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Dive into the research topics where A. S. Medvedeva is active.

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Featured researches published by A. S. Medvedeva.


ChemInform | 1973

3,5-DI-(HYDROXYORGANYL)-PYRAZOLE

A. S. Medvedeva; M. M. Demina; I. D. Kalikhman; M. G. Voronkov

The reaction of primary-tertiary and secondary-tertiary aliphatic diacetylenic ζ-glycols with hydrazine hydrate leads to the formation of isomeric 3,5-di(hydroxyalkyl)pyrazoles in which the pyrazole ring is present both in the α and in the β position to the tertiary carbon atom to which the hydroxy group is attached. The structure of the hydrocarbon substituents connected with this atom substantially affects the ratio of the α and β isomers. The addition of hydrazine hydrate to aliphatic glycols and their monoethers is accompanied by the formation of individual β-(hydroxyalkyl)pyrazoles.


ChemInform | 2010

Ethylenedinitramine - An Effective Catalyst in the Trimethylsilylation of Acetylenic Alcohols.

A. S. Medvedeva; I. A. Yazovtsev; L. P. Safronova; M. M. Demina


ChemInform | 2010

Synthesis and Some Reactions of Silyldiacetylenediols.

V. V. Novokshonov; A. S. Medvedeva; M. M. Demina; L. P. Safronova; M. G. Voronkov


ChemInform | 2010

Trimethylsilylation of Acetylenic Alcohols and Glycols.

M. M. Demina; A. A. Velikanov; A. S. Medvedeva; M. G. Voronkov; A. S. Zaks


ChemInform | 2010

Synthesis of Some α‐Mono‐ and ‐Diacetylenic Hydrosilanes.

A. S. Medvedeva; I. A. Yazovtsev; M. M. Demina; G. S. Lyashenko; O. B. Kozyreva; M. G. Voronkov


ChemInform | 1997

O → Csp Migration of a Trimethylsilyl Group in Trimethylsilyl Ethers of Acetylenic Alcohols.

V. V. Novokshonov; A. S. Medvedeva; M. M. Demina; L. V. Sherstyannikova; M. G. Voronkov


ChemInform | 1994

Hydrosilylation and Hydrogermylation of 3‐Oxo‐2‐(2‐propynyl)‐1,2‐ benzisothiazoline 1,1‐Dioxide.

G. S. Lyashenko; A. S. Medvedeva; L. P. Safronova; O. B. Bannikova; M. G. Voronkov


ChemInform | 1987

Influence of Structural Factors and Polarity of the Medium on the Regioselectivity of the Reaction of Methyl Diazoacetate with Substituted Propynals.

A. S. Medvedeva; O. I. Margorskaya; N. I. Golovaova; I. D. Kalikhman; M. M. Demina; N. S. Vyazankin


ChemInform | 1987

Reaction of Trimethylsilylpropiolic Acid Derivatives with Some Hydrazines.

A. S. Medvedeva; M. M. Dyomina; I. D. Kalikhman; E. I. Kositsyna; N. S. Vyazankin


ChemInform | 1985

REACTION OF TRIMETHYLSILYLPROPIOLYL CHLORIDE WITH BENZIMIDAZOLE AND INDOLE

L. P. Safronova; A. S. Medvedeva; N. S. Vyazankin

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M. G. Voronkov

Russian Academy of Sciences

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I. D. Kalikhman

Ben-Gurion University of the Negev

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