9-(4-Chlorophenyl)-3,6-diphenyl-1,2,3,4,5,6,7,8-octahydro-9H-xanthene-1,8-dione
نویسندگان
چکیده
In the title compound, C(31)H(25)ClO(3), the central ring of the xanthene core shows a shallow boat conformation, while the outer six-membered rings display envelope conformations. The dihedral angle between the outer aromatic rings is 88.1 (3)° and the dihedral angles between the chloro-benzene ring and the two phenyl rings are 69.5 (2) and 69.6 (2)°.
منابع مشابه
Crystal structure of 10a-hydroxy-9-(3-nitrophenyl)-3,6-diphenyl-3,4,5,6,7,8a,9,10a-octahydro-1H-xanthene-1,8(2H)-dione
In the octa-hydroxanthenedione unit of the title compound, C31H27NO6, the central di-hydro-pyran ring shows an envelope conformation, while the bilateral cyclo-hexene and cyclo-hexane rings adopt a half-boat conformation and a chair conformation, respectively. The nitro-benzene ring is twisted with respect to the two benzene rings, making dihedral angles of 63.1 (1) and 63.0 (1)°. In the crysta...
متن کامل3,3,6,6-Tetramethyl-9-[6-(3,3,6,6-tetramethyl-1,8-dioxo-2,3,4,5,6,7,8,9-octahydro-1H-xanthen-9-yl)pyridin-2-yl]-2,3,4,5,6,7,8,9-octahydro-1H-xanthene-1,8-dione
In the title mol-ecule, C(39)H(45)NO(6), the two tetra-methyl-octa-hydroxanthen-1,8-dione substituents are arranged approximately parallel to each other and approximately perpendicular to the plane of the pyridine ring. The six-membered xanthene rings adopt flattened boat conformations with the O and methine C atoms deviating from the plane of the other four atoms.
متن کامل9-[(E)-2-(4-Chlorophenyl)ethenyl]-3,3,6,6-tetramethyl-2,3,4,5,6,7,8,9-octahydro-1H-xanthene-1,8-dione
In the title compound, C25H27ClO3, each of the cyclo-hexenone rings adopts an envelope conformation, whereas the six-membered pyran ring adopts a flattened boat conformation, with the O and methine C atoms deviating from the plane of the other four atoms. The C=C double bond is in the trans conformation. In the crystal, weak C-H⋯O hydrogen bonds link the mol-ecules into chains running parallel ...
متن کامل9-(2-Chlorophenyl)-4a-hydroxy-3,4,4a,5,6,7,9,9a-octahydro-2H-xanthene-1,8-dione
In the title compound, C19H19ClO4, the di-hydro-pyran ring and the cyclo-hexane ring adopt a half-chair conformation and a chair conformation, respectively. The cyclo-hexene ring has an envelope conformation with the central CH2 C atom as the flap. This atom is disordered over two positions [site-occupancy ratio = 0.744 (12):0.256 (12)] above and below the mean plane formed by the other five at...
متن کامل9-(7-Fluoro-4-oxo-4H-chromen-3-yl)-3,3,6,6-tetramethyl-2,3,4,5,6,7,8,9-octahydro-1H-xanthene-1,8-dione
In the title compound, C(26)H(25)FO(5), the terminal cyclo-hexane rings of the xanthene ring system adopt half-boat conformations. The 4H-chromene ring make a dihedral angle of 87.94 (5)° with the xanthene ring system and its carbonyl O atom lies above the xanthene O atom. In the crystal, mol-ecules are linked into ribbons propagating along the a-axis direction by C-H⋯O hydrogen bonds. Aromatic...
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