Acta Cryst. (2009). E65, o705  [ doi:10.1107/S1600536809006503 ]

3-Mesityl-2-oxo-1-oxaspiro[4.4]non-3-en-4-yl 4-chlorobenzoate

M.-H. Ji, M. Xia, G.-N. Zhu and J.-H. Zhao

Abstract: The title compound, C₂₄H₂₃ClO₄, is a potent insecticide and miticide. The five-membered cyclopentane ring displays an envelope conformation with the atom at the flap position 0.611 (2) Å out of the mean plane formed by the other four atoms. The furan ring makes dihedral angles of 71.3 (2) and 81.9 (2)°, respectively, with the 2,4,6-trimethylphenyl and 4-chlorophenyl rings. The dihedral angle between the two benzene rings is 76.6 (1)°. In the crystal, molecules are linked through weak intermolecular C-HO hydrogen bonds, forming chains running along the c axis.

Online 6 March 2009

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