Fused polycyclic nitrogen-containing heterocycles 15.* 1,3-bis(4-hydroxy-4-methoxycarbonyl-3,5-diphenylthiazolidin-2-ylideneamino)-benzene in the synthesis of thiazolo[3,4-a]quinoxalines |
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| Authors: | V A Mamedov E A Khafizova E A Berdnikov Ya A Levin I Kh Rizvanov I Bauer W D Habicher |
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| Institution: | (1) A. E. Arbuzov Institute of Organic and Physical Chemistry, Kazan Research Center of the Russian Academy of Sciences, 8 ul. Akad. Arbuzova, 420088 Kazan, Russian Federation;(2) Kazan State University, 18 ul. Kremlevskaya, 420008 Kazan, Russian Federation;(3) Institute of Organic Chemistry, Dresden University of Technology, 13 Mommsenstrasse, D-01062 Dresden, Germany |
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| Abstract: | Reactions of methyl chloro(phenyl)pyruvate with 1,3-bis(phenylthioureido)benzene easily afforded 1,3-bis(4-hydroxy-4-methoxycarbonyl-3,5-diphenylthiazolidin-2-ylideneamino)benzene.
Reactions of the latter with 1,2-phenylenediamines gave various derivatives of thiazolo3,4-a]quinoxalines, including their bisanalogs.
Published in Russian in Izvestiya Akademii Nauk. Seriya Khimicheskaya, No. 9, pp. 1611–1617, September, 2006. |
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| Keywords: | thiazolidines thiazolo[3 4-a]quinoxalines tautomerism Hantzsch reaction 1 2-phenylenediamines |
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