Patent ID: 7153809

Claim:
A catalyst prepared by a process comprising: contacting a transition metal, a salt thereof, or a complex thereof, and a chiral ligand represented by the following formula or its enantiomer: wherein X is a divalent group selected from the group consisting of: Z, Z-(CR 4 R 5 ) n , (CR 4 R 5 ) n -Z-(CR 4 R 5 ) n , (CR 4 R 5 ) n , CH 2 CH(OR′)CH(OR′), CH2CH(OH)CH(OH), CH2CH(OCR′2O)CH, CH2CH(OalkylO)CH, CH2CH(OCHR′O)CH, CH2(C6H4), CH2(Ar), CH2(hetereoaryl), arylene, substituted arylene, CH2(biaryl), CH2(ferrocene), divalent aryl, 1,2-divalent phenyl (ortho-phenylene), 2,2′-divalent-1,1′-biphenyl, 2,2′-divalent-1,1′-binaphthyl, divalent hetereoaryl, divalent ferrocene, SiR′ 2 , PR′, NR 6 and group represented by the formula: wherein each n is independently an integer from 1 to 6; wherein Z is selected from the group consisting of: O, S, —COO—, —CO—, O—(CR 4 R 5 ) n —O, CH 2 (C 6 H 4 ), CH 2 (Ar), CH 2 (hetereoaryl), C 5 H 3 N, divalent aryl, 1,2-divalent phenyl (ortho-phenylene), 2,2′-divalent-1,1′-biphenyl, 2,2′-divalent-1,1′-binaphthyl, divalent hetereoaryl, divalent ferrocene, SiR′ 2 , PR′ and NR 6 wherein each of R′ and R 6 is independently selected from the group consisting of: hydrogen, alkyl, substituted alkyl, aryl, substituted aryl, hydroxy, alkoxy, aryloxy, acyl and alkoxycarbonyl; wherein E is selected from the group consisting of: PR′ 2 , PR′R″, o-substituted pyridine, oxazoline, chiral oxazoline, CH 2 (chiral oxazoline), CR′2(chiral oxazoline), CH 2 PR′ 2 , CH 2 (o-substituted pyridine), SiR′ 3 , CR′ 2 OH and a group represented by the formula: wherein Y is selected from the group consisting of: a bond, (CR 4 R 5 ) m , Z, Z-(CR 4 R 5 ) m and (CR 4 R 5 ) m -Z-(CR 4 R 5 ) m ; wherein each m is independently an integer from 0 to 3; wherein each R, R′, R″, R 4 and R 5 is independently selected from the group consisting of: hydrogen, linear, branched or cyclic alkyl, substituted alkyl, aryl, substituted aryl, hetereoaryl, ferrocenyl, halogen, hydroxy, alkoxy, aryloxy, alkylthio, arylthio and amido; and wherein X and Z are have the same meaning as above.