4-Hydroxy-3-methoxy-5-nitroacetophenone (5-nitroapocynin)
نویسندگان
چکیده
The title mol-ecule, C(9)H(9)NO(5), is close to planar (r.m.s. deviation from the mean plane of the non-H atoms = 0.058 Å). The OH group forms a bifurcated O-H⋯(O,O) hydrogen bond, with the intra-molecular component to a nitro O atom and the inter-molecular component to a keto O atom, the latter resulting in chains along [20]. A C-H⋯O inter-action reinforces the packing.
منابع مشابه
5-Hydroxy-7-methoxy-4H-chromen-4-one
The mol-ecular conformation of the title compound, C(10)H(8)O(4), isolated from Laretia acualis, is stabilized by a strong intra-molecular hydrogen bond between the hydroxyl and carbonyl groups. The crystal packing shows π-π stacking inter-actions. The chromene (4H-1-benzopyran-4-one) unit is essentially planar.
متن کامل(S)-5-Hexyl-1-[(S)-2-hydroxy-1-phenylethyl]-4-methoxy-1H-pyrrol-2(5H)-one
The title compound, C(19)H(27)NO(3), was obtained by the reaction of (3S,7aR)-7a-hexyl-7-meth-oxy-3-phenyl-2,3-dihydro-pyrrolo[2,1-b]oxazol-5(7aH)-one and triethyl-silane using titanium(IV) chloride as catalyst. In the mol-ecule, the phenyl and dihydro-pyrrolone rings form a dihedral angle of 83.8 (1)°. O-H⋯O hydrogen-bonding inter-actions lead to the formation of a chain parallel to the a axis.
متن کامل2-Hydroxy-N′-(2-hydroxy-3-methoxy-5-nitrobenzylidene)-3-methylbenzohydrazide
In the title compound, C(16)H(15)N(3)O(6), the dihedral angle between the two benzene rings is 0.9 (2)°. The mol-ecule adopts an E configuration with respect to the C=N bond. There are intra-molecular O-H⋯N and O-H⋯O hydrogen bonds in the mol-ecule. In the crystal structure, mol-ecules are linked through inter-molecular N-H⋯O hydrogen bonds to form chains running along the c axis.
متن کامل2-(2,6-Dimethoxyphenyl)-5-hydroxy-7-methoxy-4H-1-benzopyran-4-one
In the title compound, C(18)H(16)O(6), the dimethoxy-phenyl ring is rotated by 61.8 (1)° from the plane of the benzopyran system. The mol-ecule is stabilized by an intra-molecular O-H⋯O hydrogen bond.
متن کامل3-[(R)-3,3-Dichloro-2-hydroxypropyl]-8-hydroxy-6-methoxy-1H-isochromen-1-one
The title compound, C(13)H(12)Cl(2)O(5), is an isocoumarin compound which has been isolated from the ethyl acetate extract of the fermentation broth of actinomycete Streptomyces sp. (V(4)) from the South China Sea. There are intra- and inter-molecular hydrogen bonds and halogen bonds [Cl⋯Cl = 3.434 (2) Å; C-Cl⋯Cl = 121.6°]. The intermolecular O-H⋯O hydrogen bonds link mol-ecules into chains alo...
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عنوان ژورنال:
دوره 65 شماره
صفحات -
تاریخ انتشار 2009