Catalytic Enantioselective Friedel-Crafts Alkylation of Indoles with Fumarate Derivatives in the Presence of Chiral Palladium Complexes
作者:Dae Kim、Hyun Lee
DOI:10.1055/s-0031-1290424
日期:2012.7
The catalyticenantioselective Friedel–Crafts alkylation reaction promoted by chiral palladium complexes is described. The treatment of indoles with fumarate derivatives under the mild reaction conditions afforded the corresponding Friedel–Crafts alkylation adducts with high enantioselectivities (up to 91% ee).
Catalytic enantioselective conjugate addition of aromatic amines to fumarate derivatives: asymmetric synthesis of aspartic acid derivatives
作者:Seung Hee Kang、Young Ku Kang、Dae Young Kim
DOI:10.1016/j.tet.2009.05.037
日期:2009.7
The catalytic enantioselective conjugateaddition of aromaticamines to fumarate derivatives promoted by chiral palladium complexes is described. Treatment of aniline derivatives with fumaryl pyrrolidinone as Michael acceptor under mild reaction conditions afforded the corresponding chiral aspartic acidderivatives with excellent enantiomeric excesses (83–96% ee).