Lipase-promoted dynamic kinetic resolution of racemic β-hydroxyalkyl sulfones
摘要:
A series of racemic beta aryl-hydroxyalkyl sulfones have been successfully transformed into the corresponding optically active O-acetyl derivatives in high yields (up to 80%) with enantiomeric excesses more than 99% using a dynamic kinetic resolution procedure, in which a lipase-promoted kinetic resolution is combined with a concomitant ruthenium-catalysed racemization of the substrates. (c) 2005 Elsevier Ltd. All rights reserved.