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:

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

Cas No:

130-95-0