Organocatalytic Asymmetric [4+4] Annulation Reaction of Ynones with Unsaturated Pyrazolones: Synthesis of Eight-Membered Ether-Embedded 4,5-Fused Pyrazoles.
DOI Number:
10.1021/acs.orglett.5c01118
Reaction Category:
MOP ID:
MOP_0000561
Educt:
unsaturated pyrazolones, ynones
Product:
(S,Z)-3-methyl-1,4,8-triphenyl-4,5-dihydrooxocino[2,3-c]pyrazol-6(1H)-on
Catalyst:
(8α,9S)-10,11-Dihydro-6′-methoxycinchonan-9-amine
Cas No:
852913-53-2
Associated Product from Buchler GmbH:
Dihydroquinine Base
Cas No:
522-66-7