Received 11 March 2008
The title compound, C10H14O5, is an intermediate in our study of the asymmetric synthesis of -hydroxyalkanoic acids. The structure consists of 1,4-dioxaspiro[4,5]decane skeleton formed when the cyclohexylidene group binds to both of the hydroxyl groups of carboxylic groups of the starting malic acid. The six-membered ring adopts a chair conformation.
For related literature, see: Coppola & Schuster (1997); Díez et al. (2001); Dixon et al. (2005); Hanessian et al. (1993); Heimgartner & Obrecht (1990); Horgen et al. (2000); Liang et al. (2000); Sitachitta et al. (2000); Sugiyama et al. (1990).
Data collection: APEX2 (Bruker, 2004); cell refinement: APEX2; data reduction: SAINT (Bruker, 2004); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL.
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: WK2081 ).
We gratefully acknowledge financial support in part from the National Science Council, Taiwan (NSC 96-2113-M-033-003) and in part from the project of the specific research fields in the Chung Yuan Christian University, Taiwan, under grant CYCU-95-CR-CH.
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