Nitrogen Heterocycles from Carbene Complexes and Alkenyl Isocyanides

Abstract

Azafulvene and azetidinylidene complexes such as 1 and 2, respectively, are formed from carbene complexes and two equivalents of alkenyl isocyanide, the pyrrolopyridine complex 3 is accessible from 1. Compound 2 undergoes oxidative cleavage to give the β-lactam 4.