Concise synthesis of flavocommelin, 7-O-methylapigenin 6-C-, 4′-O-bis-β-d-glucoside, a component of the blue supramolecular pigment from Commelina communis

• Flavocommelin was synthesized via in 9 steps from phloroacetophenone bisether in 31% yield.
• Regioselective O-debenzylation followed by cyclization were achieved.
• Final O-deacetylation and O-glycosylation proceeded regio- and stereoselectively.

Flavocommelin, 7-O-methylapigenin 6-C-, 4′-O-bis-β-d-glucoside, was synthesized in 9 steps from the C-glycosylation of 6-O-benzy-4-O-methylphloroacetophenone via the introduction of a cinnamoyl residue by aldol condensation and the formation of a C-ring by regioselective and oxidative ring-closure to regio- and stereoselective O-glycosylation for an overall yield of 31%.

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