The inorganic–organic hybrid material {[MoO3(bipy)][MoO3(H2O)]}n (bipy = 2,20-bipyridine) can be used as a water-tolerant catalyst for the oxidation of secondary amines under mild conditions using either urea hydrogen peroxide (UHP) or tert-butylhydroperoxide (TBHP) as the oxidant. Under optimized reaction conditions (2 mol % catalyst, 3–4 equiv TBHP, CH2Cl2 as the solvent, 40 C), the corresponding nitrones were obtained with different efficiency depending on the nature of the cyclic or acyclic amine used.
Molybdenum Oxide/Bipyridine Hybrid Material {[MoO3(bipy)][MoO3(H2O)]}n as Catalyst for the Oxidation of Secondary Amines to Nitrones / M. Abrantes; I. S. Gonçalves; M. Pillinger; C. Vurchio; F. M. Cordero; A. Brandi. - In: TETRAHEDRON LETTERS. - ISSN 0040-4039. - STAMPA. - 52:(2011), pp. 7079-7082. [10.1016/j.tetlet.2011.10.079]
Molybdenum Oxide/Bipyridine Hybrid Material {[MoO3(bipy)][MoO3(H2O)]}n as Catalyst for the Oxidation of Secondary Amines to Nitrones
VURCHIO, CAROLINA;CORDERO, FRANCA MARIA;BRANDI, ALBERTO
2011
Abstract
The inorganic–organic hybrid material {[MoO3(bipy)][MoO3(H2O)]}n (bipy = 2,20-bipyridine) can be used as a water-tolerant catalyst for the oxidation of secondary amines under mild conditions using either urea hydrogen peroxide (UHP) or tert-butylhydroperoxide (TBHP) as the oxidant. Under optimized reaction conditions (2 mol % catalyst, 3–4 equiv TBHP, CH2Cl2 as the solvent, 40 C), the corresponding nitrones were obtained with different efficiency depending on the nature of the cyclic or acyclic amine used.
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