A new approach for the total synthesis of the active stilbene dimer dehydro-δ-viniferin has been achieved in 9 steps with methyl 4-hydroxybenzoate and 3,5-dihydroxyacetophenone as starting materials. The key feature of the method is the amberlyst 15-mediated cyclodehydration of α-aryloxyketone. [Formula: see text].
Keywords: Stilbene dimer; amberlyst 15; dehydro-δ-viniferin; total synthesis.