Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Alexander D. Korshunov"'
Autor:
Kirill G. Karapetyan, Inna V. Dorosh, Pyotr V. Zgonnik, Alexander D. Korshunov, Anastasiya I. Perina
Publikováno v:
Известия Томского политехнического университета: Инжиниринг георесурсов, Vol 335, Iss 8 (2024)
Relevance. The need to clean from pollution soils and water areas contaminated with oil and chemical industry wastes. Physico-chemical methods are one of the effective ways of cleaning, provided that sorbents are applied in time to collect contaminan
Externí odkaz:
https://doaj.org/article/8abe802760324660a9c7d32086fd13e5
Autor:
Fructuoso Barba, Alexander D. Korshunov, Michail N. Elinson, Belen Batanero, Olga O. Sokolova
Publikováno v:
Electrocatalysis. 9:602-607
The electrolysis of salicylaldehydes and 4-hydroxy-6-methyl-2H-pyran-2-one in an undivided cell in alcoholic media and in the presence of alkali metal halides results in rapid and efficient formation of the substituted 3-acetoacetylcoumarins in 85–
Publikováno v:
Heterocyclic Communications. 24:79-83
A fast (15 min) and efficient cascade reaction of salicylaldehydes and 1,3-dimethylbarbituric acid in the presence of p-TsOH as a catalyst furnishes substituted 5-(1,3-dimethyl-2,4-dioxo-1,3,4,5-tetrahydro-2H-chromeno[2,3-d]pyrimidin-5-yl)-1,3-dimeth
Autor:
Alexander D. Korshunov, Michail N. Elinson, Anatoly N. Vereshchagin, Tatiana A. Zaimovskaya, Mikhail P. Egorov
Publikováno v:
Monatshefte für Chemie - Chemical Monthly. 149:1069-1074
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-heterospirocyclopro
Autor:
Anatoly N. Vereshchagin, Mikhail P. Egorov, Alexander D. Korshunov, Fedor V. Ryzhkov, Michail N. Elinson
Publikováno v:
Heterocyclic Communications. 23:85-90
A new stereoselective cascade reaction of benzylidenecyanoacetates and 1,3-dimethylbarbituric acid by the action of bromine in the presence of a base into substituted (barbituric acid)-5-spirocyclopropanes is described. The yields are in the range of
Autor:
Anatoly N. Vereshchagin, Alexander D. Korshunov, Roman A. Novikov, Fedor V. Ryzhkov, Mikhail P. Egorov, Michail N. Elinson
Publikováno v:
Mendeleev Communications. 27:559-561
Sodium acetate catalyzed assembling of salicylaldehydes, malononitrile and 4-hydroxy-6-methylpyridin-2(1H)-one in small amount of ethanol gives rapidly (5 min) substituted 4-pyridinyl-2-amino-4H-chromenes in 82–99% yields. This novel domino reactio
Autor:
Alexander D. Korshunov, Evgeniya O. Dorofeeva, Mikhail P. Egorov, Anatoly N. Vereshchagin, Michail N. Elinson
Publikováno v:
Research on Chemical Intermediates. 42:2191-2200
The electrolysis of pyrazoline-5-ones and activated olefins in the presence of sodium bromide as mediator in alcohols in an undivided cell results in efficient formation of the substituted spirocyclopropylpyrazolones in 50–85 % yields. This novel e
Autor:
Sergey M. Kazakov, Dmitri O. Charkin, Arthur V. Urmanov, Alexey N. Kuznetsov, Igor V. Plokhikh, Alexander D. Korshunov
Publikováno v:
Journal of Alloys and Compounds. 585:644-649
Systematic studies of the LaOAgS-type compounds among alkaline earth – Zn/Cd/Mn fluoride pnictides revealed the existence of new representatives SrFMnP, SrFMnAs, SrFMnSb, SrFZnAs, SrFZnSb, BaFZnAs, BaFCdP, and BaFCdAs. Similar to rare-earth oxide c
Publikováno v:
ChemInform. 47
Bromine-assisted one-pot cascade cyclization of 3-(5-hydroxy-3-methylpyrazol-4-yl)-3-arylpropionitriles affords medicinally relevant spirocyclopropyl pyrazolones in 60–97% yields.
Publikováno v:
Mendeleev Communications. 26:19-20
Bromine-assisted one-pot cascade cyclization of 3-(5-hydroxy-3-methylpyrazol-4-yl)-3-arylpropionitriles affords medicinally relevant spirocyclopropyl pyrazolones in 60–97% yields.