Copper-catalyzed amination of phenylboronic acids with benzofurazan 1-oxides

CuCl/Phen can catalyze the C-N coupling between arylboronic acid and benzofurazan 1-oxide. This reaction occurred under mild and redox-neutral conditions with benzofurazan 1-oxide as an aminating reagent via ring scission, leading to a bifunctionalized aminonitrobenzene.