CHIRAL ZIRCONIMU CATALYST AND ANTI-SELECTIVE ASYMMETRIC ALDOL REACTION METHOD

摘要

PROBLEM TO BE SOLVED: To carry out an anti-selective asymmetric aldol reaction at a high efficiency under moderate conditions.;SOLUTION: A reaction of a silyl enol ether with an aldehyde is carried out using a chiral zirconium catalyst containing a zirconium tetraalkoxide, a compound defined by the formula [Chem. 1] (wherein X similarly or dissimilarly denotes hydrogen, bromine, iodine, or a perfluoroalkyl), a primary alcohol, and water.;COPYRIGHT: (C)2004,JPO