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9,9-Dimethyl-12-(4-nitro-phen-yl)-9,10-dihydro-12H-benzo[a]xanthen-11(8H)-one.

ABSTRACT: In the mol-ecular structure of the title compound, C(25)H(21)NO(4), the pyran ring adopts a flattened boat conformation, while the cyclo-hexenone ring is in an envelope conformation. The 4-nitro-phenyl ring is almost perpendicular to the pyran ring [dihedral angle = 89.39 (1)°]. In the crystal, mol-ecules are connected by inter-molecular C-H⋯O hydrogen bonds.

SUBMITTER: Li DL

PROVIDER: S-EPMC2972096 | biostudies-literature | 2009 Nov

REPOSITORIES: biostudies-literature

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9,9-Dimethyl-12-(4-nitro-phen-yl)-9,10-dihydro-12H-benzo[a]xanthen-11(8H)-one.

Li De-Ling DL Wang Li-Hong LH

Acta crystallographica. Section E, Structure reports online 20091121 Pt 12

In the mol-ecular structure of the title compound, C(25)H(21)NO(4), the pyran ring adopts a flattened boat conformation, while the cyclo-hexenone ring is in an envelope conformation. The 4-nitro-phenyl ring is almost perpendicular to the pyran ring [dihedral angle = 89.39 (1)°]. In the crystal, mol-ecules are connected by inter-molecular C-H⋯O hydrogen bonds. ...[more]

PMID: 21578862

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