Enantioselective Vinylogous Michael/Cyclization Cascade Reaction of Acyclic β,γ‐Unsaturated Amides with Isatylidene Malononitriles: Asymmetric Construction of Spirocyclic Oxindoles.
DOI Number:
10.1002/adsc.201500469
Reaction Category:
Educt:
isatylidene malononitriles, acyclic β,γ‐unsaturated amides
Product:
substituted (R)-1'-benzhydryl-2',5-dioxospiro[cyclohexane-1,3'-indolin]-3-ene-6,6-dicarbonitrile
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