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4 results on '"A. S. Medvedevskikh"'

1. Phenylglyoxal dihydrazones as unexpected products in the synthesis of 1,2,4-triazines by interaction of α-bromoacetophenones and arylhydrazides

Author

Oleg N. Chupakhin, Dmitry S. Kopchuk, Albert F. Khasanov, Vladimir L. Rusinov, Grigory V. Zyryanov, Igor S. Kovalev, and A. S. Medvedevskikh

Subjects
CONDENSATION, chemistry.chemical_classification, PHENYLGLYOXAL DIHYDRAZONE, Phenylglyoxal, chemistry.chemical_compound, Chemistry, Carboxylic acid, Organic Chemistry, Condensation, Organic chemistry, 1,2,4-TRIAZINE, AROMATIC ACID HYDRAZIDES, Α-BROMOACETOPHENONE
Abstract

On interacting α-bromoacetophenones with aromatic carboxylic acid hydrazides, the formation of two reaction products was observed in certain cases, the expected 1,2,4-triazine and the phenylglyoxal dihydrazone as an unexpected product. The effect of substituents in the initial substrates and of the conditions of carrying out the synthesis on the direction of the reaction have been studied. © 2013 Springer Science+Business Media New York.

Published
2013
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2. ChemInform Abstract: Phenylglyoxal Dihydrazones as Unexpected Products in the Synthesis of 1,2,4-Triazines by Interaction of α-Bromoacetophenones and Arylhydrazides

Author

Igor S. Kovalev, A. S. Medvedevskikh, Albert F. Khasanov, Dmitry S. Kopchuk, Vladimir L. Rusinov, Oleg N. Chupakhin, and Grigory V. Zyryanov

Subjects
chemistry.chemical_classification, Phenylglyoxal, chemistry.chemical_compound, chemistry, Carboxylic acid, Product (mathematics), Organic chemistry, General Medicine
Abstract

On interacting α-bromoacetophenones with aromatic carboxylic acid hydrazides, the formation of two reaction products was observed in certain cases, the expected 1,2,4-triazine and the phenylglyoxal dihydrazone as an unexpected product. The effect of substituents in the initial substrates and of the conditions of carrying out the synthesis on the direction of the reaction have been studied.

Published
2014
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3. ChemInform Abstract: Preparation of Pyridyl-Substituted Monoazatriphenylenes

Author

Vladimir L. Rusinov, Grigory V. Zyryanov, Albert F. Khasanov, Oleg N. Chupakhin, Dmitry S. Kopchuk, A. S. Medvedevskikh, and Igor S. Kovalev

Subjects
chemistry.chemical_compound, chemistry, General Medicine, Combinatorial chemistry, Triazine
Abstract

An efficient method for the preparation of cycloalkene-anellated derivatives of monoazatriphenylenes based on an aza-Diels—Alder reaction of triazine (III) with 1-morpholinocycloalkenes is presented.

Published
2013
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4. Preparation of pyridyl-substituted Monoazatriphenylenes

Author

Igor S. Kovalev, Oleg N. Chupakhin, Grigory V. Zyryanov, A. S. Medvedevskikh, Dmitry S. Kopchuk, Albert F. Khasanov, and Vladimir L. Rusinov

Subjects
AZATRIPHENYLENES, ENAMINE, chemistry.chemical_compound, Chemistry, Organic Chemistry, Organic chemistry, DIELS-ALDER REACTION, 1,2,4-TRIAZINE, Cycloaddition, Triazine, Enamine, Diels–Alder reaction, CYCLOADDITION
Abstract

An efficient method for the preparation of cycloalkene-anellated derivatives of monoazatriphenylenes based on an aza-Diels—Alder reaction of triazine (III) with 1-morpholinocycloalkenes is presented.

Published
2013

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