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Acta Cryst. (2013). E69, o951
[ doi:10.1107/S1600536813013305 ]

Dimethyl 1,8-bis(4-methylphenyl)-11-oxatricyclo[6.2.1.02,7]undeca-2,4,6,9-tetraene-9,10-dicarboxylate

B. Balakrishnan, M. Nandakumar, P. R. Seshadri and A. K. Mohanakrishnan

Abstract: The title compound, C28H24O5, consists of a fused tricyclic system containing two five-membered rings and one six-membered ring. The five-membered rings both exhibit an envelope conformation with the O atom at the flap, whereas the six-membered ring adopts a boat conformation. The dihedral angle between the 4-methylphenyl rings at the 1,8-positions is 76.4 (1)°. In the crystal, molecules are stacked in columns along the a axis through C-H...O interactions.


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