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Benzofuranones are commonly found in natural products,pharmaceuticals,antioxidants and biologically active compounds.1 We have developed a protocol for efficient synthesis of 3-aryl benzofuran-2(3H)-ones under solvent-free condition from phenols and mandelic acids using Ni(OTf)2 as catalyst.A diverse range of mandelic acids and phenols undergo C?H/O?H bond dual functionalization to generate products in good yields.