Enantioselective synthesis of spiro [indoline-3,4′-pyrano[2,3-c]pyrazole] derivatives via an organocatalytic asymmetric Michael/cyclization cascade reaction.
DOI Number:
10.1039/C6OB01256F
Reaction Category:
Educt:
isatylidene malononitriles, substituted 2,4-dihydro-3H-pyrazol-3-one
Product:
spiro [indoline-3,4′-pyrano[2,3-c]pyrazole] derivatives
Catalyst:
(9S,9′′S)-9,9′′-[(2,5-diphenyl-4,6-pyrimidinediyl)bis(oxy)] bis[10,11-dihydro-6′-methoxy-cinchonan]
Cas No:
149725-81-5
Associated Product from Buchler GmbH:
Dihydroquinidine Base
Cas No:
1435-55-8