Treatment of chalcones with 3 equiv of thallium(III) nitrate (TTN) in aqueous acidic glyme results in formation of benzils by means of a discrete series of three independent oxidations involving the intermediacy of deoxybenzoins and then benzoins. This reaction constitutes a simple and convenient method for the synthesis

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The reactions of a variety, of acetylenes with thallium(III) nitrate (TTN) have been examined, and the nature of the products has been found to depend on the solvent employed and the structure of the acetylene.