Benzophenones xanthones and stilbenes

Benzophenones and xanthones have a C6-Ci-C6 structure, whereas stilbenes have a C6-C2-C6 structure. Xanthones are yellow pigments in flowers, and stilbenes are associated with heartwood of trees. Shown are the structures of benzophenone, (1.58), xanthone (1.59), and the stilbenes resveratrol (1.60) and pinosylvin (1.61).

(1.60) (1.61)

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