Copper-catalysed direct difluoromethylselenolation of aryl boronic acids with Se-(difluoromethyl) 4-methylbenzenesulfonoselenoate
In this study, we developed the first copper-catalysed direct difluoromethylselenolation of aryl boronic acids using Se-(difluoromethyl) 4-methylbenzenesulfonoselenoate as a difluoromethylselenolation reagent. Owing to the cheap and readily accessible reagents, broad substrate scope, and mild reaction conditions, this is an alternative and practical strategy for the synthesis of aryl difluoromethylselenylether.
Metal-Free Difluoromethylselenolation of Arylamines under Visible-Light Photocatalysis
A novel visible-light photocatalytic difluoromethylselenolation of aryl amines via in situ generation of aryldiazonium salts was achieved using Se-(difluoromethyl) 4-methylbenzenesulfonoselenoate, which was synthesized for the first time. The reagent is readily accessible and shelf-stable. The metal-free reaction conditions and the broad substrate scope provide a green protocol for the efficient and rapid introduction of the difluoromethylselenylether group.