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2,4-Di-bromo-1,3-dihy-droxy-9H-xanthen-9-one.

ABSTRACT: The title compound, C13H6Br2O4, derived from xanthone, a fundamental structural framework of active ingredients in many medicinal plants, and was synthesized by bromination of 1,3-di-hydroxyxanthen-9-one with N-bromo-succinimide. The mol-ecular conformation is essentially planar, the dihedral angle between the benzene rings being 1.1?(4)°. This conformation is favorable for the formation of an intra-molecular O-H?O hydrogen bond between a hy-droxy group and the xanthone carbonyl group. In the crystal, mol-ecules are associated into chains along the b-axis direction via C=O?H-O hydrogen bonds involving the other hy-droxy group.

SUBMITTER: Huang SW

PROVIDER: S-EPMC3793836 | biostudies-other | 2013

REPOSITORIES: biostudies-other

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2,4-Di-bromo-1,3-dihy-droxy-9H-xanthen-9-one.

Huang Shi-Wen SW Yang Zheng-Min ZM Huang Fu-Ping FP Qin Jiang-Ke JK

Acta crystallographica. Section E, Structure reports online 20130731 Pt 8

The title compound, C13H6Br2O4, derived from xanthone, a fundamental structural framework of active ingredients in many medicinal plants, and was synthesized by bromination of 1,3-di-hydroxyxanthen-9-one with N-bromo-succinimide. The mol-ecular conformation is essentially planar, the dihedral angle between the benzene rings being 1.1 (4)°. This conformation is favorable for the formation of an intra-molecular O-H⋯O hydrogen bond between a hy-droxy group and the xanthone carbonyl group. In the cr ...[more]

PMID: 24109423

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