New 3-azidoalka-1,3-dienylphosphonates were synthesized by a convenient and efficient method. These compounds are useful as intermediates in the preparation of 2-(diethoxyphosphoryl)-3-(3-phenyl-4,5-dihydroisoxazol-5-yl)-2H-azirines and 2-(diethoxyphosphoryl)-3-vinyl-2H-azirines.
allenes - azides - heterocycles - phosphorus