<i>S</i>-Trifluoromethyl thioesters as bifunctional reagents for acyl-trifluoromethylthiolation of alkenes and 1,3-enynes <i>via</i> photoredox/copper dual catalysis
作者:Zhong Zhang、Yang Tian、Xiaowei Li、Zemin Wang、Ruihua Liu、Ping Chen、Xiangqian Li、Jiajia Dai、Dayong Shi
DOI:10.1039/d3gc00266g
日期:——
construction of various vicinal functional groups. Introducing acyl and trifluoromethylthio groups into compounds simultaneously still remains a challenge. Using S-trifluoromethyl thioesters as bifunctional reagents, we developed photoredox/copper dual-catalyzed 1,2-acyl-trifluoromethylthiolation of alkenes and 1,4-acyl-trifluoromethylthiolation of 1,3-enynes. β-Trifluoromethylthiolated ketones and δ-tri
不饱和化合物的双官能化为构建各种邻位官能团提供了在步骤和原子经济方面的巨大优势。同时将酰基和三氟甲硫基引入化合物中仍然是一个挑战。使用S-三氟甲基硫酯作为双功能试剂,我们开发了光氧化还原/铜双催化的烯烃的 1,2-酰基-三氟甲基硫醇化和 1,3-烯炔的 1,4-酰基-三氟甲基硫醇化。β-三氟甲基硫醇化酮和 δ-三氟甲基硫醇化 β-丙二烯基酮可以中等到良好的产率获得,具有广泛的官能团相容性。更广泛地说,通过将 S-三氟甲基硫酯与其他自由基前体结合,可以分别实现烯烃的三氟甲硫基-氟烷基化和三氟甲硫基-芳基化。