Regioselective and Stepwise [8 + 2] Cycloaddition Reaction between Alkynyl–Fischer Carbene Complexes and Tropothione

Alexandra R. Rivero, Israel Fernández, and Miguel A. Sierra

J. Org. Chem., 2012, 77 (15), pp 6648–6652

DOI: 10.1021/jo3011304