Journal ArticleDOI
Control of the catalytic oxidations mediated by an oxo-bridged non-heme diiron complex: role of additives and reaction conditions.
TLDR
In this paper, the authors investigated the catalytic activity of compound 1 with H2O2 for functionalization of alkenes and showed that compound 1 is an efficient catalyst for cyclohexane oxidation leading to an alcohol:ketone ratio of 3.5.Abstract:
The catalytic activity of {[Fe(mebpa)Cl]2O}(ClO4)2 (1) (mebpa = N-(2-methoxyethyl)-N,N-bis(pyridin-2-yl-methyl)amine) with H2O2 for the functionalization of alkanes and alkenes has been investigated. The experimental results show that compound 1 is stable during the catalytic cycle and it is an efficient catalyst for cyclohexane oxidation leading to an alcohol:ketone ratio of 3.5. Compound 1 is also found to be an active and selective catalyst for the epoxidation of alkenes. In all cases, the catalytic efficiency is strongly dependent on the presence of additives and the reaction conditions. © 2004 Elsevier B.V. All rights reserved.read more
Citations
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Journal ArticleDOI
Chemo- and stereoselective CH oxidations and epoxidations/cis-dihydroxylations with H2O2, catalyzed by non-heme iron and manganese complexes
TL;DR: In this article, a review of catalytically active species and mechanisms of their action are summarized, with major focus on the their synthetic potential, and a detailed discussion of their properties and properties are presented.
Journal ArticleDOI
C–H functionalization: thoroughly tuning ligands at a metal ion, a chemist can greatly enhance catalyst's activity and selectivity
TL;DR: E elegant examples of alkane functionalization on the ions of non-transition metals (aluminium, gallium etc.) are described when one ligand within the metal complex (namely, hydroperoxyl ligand HOO(-)) helps other ligand of this complex to disintegrate into two species, generating very reactive hydroxyl radical.
Journal ArticleDOI
Pyrazinecarboxylic acid and analogs: Highly efficient co-catalysts in the metal-complex-catalyzed oxidation of organic compounds
TL;DR: In this article, the use of 2-pyrazinecarboxylic acid (Hpca) and analogous heteroaromatic acids (H 2 pdca), picolinic (Hpic), and dipicolinic(H 2 dipic) acids as co-catalysts is discussed.
Journal ArticleDOI
Molecular iron complexes as catalysts for selective C–H bond oxygenation reactions
TL;DR: Developments of the last decade regarding oxygenation reactions of aliphatic and aromatic substrates with various oxidants catalysed by molecular iron complexes are summarized.
Journal ArticleDOI
Homogeneous and heterogenised new gold C-scorpionate complexes as catalysts for cyclohexane oxidation
M. Peixoto de Almeida,Luísa M. D. R. S. Martins,Sónia A. C. Carabineiro,Tobias Lauterbach,Frank Rominger,Ayesha Hashmi,Ayesha Hashmi,Armando J. L. Pombeiro,José L. Figueiredo +8 more
TL;DR: Gold(III) complexes of type [AuCl2{η2-RC(R′pz)3}] were supported on carbon materials (activated carbon, carbon xerogel and carbon nanotubes) as mentioned in this paper.
References
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Journal ArticleDOI
Activation of c-h bonds by metal complexes
A. E. Shilov,Georgiy B. Shul'pin +1 more
TL;DR: In this article, it was shown that the same alkylhydridoplatinum(IV) complex is the intermediate in the reaction of ethane with platinum(II) σ-complexes.
Journal ArticleDOI
Dioxygen activation at mononuclear nonheme iron active sites: enzymes, models, and intermediates.
Journal ArticleDOI
Cyclohexane oxidation continues to be a challenge
Ulf Schuchardt,Dilson Cardoso,Ricardo Sercheli,Ricardo Pereira,Rosenira Serpa da Cruz,Mário César Guerreiro,Dalmo Mandelli,Estevam V. Spinacé,Emerson L. Pires +8 more
TL;DR: In this article, the most interesting systems for the cyclohexane synthesis with different oxidants such as hydrogen peroxide, tert -butyl hydroperoxide and molecular oxygen were reviewed.
Journal ArticleDOI
Nonheme FeIVO complexes that can oxidize the C-H bonds of cyclohexane at room temperature.
József Kaizer,Eric J. Klinker,Na Young Oh,Jan Uwe Rohde,Woon Ju Song,Audria Stubna,Jinheung Kim,Eckard Münck,Wonwoo Nam,Lawrence Que +9 more
TL;DR: Nonheme oxoiron(IV) complexes of two pentadentate ligands have been generated and found to have spectroscopic properties similar to the closely related tetradentate TPA (tris(2-pyridylmethyl)amine) complex reported earlier.
Journal ArticleDOI
Biomimetic nonheme iron catalysts for alkane hydroxylation
TL;DR: In this review, the efforts of the last 10 years in the development of nonheme iron catalysts are summarized and discussed.