7-Ethoxy-4′-methoxyisoflavone (monoethylformononetin)
نویسنده
چکیده
The title compound, C(18)H(16)O(4), is composed of a benzopyran-one core with a 4-methoxy-phenyl subsituent in the 3-position and an additional eth-oxy group in the 7-position. The benzopyran-one ring is not coplanar with the benzene ring, the dihedral angle between them being 41.76 (7)°. The meth-oxy and eth-oxy substituents are nearly coplanar with the ring systems to which they are attached. Individual mol-ecules are linked by two kinds of inter-molecular hydrogen bonds into chains containing classical R(2) (2)(8) rings. The chains are further assembled by aromatic F-tape and T-tape stacking inter-actions and additional inter-molecular hydrogen bonding to give a two-dimensional network.
منابع مشابه
2-Ethoxy-6-{[1-(3-ethoxy-2-hydroxybenzyl)-1H-benzimidazol-2-yl]methyl}phenol nitromethane monosolvate
In the title solvate, C(24)H(24)N(2)O(4)·CH(3)NO(2), the benzene ring of the 2-eth-oxy-6-methyl-phenol substituent is approximately perpendicular to the nearly planar benzimidazole ring [maximum deviation = 0.021 (2) Å], making a dihedral angle of 84.32 (7)°. The benzene ring of the 2-eth-oxy-phenol group is somewhat inclined to the benzimidazole ring plane by 28.03 (5)°. The dihedral angle bet...
متن کاملCrystal structure of 4-ethoxy-N-(4-ethoxyphenyl)-N-phenylaniline
In the title compound, C22H23NO2, the planes of the eth-oxy-benzene rings are oriented with respect to that of the phenyl ring at dihedral angles of 61.77 (8) and 84.77 (8)°, and they are twisted with respect to one another, with a dihedral angle of 80.37 (7)°. In the crystal, weak C-H⋯π inter-actions link the mol-ecules into supra-molecular chains propagating along [101].
متن کامل1-Ethoxy-2-methoxy-4-[2-(4-nitrophenyl)ethenyl]benzene
In the title mol-ecule, C(17)H(17)NO(4), the dihedral angle between the two aromatic rings is 42.47 (7)°. The nitro group is twisted by 7.44 (11)° out of the plane of the ring to which it is attached. The methoxy and ethoxy group O atoms deviate significantly from the phenyl ring [by 0.0108 (11) and 0.0449 (11) Å, respectively]. The crystal structure is stabilized by C-H⋯π inter-actions.
متن کامل4-Methyl-7-[2-(1H-1,2,4-triazol-1-yl)ethoxy]-2H-chromen-2-one
In the title mol-ecule, C(14)H(13)N(3)O(3), the dihedral angle between the triazole ring and coumarin ring system is 73.01 (4)°. The crystal structure is stabilized by weak inter-molecular C-H⋯N and C-H⋯O hydrogen bonds.
متن کاملN′-(3-Ethoxy-2-hydroxybenzylidene)-4-hydroxy-3-methoxybenzohydrazide monohydrate
In the title compound, C(17)H(18)N(2)O(5)·H(2)O, the dihedral angle between the two aromatic rings is 7.86 (7)° and an intra-molecular O-H⋯N hydrogen bond is observed. In the crystal structure, mol-ecules are linked into a three-dimensional network by inter-molecular O-H⋯O and N-H⋯O hydrogen bonds.
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عنوان ژورنال:
دوره 64 شماره
صفحات -
تاریخ انتشار 2008