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Orientador(es)
Resumo(s)
The catalytic peroxidative oxidation (with H2O2) of cyclohexane in an ionic liquid (IL) using the tetracopper(II) complex [(CuL)2(μ4-O,O′,O′′,O′′′-CDC)]2·2H2O [HL = 2-(2-pyridylmethyleneamino)benzenesulfonic acid, CDC = cyclohexane-1,4-dicarboxylate] as a catalyst is reported. Significant improvements on the catalytic performance, in terms of product yield (up to 36%), TON (up to 529), reaction time, selectivity towards cyclohexanone and easy recycling (negligible loss in activity after three consecutive runs), are observed using 1-butyl-3-methylimidazolium hexafluorophosphate as the chosen IL instead of a molecular organic solvent including the commonly used acetonitrile. The catalytic behaviors in the IL and in different molecular solvents are discussed.
Descrição
Palavras-chave
Tetranuclear copper complex Catalysis Alkane functionalization Peroxidative oxidation of cyclohexane Ionic liquid Electrochemistry Ionic conductivity
Contexto Educativo
Citação
RIBEIRO, Ana P. C.; [et al.] - Catalytic oxidation of cyclohexane with hydrogen peroxide and a tetracopper(II) complex in an ionic liquid. Comptes Rendus Chimie. ISSN.1631-0748 . Vol. 18, N.º 7 (2015), pp. 758-765
Editora
ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER