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16 results on '"Diazines"'

3. ChemInform Abstract: Metal Free C-H Functionalization of Diazines and Related Heteroarenes with Organoboron Species and Its Application in the Synthesis of a CDK Inhibitor, Meriolin 1.

Author

Thatikonda, Thanusha, Singh, Umed, Ambala, Srinivas, Vishwakarma, Ram A., and Singh, Parvinder Pal

Subjects
*CARBON-hydrogen bonds, *DIAZINES, *HETEROARENES, *ORGANOBORON compounds, *CYCLIN-dependent kinase inhibitors
Abstract

A broad range of hetarenes is coupled with various aryl and hetaryl boronic acids to form the products in moderate yields. [ABSTRACT FROM AUTHOR]

Published
2016
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4. ChemInform Abstract: Azine and Diazine Functionalization Using 2,2,6,6-Tetramethylpiperidino-Based Lithium-Metal Combinations: Application to the Synthesis of 5,9-Disubstituted Pyrido[3′,2′:4,5]pyrrolo[1,2-c]pyrimidines.

Author

Marquise, Nada, Nguyen, Tan Tai, Chevallier, Floris, Picot, Laurent, Thiery, Valerie, Lozach, Olivier, Bach, Stephane, Ruchaud, Sandrine, and Mongin, Florence

Subjects
*DIAZINES, *RING formation (Chemistry), *PYRIMIDINE derivatives, *ANNULATION, *PYRIDINE derivatives, *PYRROLE derivatives, *SUBSTITUENTS (Chemistry)
Abstract

The title compounds show moderate antiproliferative activity and low kinase inhibition in melanoma cells. [ABSTRACT FROM AUTHOR]

Published
2016
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5. ChemInform Abstract: One Step Synthesis of Highly Functionalized Thiazolo[3,2-b][1,2,4]triazole, Triazolo[1,5-a]pyrimidine and Triazolo[3,4-b][1,3,4]thiadiazine.

Author

Shah, Tariq A., Ahmad, Zubair, Mir, Niyaz A., Muneer, M., Rath, Nigam P., and Ahmad, Musheer

Subjects
*THIAZOLE derivatives, *TRIAZOLES, *PYRIMIDINES, *DIAZINES, *ACETYLENE derivatives
Abstract

The reaction of dibenzoylacetylene with triazoles gives the title compounds with excellent yields via a catalyst-free one-pot cyclization at room temperature. [ABSTRACT FROM AUTHOR]

Published
2016
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6. ChemInform Abstract: Cyclization of 4-Phenylthiosemicarbazide with Phenacylbromide Revisited. Formation of 1,3,4-Thiadiazines and of Isomeric 1,3-Thiazoles.

Author

Pfeiffer, Wolf‐Diethard, Junghans, Dieter, Saghyan, Ashot S., and Langer, Peter

Subjects
*PHENYL compound derivatives, *THIOSEMICARBAZONES, *AZIDE derivatives, *BROMIDES, *DIAZINES, *ISOMERIZATION, *THIAZOLES, *RING formation (Chemistry)
Abstract

Previously reported condensation of phenacyl bromide (I) with phenylthiosemicarbazide (II) gave mainly the corresponding 1,3,4-thiadiazine (III) while formation of 2-phenylimino-4-phenyl-2,3-dihydro-1,3-thiazol-3-amine (IV) needs harsher conditions, e. [ABSTRACT FROM AUTHOR]

Published
2015
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7. ChemInform Abstract: Non-Precious Metals Catalyze Formal [4 + 2] Cycloaddition Reactions of 1,2-Diazines and Siloxyalkynes under Ambient Conditions.

Author

Sumaria, Chintan S., Tuerkmen, Yunus E., and Rawal, Viresh H.

Subjects
*METAL catalysts, *RING formation (Chemistry), *DIAZINES, *SILOXY group, *PHENANTHRENE derivatives
Abstract

The study demonstrates the possibility of switching from catalysts with precious metals such as Ag to more economical metal catalysts containing Cu or Ni, respectively. [ABSTRACT FROM AUTHOR]

Published
2014
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8. ChemInform Abstract: Dipolar and V-Shaped Structures Incorporating Methylenepyran and Diazine Fragments.

