English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

The title compound, C 20 H 20 O 5 , was synthesized from the reaction between 3-methoxysalicaldehyde and 1,3–cyclo­hexa­nedione in the presence of palladium(II) chloride. The two fused xanthene rings and one of the six-membered cyclo­hexane rings adopt envelope conformations, while the other six-membered cyclo­hexane ring is in a chair conformation. The mol­ecular packing is stabilized by weak inter­molecular C—H⋯O inter­actions.

14-Methoxy-2,16-dioxapentacyclo[7.7.5.01,21.03,8.010,15]henicosa-3(8),10,12,14-tetraene-7,20-dione

14-Methoxy-2,16-dioxapentacyclo[7.7.5.0^1,21.0^3,8.0^10,15]henicosa-3(8),10,12,14-tetraene-7,20-dione