1′-Methyl-2-oxo-5′-phenylspiro[indoline-3,3′-pyrrolidine]-4′,4′-dicarbonitrile

1′-Methyl-2-oxo-5′-phenylspiro[indoline-3,3′-pyrrolidine]-4′,4′-dicarbonitrile

The title spiro-compound, C20H16N4O, crystallizes with four independent molecules in the asymmetric unit. In all of them, the oxindole unit is planar, the r.m.s. deviations ranging from 0.07 to 0.08 Å, while the pyrrolinyl ring adopts an envelope conformation (with the N a...

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Bibliographic Details
Main Authors: Mohammad Reza Nabid, Seyed Jamal Tabatabaei Rezaei, Yousef Fazaeli, Seik Weng Ng
Format: Article
Language:English
Published: International Union of Crystallography 2010-01-01
Series:Acta Crystallographica Section E
Online Access:http://scripts.iucr.org/cgi-bin/paper?S1600536809053094
Description
Summary:The title spiro-compound, C20H16N4O, crystallizes with four independent molecules in the asymmetric unit. In all of them, the oxindole unit is planar, the r.m.s. deviations ranging from 0.07 to 0.08 Å, while the pyrrolinyl ring adopts an envelope conformation (with the N atom representing the flap). In the crystal, adjacent molecules are linked by N—H...N and N—H...O hydrogen bonds.
ISSN:1600-5368

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