Visible-Light-Induced Reductive Coupling of Arylacetylenes with Benzothiazole Sulfones
作者:Tetsuya Sengoku、Haruka Iwama、Takuma Shimotori、Keisuke Fujimoto、Toshiyasu Inuzuka、Koki Matsune、Hidemi Yoda
DOI:10.1021/acs.joc.3c01554
日期:2023.9.1
In this study, we propose heavy-metal-free reductive coupling 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。