1 `-Methyl-2-oxo-5 `-phenylspiro[indoline-3,3 `-pyrrolidine]-4 `,4 `-dicarbonitrile
Document Type
Article
Publication Date
1-1-2010
Abstract
The title spiro-compound, C(20)H(16)N(4)O, 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 angstrom, 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 center dot center dot center dot N and N-H center dot center dot center dot O hydrogen bonds.
Publication Title
Acta Crystallographica Section E: Structure Reports Online
Volume
66
Issue
1
Publisher
International Union of Crystallography
Publisher Location
COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA