The complete mol-ecule of the title compound, C(19)H(18)Cl(2)O(4), is generated by a crystallographic twofold axis that passes through the spiro C atom. The 1,3-dioxane ring adopts a chair conformation and the phenyl substituent occupies an equatorial site.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2979752PMC
http://dx.doi.org/10.1107/S1600536810002400DOI Listing

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