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14-Methoxy-2,16-dioxapentacyclo[7.7.5.0.0.0]henicosa-3(8),10,12,14-tetraene-7,20-dione.

ABSTRACT: The title compound, C(20)H(20)O(5), was synthesized from the reaction between 3-methoxysalicaldehyde and 1,3-cyclo-hexa-nedione in the presence of palladium(II) chloride. The two fused xanthene rings and one of the six-membered cyclo-hexane rings adopt envelope conformations, while the other six-membered cyclo-hexane ring is in a chair conformation. The mol-ecular packing is stabilized by weak inter-molecular C-H?O inter-actions.

SUBMITTER: Lu W

PROVIDER: S-EPMC3213550 | biostudies-literature | 2011 Aug

REPOSITORIES: biostudies-literature

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14-Methoxy-2,16-dioxapentacyclo[7.7.5.0.0.0]henicosa-3(8),10,12,14-tetraene-7,20-dione.

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

Acta crystallographica. Section E, Structure reports online 20110723 Pt 8

The title compound, C(20)H(20)O(5), was synthesized from the reaction between 3-methoxysalicaldehyde and 1,3-cyclo-hexa-nedione in the presence of palladium(II) chloride. The two fused xanthene rings and one of the six-membered cyclo-hexane rings adopt envelope conformations, while the other six-membered cyclo-hexane ring is in a chair conformation. The mol-ecular packing is stabilized by weak inter-molecular C-H⋯O inter-actions. ...[more]

PMID: 22091127

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14-Bromo-12-chloro-2,16-dioxa-penta-cyclo-[7.7.5.0(1,21).0(3,8).0(10,15)]henicosa-3(8),10,12,14-tetra-ene-7,20-dione.

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