title: 3-Mesityl-2-oxo-1-oxaspiro-[4.4]non-3-en-4-yl benzoate.
abstract: In the title compound, C(24)H(24)O(4), a derivative of the potent insecticide and miticide spiro-mesifen, one cyclo-pentane C atom is disordered over two positions with occupancies of 0.574 (12) and 0.426 (12), resulting in respective envelope and twisted conformations for the cyclo-pentane ring. The atom at the flap position is 0.620 (5) Å out of the mean plane formed by the other four atoms of the envelope form. The furan ring makes dihedral angles of 68.26 (3) and 69.38 (2)°, respectively, with the 2,4,6-trimethyl-phenyl and benzene rings. The dihedral angle between the two benzene rings is 62.27 (3)°.
authors: Chuan-Ming
authors: CM
authors: Yu
authors: Zong-Cheng
authors: ZC
authors: Wang
authors: Huan
authors: H
authors: Zhou
authors: Ming-Hua
authors: MH
authors: Ji
authors: Jin-Hao
authors: JH
authors: Zhao
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