A palladium-catalyzed thiocarbonylation of styrene derivatives is reported for the first time. The combination of thiols as nucleophiles and a bidentate ligand ensures a unique reaction outcome with high regioselectivity toward the more valuable branched isomer and new reactivity. The ambient reaction conditions (temperature, catalyst loading) and the use of a CO surrogate render this transformation
首次报道了钯催化的苯乙烯衍生物的硫代羰基化。作为亲核试剂的硫醇和双齿配体的组合确保了独特的反应结果,对更有价值的支链异构体和新的反应性具有高区域选择性。环境反应条件(温度、催化剂负载)和 CO 替代物的使用使这种转化成为从可用原料合成硫酯的有用方法。该系统可以容忍芳烃和硫醇取代基上的各种官能团。值得注意的是,具有挑战性的邻位取代苯乙烯以前所未有的高区域选择性转化。