(E)-Dimethyl 2-(6-benzoyl-7-hydroxy-4-methoxycarbonyl-2-oxo-2H-chromen-8-yl)but-2-enedioate
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چکیده
منابع مشابه
(E)-Dimethyl 2-(6-benzoyl-7-hydroxy-4-methoxycarbonyl-2-oxo-2H-chromen-8-yl)but-2-enedioate
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 i...
متن کاملN-[4-(7-Methoxy-2-oxo-2H-chromen-8-yl)-2-methylbutan-2-yl]propionamide
In the crystal structure of the title osthol derivative, C(18)H(23)NO(4), mol-ecules are linked by N-H⋯O hydrogen bonds into an infinite chain running parallel to the c axis. The CH(3)CH(2)- atoms of the propionamide group are disordered over two sets of sites with refined occupancies of 0.689 (12) and 0.311 (12).
متن کامل4-Hydroxy-3-[(4-hydroxy-6,7-dimethyl-2-oxo-2H-chromen-3-yl)(4-oxo-4H-chromen-3-yl)methyl]-6,7-dimethyl-2H-chromen-2-one
In the title compound, C(32)H(24)O(8), the mol-ecular structure is disordered over two positions with refined site occupancies of 0.8746 (10) and 0.1254 (10). The mean plane of the three chromeno rings make dihedral angles with each other of 65.12 (4), 62.91 (4) and 59.70 (4)° in the major occupancy component and 59.1 (3), 66.1 (3) and 58.8 (3)° in the minor component. Intra-molecular O-H⋯O hyd...
متن کامل(5,7-Dimethyl-2-oxo-2H-chromen-4-yl)methyl diethyldithiocarbamate
In the title compound, C(17)H(21)NO(2)S(2), the coumarin ring system is nearly planar, with a maximum deviation of 0.080 (2) Å from the mean plane. An intra-molecular C-H⋯S hydrogen bond occurs. The crystal structure features C-H⋯S hydrogen bonds and weak π-π inter-actions with a centroid-centroid distance of 3.679 (1) Å.
متن کامل4-Methyl-2-oxo-2H-chromen-7-yl 4-methoxybenzenesulfonate
In the title compound, C(17)H(14)O(6)S, the 2H-chromene ring is essentially planar, with a maximum deviation of 0.016 (1) Å. The dihedral angle between the 2H-chromene and the benzene rings is 54.61 (5)°. The C atom of the meth-oxy group is close to coplanar with its attached ring [deviation = 0.082 (2) Å]. In the crystal, mol-ecules are connected via C-H⋯O hydrogen bonds, forming sheets lying ...
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ژورنال
عنوان ژورنال: Acta Crystallographica Section E Structure Reports Online
سال: 2008
ISSN: 1600-5368
DOI: 10.1107/s1600536808020990