Heterocycles with a pyrido [3, 2-e]-1, 3-selenazine and pyrido [3, 4-e]-1, 3-selenazine ring systems

P Kristian, D Koščík, J Gonda

文献索引：Kristian, Pavol; Koscik, Dusan; Gonda, Jozef Collection of Czechoslovak Chemical Communications, 1983 , vol. 48, # 12 p. 3567 - 3574

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被引用次数: 10

摘要

Abstract 2-Chloronicotinoyl isoselenocyanate (IIa) and 2, 6-dimethyl-4-chloronicotinoyl isoselenocyanate (IIb) react with arylamines to give 2-arylimino-4-oxopyrido [3, 2-e]-1, 3- selenazines IV and 2-arylimino-5, 7-dimethyl-4-oxopyrido [3, 4-e]-1, 3-selenazines V. A reaction of IIa, b with sodium hydrogen sulfide and hydroselenide afford the respective 2-thio- and 2-seleno-4-oxopyrido-1, 3-selenazines VI and VII. Structure of these new types of ...