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Orientador(es)
Resumo(s)
The benzoyl hydrazone based dimeric dicopper(II) complex [Cu2(R)(CH3O)(NO3)]2(CH3O)2 (R-Cu2+),
recently reported by us, catalyzes the aerobic oxidation of catechols (catechol (S1), 3,5- itertiarybutylcatechol
(S2) and 3-nitrocatechol (S3)) to the corresponding quinones (catecholase like activity), as shown by UV–Vis absorption spectroscopy in methanol/HEPES buffer (pH 8.2) medium at 25 C. The highest activity is observed for the substituted catechol (S2) with the electron donor tertiary butyl group, resulting in a turnover frequency (TOF) value of 1.13 103 h1. The complex R-Cu2+ also exhibits a good catalytic activity in the oxidation (without added solvent) of 1-phenylethanol to acetophenone by But OOH under low power (10 W) microwave (MW) irradiation. 2014 Elsevier B.V. All rights reserved.
Descrição
Palavras-chave
Hydrazone Dimeric dicopper(II) complex Catechol Alcohol oxidation Solvent free catalysis
Contexto Educativo
Citação
ANBU, Sellamuthu; ALEGRIA, Elisabete C.B.A.; POMBEIRO, Armando J.L.; - Catalytic activity of a benzoyl hydrazone based dimeric dicopper(II) complex in catechol and alcohol oxidation reactions. Inorganica Chimica Acta. ISSN. 0020-1693. Vol. 431 (2015), pp. 139-144
Editora
Elsevier Science SA