Pd-Catalyzed Asymmetric Allylic Alkylation. A Short Route to the Cyclopentyl Core of Viridenomycin
作者:Barry M. Trost、Chunhui Jiang
DOI:10.1021/ol0343515
日期:2003.5.1
palladium-catalyzed asymmetric allylic alkylation effects a dynamic kinetic asymmetric transformation of racemic isoprene monoepoxide and a surrogate for Nazarov's reagent in which a quaternary center is created with exellent ee. The resultant adduct allows easy access to a substrate for ring-closing metathesis to form a cyclopentenone and sets the stage for an 11-step synthesis of the cyclopentyl core