Received 29 December 2012
The title compound, C20H20O3, contains two fused rings with a quaternary carbon centre connecting p-toluoyl and ethoxycarbonyl groups. The dihedral angle between the fused benzene ring and the three-C-atom plane (derived from O=C-C-C=O) is 82.5 (4)°, whereas the dihedral angle between the planes of the benzene rings is 53.4 (2)°. In the crystal, molecules are linked via C-HOester hydrogen bonds, forming chains propagating along .
Data collection: APEX2 (Bruker, 2004); cell refinement: SAINT(Bruker, 2004); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL.
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: GG2108 ).
The authors are grateful to the Central China Normal University for financial support and thank Dr Xiang-Gao Meng for the X-ray data collection.
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