Cinchona Alkaloid‐Derived Zwitterions Catalyzed Enantioselective Steglich Rearrangement and Aldol Reaction of O‐Acylated Oxindoles.
DOI Number:
10.1002/cctc.202200136
Reaction Category:
RXNO ID:
RXNO_0000201
Educt:
benzyl 2-(((benzyloxy)carbonyl)oxy)-3-methylindoline-1-carboxylate, 4-nitrobenzaldehyde
Product:
benzyl (R)-3-((S)-(((benzyloxy)carbonyl)oxy)(4-nitrophenyl)methyl)-3-methyl-2-oxoindoline-1-carboxylate
Catalyst:
(8α,9R)-1-[(4,4′′-dimethoxy[1,1′:3′,1′′-terphenyl]-5′-yl)methyl]-6′-hydroxy-9-(phenylmethoxy)-cinchonanium inner salt
Cas No:
2762947-46-4
Associated Product from Buchler GmbH:
Cupreine Base
Cas No:
524-63-0