Acid‐Controlled Regional Diverse Synthesis of CF3‐Containing Ketoimines and Application in the Construction of Bispiro [oxindole‐pyrrolidine‐benzothiophenone]s.

DOI Number:

10.1002/ejoc.202300586

Reaction Category:

Educt:

methyl (E)-2-(1-methyl-2-oxoindolin-3-ylidene)acetate, 7-methyl-3-((2,2,2-trifluoroethyl)imino)benzo[b]thiophen-2(3H)-one

Product:

bispiro[oxindole‐pyrrolidine‐benzothiophenone]s

Catalyst:

3-[[3,5-Bis(trifluoromethyl)phenyl]amino]-4-[[(9R)-6′-methoxycinchonan-9-yl]amino]-3-cyclobutene-1,2-dione

Cas No:

1256245-79-0

Associated Product from Buchler GmbH:

3-[[3,5-bis(trifluoromethyl)phenyl]amino]-4-[[(9R)-6′-methoxycinchonan-9-yl]amino]-3-Cyclobutene-1,2-dione

Cas No:

1256245-79-0