Organocatalytic Asymmetric Oxa-Michael–Michael Reaction of 3-Aryl-2-Nitroprop-2-Enols with Unsaturated Pyrazolones: Synthesis of Spirotetrahydropyranopyrazolones.
DOI Number:
10.1055/a-1938-1243
Reaction Category:
RXNO ID:
RXNO_0000009
Educt:
unsaturated pyrazolones, 3-aryl-2-nitroprop-2-enols
Product:
Spirotetrahydropyranopyrazolones
Catalyst:
3-[[3,5-bis(trifluoromethyl)phenyl]amino]-4-[[(8α,9S)-6′-methoxycinchonan-9-yl]amino]-3-Cyclobutene-1,2-dione
Cas No:
1256245-84-7
Associated Product from Buchler GmbH:
Quinine Base
Cas No:
130-95-0