General synthesis of 2,5-dihydrothiophenes (3-thiolenes) from diketo sulfides
作者:Juzo Nakayama、Haruki Machida、Masamatsu Hoshino
DOI:10.1016/s0040-4039(00)98357-6
日期:1985.1
The intramolecular reductive coupling reaction of easily accessible diketo sulfides by a low-valenttitaniumreagent [prepared fromtitanium(IV) chloride and zinc powder] provides an efficient general synthesis of 2,5-dihydrothiophenes.