title: 2-(4-Methoxyphenoxy)-6-methyl-3-oxo-3,6-dihydro-2H-pyran-4-yl benzoate.
abstract: The title compound, C(20)H(18)O(6), has been synthesized from 4-methoxy-phenyl 3-O-benzo-yloxy-α-l-rhamnopyran-oside by oxidation on treatment with pyridinium dichromate in the presence of acetic anhydride. In the mol-ecule, the pyran ring adopts an envelope conformation with the O atom at the flap position. Weak inter-molecular C-H⋯O hydrogen bonding is present in the crystal structure.
authors.affiliation: Department of Applied Chemistry, China Agricultural University, Beijing 100193, People's Republic of China.
authors.forename: Shi-Qiang
authors.initials: SQ
authors.lastname: Yan
authors.forename: Xiao-Mei
authors.initials: XM
authors.lastname: Liang
authors.forename: Jian-Jun
authors.initials: JJ
authors.lastname: Zhang
authors.forename: Dao-Quan
authors.initials: DQ
authors.lastname: Wang