Author

Achelle, Sylvain, Kahlal, Samia, Saillard, Jean‐Yves, Cabon, Nolwenn, Caro, Bertrand, and Robin‐le Guen, Francoise

Subjects
*PYRAN derivatives, *PYRIMIDINE derivatives, *PYRAZINE derivatives, *CONDENSATION, *VISIBLE spectra, *CHROMOPHORES, *DIAZINES
Abstract

Various novel dipolar V-shaped chromophores are prepared via condensation of methylenepyran aldehydes and methylpyrimines. [ABSTRACT FROM AUTHOR]

Published
2014
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9. ChemInform Abstract: Synthesis and Reactions of 1,3,4-Selenadiazines.

Author

Langer, Peter, Pfeiffer, Wolf‐Diethard, Rossberg, Harald, Kelzhanova, Nazken, Villinger, Alexander, and Saginayev, Amanzhan T.

Subjects
*DIAZINES, *RING formation (Chemistry), *PHENYL compounds, *PYRAZOLE derivatives, *BROMIDES, *ORGANIC compounds
Abstract

The cyclization of selenosemicarbazides (I) and (VI) with phenacyl bromides (II) leads to desired 1,3,4-selenadiazines (III) and (VII), respectively. [ABSTRACT FROM AUTHOR]

Published
2014
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10. ChemInform Abstract: [2 + 2 + 2] Cycloadditions of Siloxy Alkynes with 1,2-Diazines: From Reaction Discovery to Identification of an Antiglycolytic Chemotype.

Author

Montavon, Timothy J., Tuerkmen, Yunus E., Shamsi, Noumaan A., Miller, Christopher, Sumaria, Chintan S., Rawal, Viresh H., and Kozmin, Sergey A.

Subjects
*RING formation (Chemistry), *DIAZINES, *PYRIDAZINES, *PYRIMIDINES, *POLYCYCLIC compounds
Abstract

Simple pyridazines are unreactive under the investigated conditions. [ABSTRACT FROM AUTHOR]

Published
2014
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11. ChemInform Abstract: Selective C-H Fluorination of Pyridines and Diazines Inspired by a Classic Amination Reaction.

Author

Fier, Patrick S. and Hartwig, John F.

Subjects
*FLUORINATION, *PYRIDINE, *DIAZINES, *AMINATION, *CARBON-hydrogen bonds, *QUINOLINE derivatives
Abstract

A side selective single-fluorination of pyridines is presented using commercially available AgF2 as fluorination agent and avoiding tedious multiple step procedures. [ABSTRACT FROM AUTHOR]

Published
2014
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14. ChemInform Abstract: Synthesis and Photophysical Properties of Push-Pull Structures Incorporating Diazines as Attracting Part with a Fluorene Core.

Author

Denneval, Charline, Moldovan, Oana, Baudequin, Christine, Achelle, Sylvain, Baldeck, Patrice, Ple, Nelly, Darabantu, Mircea, and Ramondenc, Yvan

Subjects
*PHOTOCHEMISTRY, *CHEMICAL structure, *DIAZINES, *FLUORENE, *TRIAZOLE derivatives, *CARBON-carbon bonds
Abstract

Several new push-pull fluorene derivatives such as (IV), (VI), and (VII) are prepared in order to test their photophysical properties. [ABSTRACT FROM AUTHOR]

Published
2014
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15. ChemInform Abstract: Synthesis of 6,7-Dichloropyrido[1,2-a]benzimidazole-8,9-dione and Its Analogues and Their Reactions with Nucleophiles.

Author

Batenko, Nelli, Belyakov, Sergey, Kiselovs, Glebs, and Valters, Raimonds

Subjects
*BENZIMIDAZOLES, *CHEMICAL synthesis, *NUCLEOPHILES, *CHEMICAL reactions, *QUINONE derivatives, *PYRIDINE derivatives, *DIAZINES
Abstract

It is demonstrated that chloranil reacts with 2-aminoazines or analogous diazines to give o-quinone derivatives. [ABSTRACT FROM AUTHOR]

Published
2013
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16. ChemInform Abstract: Mannich Reaction in the Synthesis of N,S-Containing Heterocycles. Part 15. Multicomponent Cascade Synthesis of 3,4,6a,7,8,9,10,10a-Octahydro-2H,6H-pyrimido[4′,5′:4,5]pyrido[2,1-b] [1,3,5]thia(selena)diazine Derivatives.

Author

Frolov, K. A., Dotsenko, V. V., and Krivokolysko, S. G.

Subjects
*HETEROCYCLIC compounds synthesis, *MANNICH reaction, *DIAZINES
Abstract

4 Title compounds of type (VI) are prepared. [ABSTRACT FROM AUTHOR]

Published
2013
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