Mo(O)(O2)2L′L″ [L′ = H2O, L″ = hexamethylphosphoramide (HMPA) 1; L′ = L″ = triphenylphosphine oxide (TPPO) 2] reacts with primary aliphatic amines to give cis-dioxoperoxo complexes, Mo(O)2(O2)(RNH2)2 [R = C6H5CH23, 2,4-Cl2-C6H3CH24, 2,4-(OCH3)2-C6H3CH25, C6H116; 4-Cl-C6H4CH27, 2-Cl-C6H4CH28] and the corresponding oximes. Secondary aliphatic amines, 1,2,3,4-tetrahydroisoquinoline, dipropylamine and dibenzylamine, give the analogous complexes and the corresponding Schiff bases. Complexes 3 and 6 act as catalysts in the oxidation respectively of benzylamine to benzaldehyde oxime and of cyclohexylamine to cyclohexanone oxime with H2O2 at room temperature.
Oxidation of primary and secondary aliphatic amines by Mo(O)(O2)2L′L″ (L′ = H2O, L″ = hexamethylphosphoramide) / F. Porta, S. Tollari, F. Ragaini, C. Crotti (STUDIES IN SURFACE SCIENCE AND CATALYSIS). - In: Dioxygen Activation and Homogeneous Catalytic Oxidation / [a cura di] L.I. Simándi. - [s.l] : Elsevier, 1991. - ISBN 978-0-444-88876-1. - pp. 531-536 (( Intervento presentato al 4. convegno International Symposium on Dioxygen Activation and Homogeneous Catalytic Oxidation [10.1016/S0167-2991(08)62873-6].
Oxidation of primary and secondary aliphatic amines by Mo(O)(O2)2L′L″ (L′ = H2O, L″ = hexamethylphosphoramide)
F. Porta;S. Tollari;F. Ragaini;
1991
Abstract
Mo(O)(O2)2L′L″ [L′ = H2O, L″ = hexamethylphosphoramide (HMPA) 1; L′ = L″ = triphenylphosphine oxide (TPPO) 2] reacts with primary aliphatic amines to give cis-dioxoperoxo complexes, Mo(O)2(O2)(RNH2)2 [R = C6H5CH23, 2,4-Cl2-C6H3CH24, 2,4-(OCH3)2-C6H3CH25, C6H116; 4-Cl-C6H4CH27, 2-Cl-C6H4CH28] and the corresponding oximes. Secondary aliphatic amines, 1,2,3,4-tetrahydroisoquinoline, dipropylamine and dibenzylamine, give the analogous complexes and the corresponding Schiff bases. Complexes 3 and 6 act as catalysts in the oxidation respectively of benzylamine to benzaldehyde oxime and of cyclohexylamine to cyclohexanone oxime with H2O2 at room temperature.
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