title: (S)-6-{[(S)-2,2-Dimethyl-1,3-dioxolan-4-yl]meth-yl}-5,5-difluoro-5,6-dihydro-2H-pyran-2-one.
abstract: The title compound, C(11)H(14)F(2)O(4), is a γ,γ-gem-difluorinated α,β-unsaturated δ-lactone. The dioxolane five-membered ring and the lactone ring adopt half-chair conformations. There are two inter-molecular C-H⋯O inter-actions involving the carbonyl group as an acceptor which stabilize the crystal structure.
authors.forename: Zengsheng
authors.initials: Z
authors.lastname: Yin
authors.forename: Xiangjun
authors.initials: X
authors.lastname: Deng
authors.forename: Rongxing
authors.initials: R
authors.lastname: Yao
authors.forename: Hongqi
authors.initials: H
authors.lastname: Li
authors.forename: Pinqiao
authors.initials: P
authors.lastname: Zhao