Catalytic oxidation of cyclohexane by a binuclear Fe(III) complex biomimetic to methane monooxygenase.
A novel binuclear Fe(III) complex [Fe(III)(BPMP)Cl(mu-O)Fe(III)Cl3] (1) was prepared from the reaction between (bis(2-pyridylmethyl)-1,4-piperazine) and [Fe(OH2)6]Cl3, in acetonitrile. The title compound was characterized by spectroscopic, electrochemical and X-ray crystallography analysis. The catalytic activity of the complex was evaluated through cyclohexane oxidation, using hydrogen peroxide as the terminal oxidant. Reaction products were identified by gas chromatography. Conversions up to 19.2% were observed (12.6% and 6.6% yields for cyclohexanol and cyclohexanone, respectively). The catalytic activity exhibited by 1 suggests that it can be considered as a functional biomimetic analog to methane monooxygenase.
Esmelindro
Maria Carolina
MC
Instituto de Química, Universidade Federal do Rio de Janeiro, CT Bloco A, Lab 641, Cidade Universitária, Rio de Janeiro RJ-21945-970, Brazil.
Oestreicher
Enrique G
EG
Márquez-Alvarez
Heiddy
H
Dariva
Cláudio
C
Egues
Sílvia M S
SM
Fernandes
Christiane
C
Bortoluzzi
Adailton J
AJ
Drago
Valderes
V
Antunes
O A C
OA
D040761:Biomimetic Materials; D002384:Catalysis; D018360:Crystallography, X-Ray; D003510:Cyclohexanes / Q000737:chemistry*; D004563:Electrochemistry; D058085:Iron Compounds / Q000737:chemistry*; D008024:Ligands; D010084:Oxidation-Reduction; D010105:Oxygenases / Q000737:chemistry* / Q000378:metabolism; D013057:Spectrum Analysis
D003510:Cyclohexanes; D058085:Iron Compounds; D008024:Ligands; D010105:Oxygenases; C021555:methane monooxygenase