organic Chemistry, Lewis acids and bases, Solvent effects, Medicinal chemistry, Silane, Catalysis
Abstract

A new class of axially chiral bipyridine N,N¢-oxides with bis(tetrahydroisoquinoline) framework were tested as catalysts in the reaction of aliphatic aldehydes with allyl(trichloro)silane to af- ford homoallylic alcohols. The course of the reaction, that is, the catalytic activity as well as enantioselectivity, is strongly dependent on the solvent used. The products were obtained in good yields and up to 68% ee in chloroform.

Published
2008
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2. Isolation an identification of rotenoids in Pachyrhizus tuberosus seeds

Author

Jaroslav Havlik, Olga Leuner, Jana Hummelova, E.A. Prokudina, Milos Budesinsky, Irena Valterová, L. Kokoska, Oldrich Lapcik, and Vladimír Vrkoslav

Subjects
Pharmacology, business.industry, Organic Chemistry, Pharmaceutical Science, Biology, Isolation (microbiology), Analytical Chemistry, Biotechnology, Pachyrhizus tuberosus, Complementary and alternative medicine, Drug Discovery, Botany, Molecular Medicine, Identification (biology), business
Published
2011
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4. Biotransformation of Citronellal bySolanum avicularePlant Cells: Preparation of Allelopathic (+)-p-Menthane-3,8-diols

Author

Tomas Macek, Irena Valterová, Tomas Vanek, M. Hamplova, and Tomas Vaisar

Subjects
Pharmacology, biology, Organic Chemistry, Pharmaceutical Science, Solanum aviculare, biology.organism_classification, Plant cell, Analytical Chemistry, chemistry.chemical_compound, Complementary and alternative medicine, chemistry, Biotransformation, Drug Discovery, Citronellal, Botany, Molecular Medicine, Allelopathy
Published
1991
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5. Biotransformation of (+)-3-Carene bySolanum, avicularePlant Cells

Author

S. Vašíčková, Tomas Macek, Miloš Buděšínský, Irena Valterová, and Tomáš Vaněk

Subjects
Pharmacology, biology, Organic Chemistry, Carene, Pharmaceutical Science, Solanum aviculare, Plant cell, biology.organism_classification, Analytical Chemistry, chemistry.chemical_compound, Complementary and alternative medicine, chemistry, Biotransformation, Drug Discovery, Botany, Molecular Medicine
Published
1990
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7. Biotransformation of Monoterpenes bySolanum aviculareandDioscorea deltoideaPlant Cells

Author

Tomas Macek, Irena Valterová, Tomáš Vaněk, M. Hamplova, and Tomas Vaisar

Subjects
Pharmacology, biology, Organic Chemistry, Pharmaceutical Science, Solanum aviculare, Plant cell, biology.organism_classification, Analytical Chemistry, Dioscorea deltoidea, Complementary and alternative medicine, Biotransformation, Drug Discovery, Botany, Molecular Medicine
Published
1992
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