Diastereodivergent construction of bispiro[oxindole-bipyrrolidine]s with four consecutive stereocenters via asymmetric [3+2]-cycloaddition of 2,3-dioxopyrrolidines using identical catalysts.
DOI Number:
10.1039/C9QO00452A
Reaction Category:
MOP ID:
MOP_0000715
Educt:
2,3-dioxopyrrolidines, N-2,2,2-trifluoroethylisatin ketimines
Product:
bispiro[oxindole-bipyrrolidine]s
Catalyst:
3-[[4-(1,1-dimethylethyl)phenyl]amino]-4-[[(8α,9S)-6′-methoxycinchonan-9-yl]amino]-3-Cyclobutene-1,2-dione
Cas No:
2241925-42-6
Associated Product from Buchler GmbH:
Quinine Base
Cas No:
130-95-0