CC–Nalkyl2, S–CCSiMe3, S–CC–Me) with BuLi·ButOK, followed by the successive addition of carbon disulphide, t-butyl alcohol, and hexamethylphosphoric triamide gives thieno[2,3,-b]thiophene, thieno-1,4-dithi-ine, and some of their derivatives in reasonable yields.
的
金属化
乙炔的MeC CR(R = C CSiMe 3,C
CME,C C-SME,C C-N-烷基2,S-C CSiMe 3,S-C
CME)用BuLi·卜吨行,随后通过连续加入
二硫化碳,
叔丁醇和六甲基
磷酸三酰胺,以合理的收率得到
噻吩并[2,3,-b ]
噻吩,
噻吩并1,4-二
硫辛及其衍
生物。