Synthesis of Novel Exocyclic Allenes with a Norbornene Fragment

Abstract

N-Substituted amino acids with a norbornene fragment were synthesized by the direct fusion of amino acids with endic anhydride at 150°C. The synthesized compounds were used for one-pot synthesis of novel stable allenes with an exocyclic cumulene group derived from l-phenyl-3-(triphenylphosphoranylidene)-pyrrolidine-2,5-dione has been carried out.