Acta Cryst. (2008). E64, o2324  [ doi:10.1107/S1600536808036258 ]

1-(2-Hydroxy-3,4-dimethoxyphenyl)-2-(4-methoxyphenyl)ethanone

Z.-P. Xiao and H.-Y. Xiao

Abstract: In the title compound, C₁₇H₁₈O₅, the pyrogallol group is almost coplanar with the mean plane of the attached carbonyl group [dihedral angle of 1.95 (13)°] and makes a dihedral angle of 56.01 (10)° with the other benzene ring. Of the three methoxy groups, only one is significantly twisted relative to its attached benzene ring [C-O-C-C torsion angles of 4.0 (5), 3.9 (6) and -106.3 (4)°]. Intramolecular O-HO and C-HO hydrogen bonds help to establish the conformation, and the packing is consolidated by C-HO interactions and - stacking interactions [centroid-centroid separation = 3.735 (2) Å].

Online 13 November 2008

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