Iridium-Catalyzed Regioselective and Enantioselective Allylation of Trimethylsiloxyfuran
作者:Wenyong Chen、John F. Hartwig
DOI:10.1021/ja306850b
日期:2012.9.19
We report the regio- and enantioselectiveallylation of an ester enolate, trimethylsiloxyfuran. This enolate reacts at the 3-position with linear aromatic allylic carbonates or aliphatic allylic benzoates to form the branched substitution products in the presence of a metallacyclic iridiumcatalyst. This process provides access to synthetically important 3-substituted butenolides in enantioenriched