Acta Crystallographica Section E (Dec 2012)
(3aRS,7aSR)-7a-Methoxy-2-oxo-2,3,3a,4,5,6,7,7a-octahydro-1-benzofuran-4,4-dicarbonitrile
Abstract
The racemic title compound, C11H12N2O3, contains a [4.3.0]bicyclic unit in which the shared C—C bond adopts a cis configuration. The five- and six-membered rings are in twisted envelope (with the bridgehead C atom bearing the methoxy substituent as the flap) and distorted chair conformations, respectively. In the crystal, the molecules are linked via weak C—H...O iteractions, forming ladder-like chains along [010].