Acta Cryst. (2001). E57, o901-o903  [ doi:10.1107/S1600536801013964 ]

3-Benzylidene-1'-methyl-4'-phenylcyclohexanespiro-3'-pyrrolidine-2'-spiro-3''-indoline-2,2''-dione

A. Jeyabharathi, M. N. Ponnuswamy, A. Amal Raj, R. Raghunathan, I. A. Razak, A. Usman, S. Chantrapromma and H.-K. Fun

Abstract: In the title compound, C₃₀H₂₈N₂O₂, there are two molecules in the asymmetric unit. In both molecules, the pyrrolidine ring adopts an envelope conformation whereas the conformation of the cyclohexane ring is half-chair. The oxindole moiety is almost perpendicular to the pyrrolidine ring; the benzylidene moiety and the phenyl ring are in equatorial and bisectional configurations with respect to their attached pyrrolidine and cyclohexanone rings, respectively. Intramolecular C-HO and intermolecular N-HN and N-HO interactions stabilize the molecular structure and the packing in the crystal.

Online 31 August 2001

Copyright © International Union of Crystallography
IUCr Webmaster