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9-(4-Chloro-phen-yl)-4a-hy-droxy-4,4a,5,6,9,9a-hexa-hydro-3H-xanthene-1,8(2H,7H)-dione.

ABSTRACT: In the title compound, C(19)H(19)ClO(4), the central fused ring and the attached cyclo-hexene ring adopt envelope conformations, while the cyclo-hexane ring adopts a chair conformation. The crystal packing is stabilized by O-H?O hydrogen bonds, which link the mol-ecules into a chain along the b axis. Weak C-H?O bonds also occur.

SUBMITTER: Yang Y

PROVIDER: S-EPMC3200887 | biostudies-other | 2011 Sep

REPOSITORIES: biostudies-other

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9-(4-Chloro-phen-yl)-4a-hy-droxy-4,4a,5,6,9,9a-hexa-hydro-3H-xanthene-1,8(2H,7H)-dione.

Yang Yan Y Lu Weicheng W Lian Chaomei C Zhu Yulin Y

Acta crystallographica. Section E, Structure reports online 20110827 Pt 9

In the title compound, C(19)H(19)ClO(4), the central fused ring and the attached cyclo-hexene ring adopt envelope conformations, while the cyclo-hexane ring adopts a chair conformation. The crystal packing is stabilized by O-H⋯O hydrogen bonds, which link the mol-ecules into a chain along the b axis. Weak C-H⋯O bonds also occur. ...[more]

PMID: 22058985

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9-(2,3-Dichloro-phen-yl)-4a-hydr-oxy-3,3,6,6-tetra-methyl-4,4a,5,6,9,9a-hexa-hydro-3H-xanthene-1,8(2H,7H)-dione.

Project description:Mol-ecules of the title compound, C(23)H(26)Cl(2)O(4), are linked by hydrogen bonds between the hydroxyl O atom and the carbonyl O atom of a neighboring mol-ecule. The central hydropyran and fused cyclohexanone rings adopt half-chair conformations, while the fused hydroxycyclohexanone ring adopts a chair conformation.

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