[4 + 1] Cycloaddition of N-Heterocyclic
Carbenes with Vinyl Isocyanates
James H. Rigby* andZhengqiang Wang
Department of Chemistry, Wayne State University, Detroit, Michigan 48202-3489
jhr@ chem.wayne.edu
Received September 18, 2002
Abstract:
N-Heterocyclic carbenes have been found to undergo [4 + 1] cycloaddition with various vinyl isocyanates to afford functionalized hydroindolone
products.