One-pot three-component sulfone synthesis exploiting palladium-catalysed aryl halide aminosulfonylation
作者:Charlotte S. Richards-Taylor、David C. Blakemore、Michael C. Willis
DOI:10.1039/c3sc52332b
日期:——
electrophilic coupling partner, such as a benzylic, allylic or alkyl halide, an electron-poor arene, or a cyclic epoxide, to provide the corresponding sulfone products in good to excellent yields. The mild reaction conditions and use of commercially available reaction components allows the easy preparation of a broad range of sulfones featuring a variety of functional groups. The process obviates the need
钯催化的氨基磺酰化工艺被用作一锅三组分砜合成中的关键步骤。该方法将芳基,杂芳基和烯基碘化物与磺酰基单元和亲电偶联片段结合。磺酰基单元以氨基磺酰胺的形式被递送,其然后用作掩蔽的亚磺酸盐。将亚磺酸盐原位合并用亲电偶合剂,例如苄基,烯丙基或烷基卤,贫电子芳烃或环状环氧化物,以良好至优异的产率提供相应的砜产物。温和的反应条件和可商购的反应组分的使用使得容易制备具有各种官能团的多种砜。该方法消除了使用硫醇原料和氧化操作的需要。