4-Mercapto-1,2-dithiole-3-thiones are easily prepared by deprotonation of terminal alkynes followed by sequential treatment with carbon disulfide, sulfur and acid; addition of alkylating agents at the last stage gives 4-alkylthio-1,2-dithiole-3-thiones instead.
通过使末端
炔烃脱质子化,然后依次用
二硫化碳,
硫和酸进行依次处理,可以轻松制备4-巯基-1,2-二
硫代3-
硫酮。在最后阶段加入烷基化剂可得到4-烷
硫基1,2-二
硫基-3-
硫酮。