On the Reactivity of α-(Triphenylphosphoranylidene)-benzylphenylketene with Nitrogen Compounds. Synthetic and Mechanistic Implications

Abstract

The reactivity of α-(triphenylphosphoranylidene)-benzylphenylketene, a stabilized phosphorus ylide derived from diphenylcyclopropenone, toward nitrogen compounds was investigated. Particularly, the reaction of diethyl azodicarboxylate with α-(triphenylphosphoranylidene)- benzylphenylketene provides a new route to polysubstituted N-acyl carbamates