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Dive into the research topics where Tatiana A. Zaimovskaya is active.

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Featured researches published by Tatiana A. Zaimovskaya.


Russian Chemical Bulletin | 2003

Electrocatalytic transformation of malononitrile and cycloalkylidenemalononitriles into spirotricyclic and spirotetracyclic compounds containing cyclopropane and pyrroline fragments

Michail N. Elinson; S. K. Fedukovich; Tatiana A. Zaimovskaya; Anatoly N. Vereshchagin; G. I. Nikishin

Electrolysis of cycloalkylidenemalononitriles and malononitrile in MeOH in an undivided cell in the presence of the NaBr—NaOMe mediator system gives spirotricyclic compounds containing cyclopropane and pyrroline fragments in 50—77% yields. Spirobicyclic and spirotricyclic tetracyanocyclopropanes undergo electrolysis in alcohols to afford spirotricyclic and spirotetracyclic products containing cyclopropane and pyrroline fragments in 50—93% yields.


Russian Chemical Bulletin | 2005

Electrocatalytic transformation of dialkyl malonates and arylidene- or alkylidenemalononitriles into dialkyl esters of 3-substituted 2,2-dicyanocyclopropane-1,1-dicarboxylic acids

Michail N. Elinson; Sergey K. Feducovich; Tatiana A. Zaimovskaya; Anatoly N. Vereshchagin; Sergey V. Gorbunov; G. I. Nikishin

Electrolysis of alcoholic solutions of dialkyl malonates and arylidene- or alkylidenemalononitriles in the presence of NaBr in an undivided cell gave dialkyl esters of 3-substituted 2,2-dicyanocyclopropane-1,1-dicarboxylic acids in 60–90% yields.


Russian Chemical Bulletin | 2005

Stereoselective electrocatalytic transformations of malononitrile and aromatic aldehydes into (1R,5S,6R)*-4,4-dialkoxy-2-amino-6-aryl-1,5-dicyano-3-azabicyclo[3.1.0]hex-2-enes

Michail N. Elinson; K. Feducovich; Tatiana A. Zaimovskaya; Anatoly N. Vereshchagin; G. I. Nikishin

Electrolysis of aromatic aldehydes and malononitrile in alcohols in an undivided cell in the presence of a NaBr-NaOAc mediatory system stereoselectively gave bicyclic compounds containing the cyclopropane and pyrroline fragments in 60 to 70% yields. In the bicyclic products, the benzene and pyrroline rings are on different sides of the cyclopropane ring.


Russian Chemical Bulletin | 2003

Electrochemically induced Favorsky rearrangement: transformations of dialkyl ketones into α,β-unsaturated carboxylic esters

Michail N. Elinson; Sergey K. Feducovich; Tatiana A. Zaimovskaya; Alexander S. Dorofeev; Anatoly N. Vereshchagin; G. I. Nikishin

Electrolysis of dialkyl ketones in MeOH in the presence of the NaI—NaOH mediator system placed in an undivided cell involves a process analogous to the Favorsky rearrangement of α,α-dihalodialkyl ketones giving rise to methyl esters of α,β-unsaturated carboxylic acids in 70—75% substance yields and 60—70% current yields.


Monatshefte Fur Chemie | 2018

Electrochemical cascade assembling of heterocyclic ketones and two molecules of malononitrile: facile and efficient ‘one-pot’ approach to 6-heterospiro[2.5]octane-1,1,2,2-tetracarbonitrile scaffold

Michail N. Elinson; Anatoly N. Vereshchagin; Alexander D. Korshunov; Tatiana A. Zaimovskaya; Mikhail P. Egorov

The electrochemically induced reaction of heterocyclic ketones and two equivalents of malononitrile in an undivided cell in alcohols in the presence of sodium bromide as mediator leading to the selective formation of substituted 6-heterospirocyclopropane-1,1,2,2-tetracarbonitriles in 50–75% yields as a result of the complex cascade process has been investigated. This new electrocatalytic cascade process smoothly proceeds with different types of heterocyclic ketones and resulted in ‘one-pot’ formation of 6-heterospirocyclopropane-1,1,2,2-tetracarbonitriles with prominent pharmacological and physiological activity. The application of this electrochemical cascade method to the formation of medicinally relevant substituted 6-heterospiro[2.5]octane-1,1,2,2-tetracarbonitriles is also beneficial from the viewpoint of diversity-oriented large-scale processes.Graphical abstract


Mendeleev Communications | 2012

Non-Catalytic Thermal Multicomponent Assembling of Isatin, Cyclic CH-Acids and Malononitrile: An Efficient Approach to Spirooxindole Scaffold

Michail N. Elinson; Alexey I. Ilovaisky; Valentina M. Merkulova; Tatiana A. Zaimovskaya; Gennady I. Nikishin


Tetrahedron Letters | 2010

The first example of the cascade assembly of a spirocyclopropane structure: direct transformation of benzylidenemalononitriles and N,N′-dialkylbarbituric acids into substituted 2-aryl-4,6,8-trioxo-5,7-diazaspiro[2.5]octane-1,1-dicarbonitriles

Michail N. Elinson; Anatolii N. Vereshchagin; Nikita O. Stepanov; Tatiana A. Zaimovskaya; Valentina M. Merkulova; Gennady I. Nikishin


Tetrahedron | 2008

Electrocatalytic cascade multicomponent assembling: stereoselective one-pot synthesis of the substituted 3-azabicyclo[3.1.0]hexane-1-carboxylate system from aldehyde, malononitrile, malonate and methanol

Anatolii N. Vereshchagin; Michail N. Elinson; Tatiana A. Zaimovskaya; Gennady I. Nikishin


Tetrahedron | 2013

Electrocatalytic and chemical methods in MHIRC reactions: the first example of the multicomponent assembly of medicinally relevant spirocyclopropylbarbiturates from three different molecules

Anatolii N. Vereshchagin; Michail N. Elinson; Evgeniya O. Dorofeeva; Nikita O. Stepanov; Tatiana A. Zaimovskaya; Gennady I. Nikishin


Mendeleev Communications | 2013

Solvent-free cascade assembling of salicylic aldehydes and malononitrile: rapid and efficient approach to 2-amino-4H-chromene scaffold

Michail N. Elinson; Michael G. Medvedev; Alexey I. Ilovaisky; Valentina M. Merkulova; Tatiana A. Zaimovskaya; Gennady I. Nikishin

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Michail N. Elinson

Russian Academy of Sciences

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Mikhail P. Egorov

Russian Academy of Sciences

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Fedor V. Ryzhkov

Russian Academy of Sciences

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G. I. Nikishin

Russian Academy of Sciences

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