Rhodium-catalyzed hydroacylation of 4-pentenal: Calculation of the reaction pathway

ORGN 79

Andrew L. Sargent and Andrew T. Morehead Jr., moreheada@mail.ecu.edu. Department of Chemistry, East Carolina University, Greenville, NC 27858
High level ab initio calculations have been carried out to elucidate the reaction pathway of the rhodium-catalyzed hydroacylation reaction of 4-pentenal (Bosnich and Fairlie, Organometallics 1988, 7, 946-954). Several surprising results include the discovery of two distinct pathways, of which the slower pathway leads to product, and that agostic interactions with the phenyls of the dppe ligand play an important role during the course of the reaction.