3,5-Dimethoxybenzoic acid 3 has been transformed into olivetol dimethyl ether 6 in three steps in 79% yield. Directed ortho-metallation-alkylation of 6, followed by boron tribromide demethylation resulted in a simple and inexpensive synthesis of resorstatin, in 70% overall yield from 3.
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Combes et al. (1997) studied this question.
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