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.

中文翻译：

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活性白藜芦醇二聚体脱氢-δ-viniferin的全合成。

以4-羟基苯甲酸甲酯和3,5-二羟基苯乙酮为起始原料，通过9个步骤完成了活性二苯乙烯二聚体脱氢-δ- viniferin全合成的新方法。该方法的关键特征是琥珀酸15介导的α-芳氧基酮的环脱水。