Received 3 January 2013
The title compound, C11H12O3, is potentially a butane-2,3-dione derivative but exists in the enol form in the solid state. In the molecule, the 3-hydroxybut-3-en-2-one, benzene and methoxyl fragments are almost co-planar. The 3-hydroxybut-3-en-2-one fragment is almost planar with an r.m.s. deviation of 0.040 Å. The dihedral angle between this plane and that of the benzene ring is 5.88 (4)°. The 4-methoxy group also lies close to the benzene ring plane, with deviations of 0.0206 (11) Å for the O and 0.087 (2) Å for methyl C atoms. Hence, the whole molecule is almost planar with an r.m.s. deviation of 0.0617 Å from a plane through all 14 non-H atoms. In the crystal, the molecules are linked by O-HO hydrogen bonds, generating  chains.
The synthesis of the compound is described by Wang & Huang (2010). For applications of aromatic ketones as fragrances, see: Tong et al. (2009). For the relationship between structure and fragrance, see: Griesbeck et al. (2012). For related structures and details of their synthesis, see: Yamane et al. (2005); Si et al. (1990); Salimbeni et al. (1987); Mosrin et al. (2009). For standard bond lengths, see: Allen et al. (1987).
Data collection: CrysAlis PRO (Agilent, 2012); cell refinement: CrysAlis PRO; data reduction: CrysAlis PRO; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: DIAMOND (Brandenburg, 2004); software used to prepare material for publication: publCIF (Westrip, 2010).
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: SJ5292 ).
This work was supported by the Natural Science Foundation of China (NSFC) (grant 21203130).
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