Patent ID: 6525210
Filing Date: 2003-02-25
Classification: B01J,C07B,C07C,C07D,C07F

Abstract:
A chiral ligand selected from the group consisting of compounds represented by A and its enantiomer: wherein the bridge group is selected from the group consisting of: (CH2)nW(CH2)m wherein n and m are independently an integer ranging from 1 to 8 and W, wherein W is a divalent group selected from the group consisting of: ferrocene, and a substituted derivative thereof; wherein each substituent in said substituted derivative is selected from the group consisting of: aryl, alkyl having 1-8 carbon atoms, F, Cl, Br, I, COOR, SO3R, PR3R2, OR, SR, PR2, AsR2, SbR2, aryloxyl, nitro, NR2, vinyl, substituted vinyl and a combination thereof, wherein each R is independently selected from the group consisting of: hydrogen, alkyl, aryl, alkaryl and aralkyl; wherein each X is independently selected from the group consisting of: hydrogen, halide, alkyl, aryl, alkoxy, silane, carboxylate and amide.