| Abstract |
The title compound, C20H22O6, was obtained by the reaction of ethyl 4-hydroxybenzoate with 1,2-dichloroethane in dimethylformamide. The molecule lies around the crystallographic inversion center at (0,0,0), with the asymmetric unit consisting of one half of the molecule. The two ethyl groups are in trans positions. The ethyl, carboxyl, aryl and O-CH2 groups are coplanar with an r.m.s. deviation of 0.0208 (9) angstrom. The whole molecule is planar with an r.m.s. deviation of 0.0238 (9) angstrom for the 19 atoms used in the calculation and 0.0071 (9) angstrom for the two aryl groups in the molecule. A weak intermolecular C-H center dot center dot center dot O hydrogen bond and a C-H center dot center dot center dot pi interaction help to consolidate the three-dimensional network. |
