Highly Enantioselective Michael Reactions Catalyzed by a Chiral Quaternary Ammonium Salt. Illustration by Asymmetric Syntheses of (S)-Ornithine and Chiral 2-Cyclohexenones.
DOI Number:
10.1021/ol0056527
Reaction Category:
MOP ID:
MOP_0000369
Educt:
tert-butyl 2-((diphenylmethylene)amino)acetate, acrylonitrile
Product:
tert-butyl (S)-4-cyano-2-((diphenylmethylene)amino)butanoate
Catalyst:
(8α,9R)-1-(9-anthracenylmethyl)-9-(2-propenyloxy)-Cinchonanium bromide
Cas No:
200132-54-3
Associated Product from Buchler GmbH:
Cinchonidine Base
Cas No:
485-71-2