Patent ID: 7291739
Filing Date: 2007-11-06
Classification: B01J,C07B,C07C,C07D

Abstract:
1. A process for stereoselective reaction of a catalyst selected from the group consisting of formula I: wherein the 3-substituent Z is substantially hindered from rotation about the bond (sp wherein each of R wherein R 1 and/or R 2 may be optionally substituted and/or include one or more heteroatoms; formula II: wherein R R R one or more R 6 are each independently selected from the group consisting of C 1-20 and C 3-20 aryl, optionally substituted and/or including one or more hetero atoms; or formula III: wherein R 1 -R 3 and R 6 are as hereinbefore defined; or a salt, dimer or oligomer thereof; with an optically inactive substrate to provide one or both enantiomers of a derivative thereof, with simultaneous or subsequent recovery of the catalyst.