Asymmetric catalysis

Details Asymmetric catalysis Asymmetric catalysis

B - Operations, Transporting

01

J

260/468, 260/551

B01J 31/24 (2006.01)

Patent

CA 1094094

ABSTRACT OF THE DISCLOSURE Catalytic asymmetric hydrogenation of the Z geometric isomer of a compound of the formula Image wherein R and R1 each independently represent substituents as desired in the hydrogenation product or its derivatives, R2 represents -CN, Image , or -?-O-R6 wherein R4 and R5 each indepen- ently represent hydrogen, alkyl having from 1 to 5 carbon atoms or aryl, R6 represents hydrogen, alkyl having from 1 to 5 carbon atoms, aryl or an alkali metal, and R3 represents -?-O-R7 or -?-R8 wherein R7 and R8 each independently represent alkyl having from 1 to 5 carbon atoms or aryl; provided that, when R3 is -?-R8, R2 cannot be -?-O-R6 or Image , in the presence of a homogenous, coordination complex catalyst comprising rhodium, iridium or ruthenium in combination with an optically active bis phosphine ligand provides an outstanding level of optical purity.

259753

Affiliated with

Also associated with

Rating

Asymmetric catalysis does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Asymmetric catalysis, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Asymmetric catalysis will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-680311