A Study on Rhodium-Vinylallene Complexes Leading to a New Reaction, Rhodium-Catalyzed Carbonylative [4 +1] Cycloaddition

摘要

The coordination of unsaturated organic molecules to transition metals has been studied intensively both experimentally and theoretically; η~4 complexes of 1,3-dienes constitute an important class. Conjugated dienes that are extended with a cumulateddouble bond, like vinylketenes (1, X = O). also form η~4 complexes having interesting structures and reactivities.