1-(2,6-Dihydroxy-4-methoxyphenyl)-3-phenylpropan-1-one1
نویسندگان
چکیده
The title compound, C(16)H(16)O(4), a dihydro-chalcone, was isolated from the rhizomes of Etlingera littoralis. The mol-ecule is twisted with a dihedral angle of 71.69 (6)° between the two aromatic rings. The propanone unit makes dihedral angles of 4.07 (6) and 73.56 (7)°, respectively, with the 2,6-dihydroxy-4-methoxyphenyl and phenyl rings. The meth-oxy group is approximately coplanar with the attached benzene ring with a dihedral angle of 1.74 (10)°. An intra-molecular O-H⋯O hydrogen bond generates an S(6) ring motif. In the crystal, inter-molecular O-H⋯O hydrogen bonds link the mol-ecules into chains along [201]. A π-π inter-action with a centroid-centroid distance of 3.5185 (6) Å is also observed.
منابع مشابه
(Z)-3-(9-Anthryl)-1-(4-methoxyphenyl)prop-2-en-1-one1
The title chalcone derivative, C(24)H(18)O(2), which consists of the substituted 4-methoxy-phenyl and anthracene rings bridged by the prop-2-en-1-one unit, exists in a cis configuration. The mol-ecule is twisted, the inter-planar angle between the benzene and anthracene rings being 69.50 (10)°. The meth-oxy group is coplanar with the attached benzene ring [C-O-C-C angle = 2.9 (3)°]. In the crys...
متن کامل4-(4-Methoxyphenyl)-1-phenylpyridine-2,6(1H,3H)-dione
In the title compound, C(18)H(15)NO(3), the pyridine-2,6-dione ring adopts an envelope conformation. The phenyl ring lies approximately perpendicular to the mean plane of the pyridine-2,6-dione ring [dihedral angle = 81.5 (1)°], while the methoxy-phenyl ring is tilted to the same plane by a dihedral angle of 34.8 (1)°. Inter-molecular C-H⋯O inter-actions link the mol-ecules into chains along [1...
متن کاملtrans-4,5-Dihydroxy-1,3-bis(4-methoxyphenyl)imidazolidine-2-thione
In the title compound, C(17)H(18)N(2)O(4)S, where one of the N-4-methoxy-phenyl fragments is disordered over two sets of sites, the five-membered ring exhibits a nearly half-chair conformation and the two hydroxyl groups lie on opposite sides of the five-membered ring. In the crystal, the mol-ecules are linked into sheets parallel to (100) via O-H⋯O and O-H⋯S hydrogen bonds.
متن کاملthreo-2-(2,6-Dimethoxyphenoxy)-1-(4-ethoxy-3-methoxyphenyl)propane-1,3-diol
In the crystal structure of the title compound, C(20)H(26)O(7), a lignin model compound, the asymmetric unit contains two mol-ecules which adopt almost identical overall conformations with some deviation in the region of the terminal hydroxyl groups. The two mol-ecules are linked by an inter-molecular O-H⋯O hydrogen bond. They also develop intra-molecular O-H⋯O hydrogen bonds.
متن کامل2,6-Bis(3-methoxyphenyl)-3-methylpiperidin-4-one
In the mol-ecule of the title compound, C(20)H(23)NO(3), the bulky methoxy-phenyl substituents at the equatorial 2,6-positions crowd the vicinity of the equatorial amino H atom and prevent it from forming inter-molecular hydrogen bonds. The piperidine ring adopts a distorted chair conformation.
متن کامل