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The reactivity of &#945;-(triphenylphosphoranylidene)-benzylphenylketene, a stabilized phosphorus ylide derived from diphenylcyclopropenone, toward nitrogen compounds was investigated. Particularly, the reaction of diethyl azodicarboxylate with &#945;-(triphenylphosphoranylidene)-benzylphenylketene provides a new route to polysubstituted N-acyl carbamates.A reatividade do ilídeo de fósforo estabilizado derivado da difenilciclopropenona, o &#945;-(trifenilfosforanilideno)-benzilfenilceteno, frente a compostos nitrogenados polifuncionalizados foi investigada. Em particular, a reação do &#945;-(trifenilfosforanilideno)-benzilfenilceteno com o azodicarboxilato de etila pode se constituir como um novo método de síntese de N-acil-carbamatos densamente substituidos

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