Acta Cryst. (2014). E70, o552 [ doi:10.1107/S1600536814007673 ]
Abstract: The molecular title compound, C20H22O6, was obtained by the reaction of ethyl 2-hydroxybenzoate with 1,2-dichloroethane. The molecule lies on a twofold rotation axis which passes through the middle of the central ethylene bridge. This group exhibits a gauche conformation with the corresponding O-C-C-O torsion angle being 73.2 (2)°. The C atoms of the carboxyl group, the aryl and the O-CH2 group are coplanar, with an r.m.s. deviation of 0.01 Å. The two aryl rings form a dihedral angle of 67.94 (4)°. The ester ethyl group is disordered over two sets of sites with an occupancy ratio of 0.59 (2):0.41 (2). The crystal packing is dominated by van der Waals forces.
CCDC reference: 995747
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