C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
530/5.04, 260/47
C07D 403/06 (2006.01) B01J 31/02 (2006.01) C07C 45/89 (2006.01) C07C 49/88 (2006.01) C07C 255/38 (2006.01) C07K 5/06 (2006.01) C07K 5/078 (2006.01) C07K 5/12 (2006.01)
Patent
CA 1263800
PROCESS FOR THE PREPARATION OF OPTICALLY-ACTIVE CYANOMETHYL ESTERS Abstract of the Disclosure Stereoisomerically-enriched cyanomethyl esters are prepared by treating a non-symmetrical ketene or an alpha-chiral carboxylic acid halide or reactive derivative thereof with an optically-active alpha- hydroxynitrile. Certain optically-active optionally substituted S-alpha- cyano-3-phenoxybenzyl alcohol intermediates are prepared by treating the corresponding aldehyde or ketone with a source of hydrogen cyanide in the presence of a substantially water-immiscible, aprotic solvent and a cyclo(D-phenylalanyl-D-histidine) as a catalyst.
441540
Dong Walter
Stoutamire Donald W.
Tieman Charles H.
Dong Walter
E.i. Du Pont de Nemours And Company
Smart & Biggar
Stoutamire Donald W.
Tieman Charles H.
LandOfFree
Process for the preparation of optically-active cyanomethyl... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for the preparation of optically-active cyanomethyl..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the preparation of optically-active cyanomethyl... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1242129