Oxidation of benzoins to benzils using bismuth(III) nitrate-copper(II) acetate
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چکیده
منابع مشابه
Alumina and silica oxides as catalysts for the oxidation of benzoins to benzils under solvent-free conditions.
Alumina or silica gel are used as catalysts for a solvent-free oxidation of benzoins to the corresponding benzils. These catalysts are easily recovered after completion of the reactions, which are carried out either by heating in a sand bath or using microwave irradiation. Comparison of the results obtained with both catalysts indicates that all the reactants examined were oxidized faster on al...
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Oxidation of some benzoins to benziles is reported by using p-toluenesulfonic acid as aselective oxidation catalyst under solvent-free condition in high yield. The adjacent carbonylgroup is necessary for the oxidation of hydroxyl group in these compounds. The reaction iscarried out in a sand-bath at 100 °C with minimum by-products.
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When a mixture of a few benzoins and a pyridine N-oxide SbC15 (1 : 1) complex (Complex A) was boiled in nitromethane, the corresponding benzils were obtained in various yields dependent upon the kinds of substituents in each reactant. The yield of benzil becames higher by adding some tertiary amines. In this reaction, tribenzylamine is a good accelerator to promote it. When Complex A, 4-picolin...
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ژورنال
عنوان ژورنال: Tetrahedron Letters
سال: 1999
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(99)01583-x