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Acta Cryst. (2009). E65, o586  [ doi:10.1107/S1600536809004231 ]

2-(4-Methoxyphenoxy)-6-methyl-3-oxo-3,6-dihydro-2H-pyran-4-yl benzoate

S. Yan, X. Liang, J. Zhang and D. Wang

Abstract: The title compound, C20H18O6, has been synthesized from 4-methoxyphenyl 3-O-benzoyloxy-[alpha]-L-rhamnopyranoside by oxidation on treatment with pyridinium dichromate in the presence of acetic anhydride. In the molecule, the pyran ring adopts an envelope conformation with the O atom at the flap position. Weak intermolecular C-H...O hydrogen bonding is present in the crystal structure.

Online 25 February 2009


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