Carl R. Johnson,* Joseph P. Adams, Matthew P. Braun and C. 8. W. Senanayake Department of Chemistry, Wayne State University, Detroit MI 48202 ... Summary: a-lodoenones undergo Pd-catalyzed coupling with alkenyl- and at-y/- ttibutylstannanes providing an efficient route to the cortesponding a-substituted enones. ... A procedure for the facile introduction of carbon functionality at the a-position of a$- enones would have significant utility in synthesis.