Date Published: April 01, 2011
Publisher: International Union of Crystallography
Author(s): S. Selvanayagam, K. Ravikumar, P. Saravanan, R. Raghunathan.
In the title compound, C32H28N2O2, the pyrrolidine ring adopts an envelope conformation, whereas the cyclohexanone ring in the tetrahydronaphthalene fused-ring system adopts a half-chair conformation. The oxindole ring system is oriented at an angle of 48.2 (1)° with respect to the naphthyl ring system. An intramolecular C—H⋯O close contact is observed. In the crystal, molecules associate via two C—H⋯O hydrogen bonds, forming R22(14) and R22(10) dimers.
For general background to pyrrolidine derivatives, see: Obniska et al. (2003 ▶); Peddi et al. (2004 ▶); Kaminski & Obniska (2008 ▶); Stylianakis et al. (2003 ▶). For related structures, see: Selvanayagam et al. (2011 ▶); Gans & Shalloway (2001 ▶). For ring-puckering parameters, see: Cremer & Pople (1975 ▶) and for asymmetry parameters, see: Nardelli (1983 ▶).