Cobalt-catalyzed carboxylation of aryl and vinyl chlorides with CO<sub>2</sub>
作者:Yanwei Wang、Xiaomei Jiang、Baiquan Wang
DOI:10.1039/d0cc06451c
日期:——
The transition-metal-catalyzed carboxylation of aryl and vinylchlorides with CO2 is rarely studied, and has been achieved only with a Ni catalyst or combination of palladium and photoredox. In this work, the cobalt-catalyzed carboxylation of aryl and vinylchlorides and bromides with CO2 has been developed. These transformations proceed under mild conditions and exhibit a broad substrate scope, affording
cobalt-catalyzed reductive carboxylation reaction of alkenyl trifluoromethanesulfonates (triflates) has been developed. By employing Mn powder as a reducing reagent under 1 atm pressure of CO2 at room temperature, diverse alkenyl triflates can be converted to the corresponding α,β-unsaturated carboxylic acids. Moreover, the carboxylation of stericallyhindered aryl triflates proceeds smoothly in the presence of