Pd(II)-Catalyzed Enantioselective Desymmetrization of Polycyclic Cyclohexenediones: Conjugate Addition versus Oxidative Heck

Autor: Filipe Vilela, Ai-Lan Lee, Claire J. C. Lamb
Rok vydání: 2019
Předmět:
Zdroj: Organic Letters. 21:8689-8694
ISSN: 1523-7052
1523-7060
DOI: 10.1021/acs.orglett.9b03293
Popis: Pd(II)-catalyzed desymmetrization of polycyclic cyclohexenediones has been achieved with high enantio- and diastereoselectivities. Up to five contiguous stereocenters are desymmetrized, while simultaneously, an additional stereocenter is created by the enantioselective conjugate addition. Surprisingly, the conjugate addition products dominate even under typical oxidative Heck conditions, and these observations may provide some insight into the competition between the two related reactions.
Databáze: OpenAIRE