Highly enantioselective synthesis of chiral pyranonaphthoquinone‐fused spirooxindoles through organocatalytic three‐component cascade reactions.

DOI Number:

10.1002/ejoc.201500152
Link to literature

Reaction Category:

Spirocyclization

Educt:

substituted indoline-2,3-dione, malononitrile, substituted 2-hydroxynaphthalene-1,4-dione

Product:

chiral pyranonaphthoquinone‐fused spirooxindoles

Catalyst:

N-[3,5-Bis(trifluoromethyl)phenyl]-N′-[(8α,9S)-6′-methoxycinchonan-9-yl]thiourea

Cas No:

852913-16-7

Associated Product from Buchler GmbH:

Quinine Base

Cas No:

130-95-0