ortho-Dialkylamino arylboranes as efficient reagents for difluorocarbene trapping†
Abstract
Compounds bearing ortho-oriented dialkylamino and boryl groups can serve as efficient reagents to trap difluorocarbene leading to zwitterionic ammonium borates featuring N-CF2-B fragments. The reagents are shelf-stable and can be used as mechanistic probes for reactions proceeding via difluorocarbene.