Yan SQ, Liang XM, Zhang JJ, Wang DQ. 2-(4-Methoxyphenoxy)-6-methyl-3-oxo-3,6-dihydro-2
H-pyran-4-yl benzoate.
Acta Crystallogr Sect E Struct Rep Online 2009;
65:o586. [PMID:
21582241 PMCID:
PMC2968613 DOI:
10.1107/s1600536809004231]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2008] [Accepted: 02/05/2009] [Indexed: 11/10/2022]
Abstract
The title compound, C20H18O6, has been synthesized from 4-methoxyphenyl 3-O-benzoyloxy-α-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.
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