Synthesis of novel thiazole and pyrrolothiadiazine derivatives from aldehyde thiosemicarbazones
作者:Mohsen A.-M. Gomaa、Alaa A. Hassan、Hamdy S. Shehatta
DOI:10.1002/hc.20198
日期:2006.4
Substituted thiosemicarbazones 7a–e reacted with ethenetetracarbonitrile (TCNE) in ethyl acetate with formation of 5-amino-3-(substituted ben-zylidene-amino)-2-phenylimino-2,3-dihydrothiazole-4-carbonitrile 8a–e 2-amino-6-phenyl-imino-1,6- dihydropyrrolo[1,3,4]thiadiazine-3-carbonitrile 9, and phenyl-(5-substituted phenyl}-3H-[1,3,4]thiadiazole-2-ylidene)amines 10a–e. Rationales for the observed conversations
取代的缩氨基硫脲 7a-e 在乙酸乙酯中与乙烯四甲腈 (TCNE) 反应,形成 5-amino-3-(取代的苯亚甲基-氨基)-2-苯基亚氨基-2,3-二氢噻唑-4-甲腈 8a-e 2-氨基-6-苯基-亚氨基-1,6-二氢吡咯并[1,3,4]噻二嗪-3-甲腈9和苯基-(5-取代苯基}-3H-[1,3,4]噻二唑-2 -亚基)胺10a-e。给出了观察到的对话的基本原理。© 2006 Wiley Periodicals, Inc. 杂原子化学 17:261–266, 2006; 在线发表于 Wiley InterScience (www.interscience.wiley.com)。DOI 10.1002/hc.20198