1. Recent reviews on the Pauson−Khand reaction: (a) Geis, O.; Schmalz, H.G.Angew.Chem.Int. Ed. Engl.1998,37, 911−914. (b) Ingate, S. T.; Marco-Contelles, J.Org. Proc.Prep.Int.1998,123−142. (c) Shore, N. E. InComprehensive Organometallic Chemistry II; Hegedus, L. S., Ed.; Pergamon Press: 1995; Vol. 12, pp 703−739.
2. Promoters for the (alkyne) hexacarbonyldicobalt-based cyclopentenone synthesis