(3 + 1) Annulation/Rearrangement Cascade of C,N-Cyclic Azomethine Imines and 3-Chlorooxindoles: Construction of Hexahydroindeno[2,1-c]pyrazole Spirooxindole Frameworks.

DOI Number:

10.1021/acs.orglett.9b03996

Reaction Category:

Educt:

3-chloro-1-methylindolin-2-one, benzoyl(3,4-dihydroisoquinolin-2-ium-2-yl)amide

Product:

(3S,3aR,8aS)-2-benzoyl-1'-methyl-1,3a,8,8a-tetrahydro-2H-spiro[indeno[2,1-c]pyrazole-3,3'-indolin]-2'-one

Catalyst:

6-Chloro-1-hydroxybenzotriazole, N-[(1R,2R)-2,3-dihydro-2-hydroxy-1H-inden-1-yl]-N′-[(8α,9S)-6′-methoxycinchonan-9-yl]-thiourea

Cas No:

26198-19-6; 2402737-07-7

Cas No:

130-95-0