18404

p-Toluenesulfonic acid a useful and selective reagent for the oxidation of benzoins to benziles under solvent-free condition.

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Oxidation of some benzoins to benziles is reported by using p-toluenesulfonic acid as a selective oxidation catalyst under solvent-free condition in high yield. The adjacent carbonyl group is necessary for the oxidation of hydroxyl group in these compounds. The reaction is carried out in a sand-bath at 100 °C with minimum by-products.

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