The reaction of aryldichloroborane with organic azides: preparation of N-substituted derivatives of 1,2-dihydro-1-aza-2-borabenzene
Abstract
The reaction between phenyldichloroborane and an α,β-unsaturated o-aryl azide at room temperature yielded the corresponding 1,2-dihydro-N-phenyl-1-azo-2-borabenzenes quantitatively via 1,6 cyclization of the intermediate N-phenylaminodichloroboranes resulting from a 1,2-shift of the phenyl group.