1′-Methyl-4′-(4methylphenyl)dispiro[indane-2, 3′-pyrrolidine-2′,3″-indoline]-1,2″-dione

Abstract

In the title molecule, C27H24N2O 2, the pyrrolidin-2-one ring is almost planar (r.m.s. deviation = 0.003 Å), the pyrrolidine ring has an envelope conformation (the N atom is the flap atom) and the cyclopentanone ring is twisted about the Cq - Cm bond (q = quaternary and m = methylene). The ketone O atoms are directed to opposite sides of the molecule. Supramolecular chains along the a axis are formed in the crystal packing mediated by N - H⋯N and C - H⋯O interactions. These are connected into layers in the ab plane via C - H⋯π interactions. © 2012 International Union of Crystallography.