Halogen Promoted Desulfurative Cleavage of Cyclopropylmethyl Thioethers and Amination of the Formed Cyclopropylcarbinyl Cations
作者:Pablo Marín‐Díaz、Clara Martínez‐Núñez、Roberto Sanz、Samuel Suárez‐Pantiga
DOI:10.1002/ejoc.202400147
日期:——
Cyclopropylmethyl sulfides react with N-fluorosulfonimide (NFSI) or molecular iodine, enabling C−S cleavage to generate cyclopropylcarbinyl cations, which evolve through cyclopropane ring-opening reactions into homoallyl cations suitable to react with nucleophiles present in the reaction media. This desulfurative cleavage of cyclopropylmethyl thioethers under non-acidic conditions facilitates homoallylation
环丙基甲基硫醚与 N-氟磺酰亚胺 (NFSI) 或分子碘反应,使 C−S 裂解生成环丙基羰基阳离子,该阳离子通过环丙烷开环反应演变成适合与反应介质中存在的亲核试剂反应的高烯丙基阳离子。这种环丙基甲基硫醚在非酸性条件下的脱硫裂解促进了基于 N 的亲核试剂(例如烷基或芳基胺以及磺酰亚胺)的同烯丙基化,根据亲核试剂的不同,可通过一锅法一步或两步进行。