Enantioselective Michael Addition of 3‐Aryloxindoles to Phenyl Vinyl Sulfone Catalyzed by Cinchona Alkaloid‐Derived Bifunctional Amine–Thiourea Catalysts Bearing Sulfonamide as Multiple Hydrogen‐Bonding Donors.
DOI Number:
10.1002/ejoc.201100791
Reaction Category:
RXNO ID:
RXNO_0000009
Educt:
3‐aryloxindoles, (vinylsulfonyl)benzene
Product:
3R-substituted tert-butyl (S)-2-oxo-3-(2-(phenylsulfonyl)ethyl)indoline-1-carboxylate
Catalyst:
N-[(1S,2S)-2-[[[[(8α,9S)-6′-methoxycinchonan-9-yl]amino]thioxomethyl]amino]-1,2-diphenylethyl]-methanesulfonamide
Cas No:
1295509-72-6
Associated Product from Buchler GmbH:
Quinine Base
Cas No:
130-95-0