Polyfused nitrogen-containing heterocycles 23. Methyl 4-hydroxy-3-phenyl-5-phenyl (alkyl)-2-phenyliminoselenazolidine-4-carboxylates and selenazolo [3, 4-a] …
…, AT Gubaidullin, TN Beschastnova, IK Rizvanov…
Index: Mamedov; Zhukova; Gubaidullin; Beschastnova; I. Kh. Rizvanov; Ya. A. Levin; Litvinov Russian Chemical Bulletin, 2009 , vol. 58, # 6 p. 1294 - 1302
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Abstract
Abstract Condensation of methyl phenyl (alkyl) halopyrotartrates with N, N′- diphenylselenourea leads to the formation of methyl 4-hydroxy-3-phenyl-5-phenyl (alkyl)-2- phenyliminoselenazolidine-4-carboxylates, which undergo reaction with 1, 2- phenylenediamines to give selenazolo-[3, 4-a] quinoxalin-4 (5 H)-ones.
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