Anomalous Intramolecular C−H Insertion Reactions of Rhodium Carbenoids: Factors Influencing the Reaction Course and Mechanistic Implications
作者:J. Stephen Clark、Alexander G. Dossetter、Yung-Sing Wong、Robert J. Townsend、William G. Whittingham、C. Adam Russell
DOI:10.1021/jo049900e
日期:2004.5.1
the expected 3(2H)-furanones formed by conventional carbenoidC−Hinsertion. These acetals are the favored C−Hinsertion products in certain circumstances and particularly in cases where carbenoid generation is effected using an electron-deficient rhodium complex. Experiments with simple deuterium labeled substrates reveal that anomalous C−Hinsertion products arise by a mechanism that is distinct from