Enantioselective organocatalytic Michael additions to acrylic acid derivatives: generation of all-carbon quaternary stereocentres
作者:Caroline L. Rigby、Darren J. Dixon
DOI:10.1039/b805233f
日期:——
and N-acryloyl pyrrole have been identified as effective electrophiles in the enantioselectiveMichaeladdition reaction with beta-keto ester pro-nucleophiles catalysed by a cinchona alkaloid derived bifunctional organocatalyst; enantiomeric excesses of up to 98% and yields of up to 96% can be obtained for a range of Michael acceptors and pro-nucleophiles.