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Benzoic acid or p-hydroxybenzoic acid undergoes rapid reaction with alcohol using H2SO4 as catalyst at normal pressure, under irradiating continuously of the 1 GHz and 50 mW microwave for 22–60 minutes to afford aromatic esters in 76–90%yields.
This work is supported by the Provincial Natural Science Foundation of Jiangsu. The analyses work was partially supported by the Center of Materials Analysis, Nanjing University.
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