1,3,4-Thiadiazole, 1,3,4-thiadiazine, 1,3,6-thiadiazepane and quinoxaline derivatives from symmetrical hydrazine-1,2-dicarbothioamide as well as N, N″-ethane-1,2-diylbis(thiourea) derivatives
作者:Alaa A. Hassan、Aboul-Fetouh E. Mourad、Kamal M. El-Shaieb、Ashraf H. Abou-Zied
DOI:10.1002/jhet.5570430232
日期:2006.3
Reactions of N,N′-disubstituted hydrazine-1,2-carbothioamides 8a-c and substituted N,N″-ethane-1,2-diylbis(thioureas) 9a-c with 2,3,5,6-tetrachloro-1,4-benzoquinone (chloranil, 10a) and 2,3,5,6-tetrabromo-1,4-benzoquinone (bromanil, 10b) to form N,N′-disubstituted 1,3,4-thiadiazole-2,5-diamines 11a-c, substituted 3-amino-6,7-dichloro-2,3-dihydro-1H-4,2,1-benzothiadiazine-5,8-diones 12a-c, 2,3,7,8-
N,N′-二取代肼-1,2-碳硫酰胺8a-c和取代的N,N''-乙烷-1,2-二基双(硫脲)9a-c与2,3,5,6-四氯-1的反应,4-苯醌(氯腈,10a)和2,3,5,6-四溴-1,4-苯醌(溴,10b)形成N,N'-二取代的1,3,4-噻二唑-2,5-二胺11a-c,取代的3-氨基-6,7-二氯-2,3-二氢-1 H -4,2,1-苯并噻二嗪-5,8-二酮12a-c,2,3,7,8-取代的5,6,8-三卤代-7-氧代-3,7-二氢喹喔啉-2 H-碳硫代酰胺14a-c,15a-c和7-取代的亚氨基四卤代蒽1,4,6,9-四元酮13a,b -1,3,6-噻二氮-2-硫酮报告了16a-c。