title: 3-(2,4-Dichloro-phen-yl)-2-oxo-1-oxa-spiro-[4.5]dec-3-en-4-yl 4-chloro-benzoate.
abstract: In the title spiro-diclofen derivative, C(22)H(17)Cl(3)O(4), the cyclo-hexane ring adopts a chair conformation [four C atoms are planar with a mean deviation of 0.018 Å and the two C atoms at the flap positions deviate by 0.613 (4) and -0.668 (5) Å from the plane]. The dihedral angles between the furan ring and the two benzene rings are 55.78 (3) and 49.92 (3)°. Weak inter-molecular C-H⋯Cl inter-actions are observed in the crystal structure.
authors.affiliation: College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310029, People's Republic of China.
authors.forename: Yong
authors.initials: Y
authors.lastname: Zhou
authors.forename: Jing-Li
authors.initials: JL
authors.lastname: Cheng
authors.forename: Guo-Nian
authors.initials: GN
authors.lastname: Zhu
authors.forename: Jin-Hao
authors.initials: JH
authors.lastname: Zhao