Synthesis of Thiadiazole, Dithietane, and Imine Derivatives of the [1,2]Dithiolo[1,4]thiazine Ring System
作者:Susana Barriga、Pedro Fuertes、Carlos F. Marcos、Daniel Miguel、Oleg A. Rakitin、Charles W. Rees、Tomás Torroba
DOI:10.1021/jo010368u
日期:2001.8.1
heterocyclics by cycloaddition reactions to the thioketo group of readily available tricyclic 1,2-dithiole-3-thiones. Thus treatment of bis[1,2]dithiolo[1,4]thiazine ketothione 1 with diaryl nitrile imines generated from hydrazonoyl chlorides 2a-g gave [1,3,4]thiadiazolylidenyl[1,2]dithiolo[1,4]thiazines 4a-g in high yield. Compounds 4a-f, bearing the same substituents in both aryl groups, were stable
我们报告通过环加成反应容易获得的三环1,2-二硫代3-硫酮的硫酮基合成了一些新的多硫-氮杂环。因此用由酰氯酰氯2a-g产生的二芳基腈亚胺处理双[1,2]二硫代[1,4]噻嗪酮噻酮1,得到[1,3,4]噻二唑基[1,2]二硫代[1,4]噻嗪4a-g高产。在两个芳基上均带有相同取代基的化合物4a-f稳定,但在碳上具有对硝基苯基的类似4g,h给出的双[1,2]二硫代[1,4]噻嗪二酮9色谱过程中环还原和水解。用乙氧基羰基叠氮化物11处理1,双[1,2]二硫代吡咯酮酮13和二硫酮12分别得到亚胺12和15和双亚胺16,通过保留1,2-二硫环的初始环加合物的另一种断裂方式。1与TosMIC的反应得到亚氨基-1,3-二硫杂环丁烷17。