The Co(II)-catalysed oxidation of alkyl- and aryl-sulfides was achieved under homogeneous and heterogeneous conditions using oxygen or air as the oxidant in the presence of excess aldehyde. The reactions in the homogeneous phase were carried out using the soluble Co(acac)(2) or Co(AAEMA)(2) complexes (AAEMA(-) = deprotonated form of 2-(acetoacetoxy)ethyl methacrylate) whereas the heterogeneous catalytic tests were carried out using the copolymers obtained by reaction of Co(AAEMA)(2) with acrylamides. Under suitable conditions excellent conversions and very good selectivities were achieved both in homogeneous and in heterogeneous phase. The supported complexes were recyclable with negligible loss of efficiency and did not suffer from metal leaching.

Aerobic oxidation of sulfides catalysed by cobalt(II) complexes under homogeneous and heterogeneous conditions / Dell'Anna, Maria M.; Mastrorilli, Piero; Nobile, Cosimo F.. - In: JOURNAL OF MOLECULAR CATALYSIS. A: CHEMICAL. - ISSN 1381-1169. - STAMPA. - 108:2(1996), pp. 57-62. [10.1016/1381-1169(95)00302-9]

Aerobic oxidation of sulfides catalysed by cobalt(II) complexes under homogeneous and heterogeneous conditions

Maria M. Dell'Anna;Piero Mastrorilli;Cosimo F. Nobile
1996-01-01

Abstract

The Co(II)-catalysed oxidation of alkyl- and aryl-sulfides was achieved under homogeneous and heterogeneous conditions using oxygen or air as the oxidant in the presence of excess aldehyde. The reactions in the homogeneous phase were carried out using the soluble Co(acac)(2) or Co(AAEMA)(2) complexes (AAEMA(-) = deprotonated form of 2-(acetoacetoxy)ethyl methacrylate) whereas the heterogeneous catalytic tests were carried out using the copolymers obtained by reaction of Co(AAEMA)(2) with acrylamides. Under suitable conditions excellent conversions and very good selectivities were achieved both in homogeneous and in heterogeneous phase. The supported complexes were recyclable with negligible loss of efficiency and did not suffer from metal leaching.
1996
Aerobic oxidation of sulfides catalysed by cobalt(II) complexes under homogeneous and heterogeneous conditions / Dell'Anna, Maria M.; Mastrorilli, Piero; Nobile, Cosimo F.. - In: JOURNAL OF MOLECULAR CATALYSIS. A: CHEMICAL. - ISSN 1381-1169. - STAMPA. - 108:2(1996), pp. 57-62. [10.1016/1381-1169(95)00302-9]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11589/5091
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