In this study, we propose heavy-metal-free reductivecoupling of arylacetylenes with benzothiazole sulfones. The reactions of alkyl or benzylic benzothiazole sulfones with arylacetylenes are successfully performed in the presence of Hantzsch esters and K2CO3 under visible-light irradiation to afford 1,2-disubstituted alkenes in moderate to good yields, with Z-isomer as the major product. The utility
在这项研究中,我们提出了芳基乙炔与苯并噻唑砜的无重金属还原偶联。烷基或苄型苯并噻唑砜与芳基乙炔在 Hantzsch 酯和 K 2 CO 3存在下在可见光照射下成功进行反应,以中等至良好的收率得到 1,2-二取代烯烃,其中Z异构体为主要产品。该方案的实用性扩展到使用氘化 Hantzsch 酯的 α-氘代偶联,为相应的烯烃提供高氘掺入量。