Experimental Crystal data

R factor = 0.041; wR factor = 0.117; data-to-parameter ratio = 14.2. In the title compound, C22H19Cl2NO3, the central six-membered ring is in a twist-boat conformation. The two aryl groups are in equatorial positions, trans to each other and with a dihedral angle of 77.50 (2) between them. One of the least hindered –CH2 – groups and one of the aryl-substituted C atoms, with its axial H atom, are in the flagpole positions. The ethoxycarbonyl group is in an equatorial position and is cis to the second aryl group. In the crystal, molecules are linked via weak C—H O hydrogen bonds, forming chains along [010]. Related literatur