The reaction of primary amines with boron halides. Part II. Arylamines. The effect of ortho-substitution: formation of di-B-halogenoborazoles
作者:R. K. Bartlett、H. S. Turner、R. J. Warne、M. A. Young、I. J. Lawrenson
DOI:10.1039/j19660000479
日期:——
The course of the thermal or base-promoted dehydrohalogenation of the 1 : 1 adducts of primary arylamines and boron trichloride or boron tribromide is profoundly affected by ortho-substitution in the benzene nucleus. On heating in solution the 1 : 1 adducts of boron trichloride and aniline or o-toluidine give excellent yields of the corresponding tri-B-chloroborazole, but the evolution of hydrogen