Domino Reactions Initiated by Copper‐Catalyzed Aryl‐I Bond Thiolation For the Switchable Synthesis of 2,3‐Dihydrobenzothiazinones and Benzoisothiazolones
作者:Jin Xiong、Guofeng Zhong、Yunyun Liu
DOI:10.1002/adsc.201801221
日期:2019.2
3‐dihydro‐4H‐benzo[e][1,3]thiazin‐4‐ones (2,3‐dihydrobenzothiazinones) are accomplished via copper‐catalyzed aryl C−I thiolation and subsequent N‐, S‐hetero ring formation. In addition, the in situ aryl C−I bond thiolation is also employed for the switchable synthesis of benzo[d]isothiazol‐3(2H)‐ones (benzoisothiazolones) by subjecting o‐iodobenzamides, elemental sulfur to the copper‐catalyzed condition with
完成了邻碘苯甲酰胺,元素硫和二氯甲烷(DCM)的三组分反应,从而提供了2,3-二氢-4 H-苯并[e] [1,3]噻嗪-4-酮(2,3-二氢苯并噻嗪酮)通过铜催化的芳基C–I硫醇化和随后的N–,S–杂环形成。此外,原位芳基C-1键硫醇化还可用于邻位碘碘苯甲酰胺,元素硫在铜催化条件下的可切换合成苯并[d]异噻唑-3(2 H)-酮(苯并异噻唑酮)用微波照射。