New Synthesis ofβ-Anilinochalcones by Regioselective Oxidation ofβ-Anilinodihydrochalcones Using Iodine–DMSO

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β-Anilinodihydrochalcones readily undergo oxidation α to the carbonyl group region in the presence of a catalytic amount of iodine in dimethyl sulfoxide at 130 °C in good yield. Oxidation of allyloxy-substituted β-anilinodihydrochalcones to β-anilinochalcones is a preferred reaction over deallylation.