Bifunctional Cinchona Alkaloid Catalyzed Vinylogous Michael Reaction of 3–Alkylideneoxindole with 4‐Oxo‐enoates: A Route to Chiral γ‐Keto Alkylideneoxindole Esters.
DOI Number:
10.1002/ajoc.202000227
Reaction Category:
RXNO ID:
RXNO_0000009
Educt:
3–alkylideneoxindole, 4‐oxo‐enoates
Product:
tert-butyl (S,E)-3-(5-(3-bromophenyl)-3-(ethoxycarbonyl)-5-oxo-1-phenylpentylidene)-2-oxoindoline-1-carboxylate
Catalyst:
N-[3,5-Bis(trifluoromethyl)phenyl]-N′-[(9R)-6′-methoxycinchonan-9-yl]thiourea
Cas No:
852913-25-8
Associated Product from Buchler GmbH:
N-[3,5-Bis(trifluoromethyl)phenyl]-N′-[(9R)-6′-methoxycinchonan-9-yl]thiourea
Cas No:
852913-25-8