作者:Małgorzata Nowak、Krystian Pluta、Kinga Suwińska、Leo Straver
DOI:10.1002/jhet.5570440307
日期:2007.5
Reactions of 2,2′-dichloro-3,3′-diquinolinyl sulfide 1 with ammonia derivatives and various primary alkylamines and arylamines proceeded as a thiazine ring closure to form linear annulated pentacyclic 6H-diquinothiazine 2H and 6-substituted derivatives 2 with alkyl, alkylaryl, aryl and heteroaryl substituents in moderate to good yields. Reaction with 2-chloroethylamine did not stop at the formation
2,2'-二氯-3,3'-二喹啉基硫化物1与氨衍生物以及各种伯烷基胺和芳基胺的反应以噻嗪环封闭方式进行,形成线性环化的五环6 H-二喹噻嗪2H和6-取代的衍生物2与烷基,烷基芳基,芳基和杂芳基取代基的产率中等至良好。与2-氯乙胺的反应并未停止于半芥末衍生物2k的形成,而是生成了亚乙基二喹硫唑鎓盐11。6 ħ -Diquinothiazine 2H是Ñ烷基化和Ñ -arylated,得到6-取代的衍生物2。关键的底物1是通过1,4-二硫杂环丁烷的开环和进一步的转化从其他杂戊烯3和4 获得的。对-硝基苯基二喹噻嗪2i的X射线分析显示出意外的平面噻嗪环。