摘要:
The 1,2- and 1,3-monoazabisylides (5 and 11, respectively) were prepared in situ by the reactions of 1-[[(triphenylphosphorylidene)amino]methyl]benzotriazole (betmip, 2) with diethyl phosphite anion and methylenetriphenylphosphorane, respectively, followed by treatment with butyllithium. The synthetic versatility of the new reagents 5 and 11 is illustrated by convenient methods for the preparation of isoquinoline, 2-azabutadienes,2,3-diarylpyrroles, and 2-(3H)-benzazepine.