Site-selective C(sp3)–H thiolation using thiosulfonates has been achieved using the decatungstate anion as a photocatalyst. Using the protocol, a variety of thiolated compounds were synthesized in good yields. The transformation consists of a cascade of double SH2 reactions, HAT and ArS group transfer, and PCET (proton-coupled electron transfer) of the leaving arylsulfonyl radical to arylsulfinic acid
使用十钨酸盐阴离子作为光催化剂,实现了使用硫代磺酸盐的位点选择性 C(sp 3 )–H 硫醇化。使用该方案,以良好的产率合成了多种硫醇化化合物。该转化由一系列双 S H 2 反应、HAT 和 ArS 基团转移以及离开芳基磺酰基到芳基亚磺酸的 PCET(质子耦合电子转移)组成,从而使催化剂 W 10 O 32 4−成为恢复了。