Here we describe modified syntheses of o-acetylbenzoic acids and o-acetylphenylacetic acids by Heck palladium-catalysed arylation of n-butyl vinyl ether with o-iodobenzoic acids or with o-iodophenylacetic acids, respectively. General syntheses of benzo[b]naphtho[2,3-b]furan-6,11-diones from o-acetylbenzoic acids and 2-benzyl-3-hydroxynaphthalene-1,4-diones from o-acetylphenylacetic acids are also reported.
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