title: (E)-Dimethyl 2-(6-benzoyl-7-hydr-oxy-4-methoxy-carbonyl-2-oxo-2H-chromen-8-yl)but-2-enedioate.
abstract: The mol-ecule of the title compound, C(24)H(18)O(10), a previously unknown coumarin derivative, contains methoxy-carbonyl, 2-butenedioate and benzoyl groups aligned at angles of 28.04 (2), 76.89 (3) and 42.48 (13)°, respectively, to the plane of the coumarin ring system. Intra-molecular O-H⋯O hydrogen bonding between hydr-oxy and carbonyl groups and weak inter-molecular C-H⋯O hydrogen bonding is present in the crystal structure. The two carbon atoms and attached H atom of the ethylene bond are disordered over two positions, with site occupancy factors of ca 0.9 and 0.1.
authors.affiliation: Department of Chemistry, University of Mazandaran, 47415 Babolsar, Iran.
authors.forename: Robabeh
authors.initials: R
authors.lastname: Baharfar
authors.forename: S Mohammad
authors.initials: SM
authors.lastname: Vahdat
authors.forename: S Meysam
authors.initials: SM
authors.lastname: Baghbanian