Ethenetetracarbonitrile and Heterocyclization of Symmetrical Dithiobiurea as well as Thioureidoethylthiourea Derivatives
作者:Alaa A. Hassan、Aboul-Fetouh E. Mourad、Kamal M. El-Shaieb、Ashraf H. Abou-Zied
DOI:10.1515/znb-2004-0807
日期:2004.8.1
Abstract N,N’-Disubstituted hydrazinecarbothioamides 6a - c and substituted thioureidoethylthioureas 12a - c react with ethenetetracarbonitrile (TCNE) in ethyl acetate or chlorobenzene to form the derivatives of pyrazole 7, 8; thiadiazole 10, 11 thiadiazepine 9, thiadiazepane 13, imidazolidine 14 and diazepine 15.
摘要 N,N'-二取代肼碳硫酰胺6a-c和取代硫脲基乙硫脲12a-c在乙酸乙酯或氯苯中与乙烯四甲腈(TCNE)反应生成吡唑7、8衍生物;噻二唑 10、11 噻二氮杂 9、噻二氮杂 13、咪唑烷 14 和二氮杂 15。