1,3-Dihydroxy-9,10-dioxo-9,10-dihydroanthracene-2-carbaldehyde
نویسندگان
چکیده
The title compound, C(15)H(8)O(5), also known as nordamnacanthal, was isolated from the Malaysian Morinda citrifolia L. The 20 non-H atoms are coplanar. The structure is stabilized by intra-molecular O-H⋯O hydrogen bonds and inter-molecular O-H⋯O and C-H⋯O hydrogen bonds, forming bilayers of mol-ecular tapes with alternating stacking directions along the a axis.
منابع مشابه
Crystal structure of 9,10-bis(1,3-dithiol-2-ylidene)-9,10-dihydroanthracene
The crystal structure of the well-studied 9,10-bis-(1,3-di-thiol-2-yl-idene)-9,10-di-hydro-anthracene mol-ecule, C20H12S4, (I), also known as exTTF, is reported. The mol-ecular structure of (I) consists of a di-hydro-anthracene moiety with two 1,3-di-thiol-2-yl-idene substituents. This is a saddle-shaped mol-ecule, which inter-acts with a close neighbor through various π-π and C-H⋯π contacts to...
متن کامل9,10-Dioxo-9,10-dihydroanthracene-1,4-diyl diacetate
In the title compound, C18H12O6, the anthra-quinone ring system is nearly planar [maximum deviation = 0.161 (3) Å] and both acetate groups are located on the same side of the ring plane. A supra-molecular architecture arises in the crystal owing to π-π stacking between parallel benzene rings of adjacent mol-ecules [centroid-centroid distance = 3.883 (4) Å] and weak inter-molecular C-H⋯O hydroge...
متن کاملN,N′-Diphenyl-9,10-dioxo-9,10-dihydroanthracene-2,7-disulfonamide
The title mol-ecule, C26H18N2O6S2, has an overall Z-shaped conformation, in which the benzene rings are inclined to the anthra-quinone mean plane by 60.60 (9) and 50.66 (13)°. In the crystal, N-H⋯O and C-H⋯O hydrogen bonds link the mol-ecules into layers parallel to the bc plane.
متن کاملcatena-Poly[[tetraaquanickel(II)]-μ-(9,10-dioxo-9,10-dihydroanthracene-1,4,5,8-tetracarboxylato)-κ2 O 1:O 8-[tetraaquanickel(II)]-μ-4,4′-bipyridine-κ2 N:N′]
In the crystal of the title polymeric complex, [Ni(2)(C(18)H(4)O(10))(C(10)H(8)N(2))(H(2)O)(8)](n), each Ni(II) cation is coord-in-ated by four water mol-ecules in the equatorial plane, and is further bridged by an 9,10-dioxo-9,10-dihydro-anthracene-1,4,5,8-tetra-carb-oxy-l-ate anion and a 4,4'-bipyridine ligand in the axial directions, forming a distorted octa-hedral geometry. The 9,10-dioxo-9...
متن کاملOXIDATIVE DEHYDROGENATION OF 1-TETRALONES: SYNTHESIS OF JUGLONE, NAPHTHAZARIN, AND ?-HYDROXYANTHRAQUINONES
Treatment of 5,8-dihydroxy-1-tetralone (9) with either 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (DDQ) in refluxing benzene or silver (I) oxide in refluxing 1,4-dioxane afforded juglone (5-hydroxy-1,4-naphthoquinone) (1) in good yield. With manganese dioxide in dioxane the tetralone gave a mixture of juglone and naphthazarin (5,8-dihydroxy-1,4-naphthoquinone) (3), the proportion of naphthazarin...
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عنوان ژورنال:
دوره 64 شماره
صفحات -
تاریخ انتشار 2008