Oxidation of Saturated Hydrocarbons with Peroxyacetic Acid Catalyzed by Vanadium Complexes

Oxidation of Saturated Hydrocarbons with Peroxyacetic Acid Catalyzed by Vanadium Complexes PDF Author:
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Languages : en
Pages :

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Oxidation of Saturated Hydrocarbons with Peroxyacetic Acid Catalyzed by Vanadium Complexes

Oxidation of Saturated Hydrocarbons with Peroxyacetic Acid Catalyzed by Vanadium Complexes PDF Author:
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Languages : en
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Oxidation of Organic Compounds: Gas-phase oxidations, homogeneous and heterogeneous catalysis, applied oxidations and synthetic processes

Oxidation of Organic Compounds: Gas-phase oxidations, homogeneous and heterogeneous catalysis, applied oxidations and synthetic processes PDF Author:
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 456

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Oxidation of Saturated Hydrocarbons Catalyzed by Metal Porphyrin Complexes

Oxidation of Saturated Hydrocarbons Catalyzed by Metal Porphyrin Complexes PDF Author: Tanshisa Inpornvichitr
Publisher:
ISBN: 9789740313113
Category : Catalysts
Languages : en
Pages : 138

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The present developed oxidation of saturated hydrocarbons could beperformed at room temperature and atmospheric pressure using metalporphyrin complex as a catalyst, zinc grit/air as an oxidant in apyridine-acetic acid media. Ketone was obtained as a major productselectively. From the screening for appropriate metalloporphyrin, Fe(II)-porphyrin complex provided the best result. The variation of thesubstituent on a phenyl ring revealed thattetra(3,4,5-trimethoxyphenyl)-porphyrin iron (II) complex was the promisingcatalyst in this developed system. Chemoselectivity study disclosed thatadditives in this system affected ketone/alcohol ratio and the amount ofthe desired products. From chemical evidence, possibly alkyl hydroperoxidewas an intermediate of the reaction and believed not to take place ~ivia~iradical pathway. In addition, regioselectivity study on the oxidation ofl~iert~i-butylcyclohexane and ~in~i-pentane exhibited that the oxidationreaction under this particular condition occurred more selectively compared withthat using TBHP as an oxidant.

Frontiers of Green Catalytic Selective Oxidations

Frontiers of Green Catalytic Selective Oxidations PDF Author: Konstantin P. Bryliakov
Publisher: Springer Nature
ISBN: 9813297514
Category : Science
Languages : en
Pages : 295

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The demand for novel efficient and environmentally sustainable chemo, regio- and stereoselective catalyst systems for the oxidation of organic substrates is continuously growing in line with toughening economic and environmental constraints. This book addresses these issues; it consists of eleven chapters written by world-recognized experts in green and sustainable oxidation catalysis. The most urgent and challenging topics, in the judgment of the editor, such as green asymmetric epoxidations, sulfoxidatiuons, C–H oxidations; oxidation catalysis by polyoxometalates and oxidations in non-conventional solvents, etc. have been critically reviewed in this book. Both fundamental aspects, such as catalysts design, catalytic properties, nature of catalytically active sites and reaction mechanisms, and practical outlook of the oxidations have been addressed by the authors. The book appeals to a broad readership, particularly graduate students, employees of universities and research organizations, and industrial researchers, particularly those working in the areas of homogeneous oxidation catalysis, asymmetric synthesis, organocatalysis, sustainable catalytic processes and green chemistry, mechanisms of catalytic reactions, synthesis of bioactive compounds, biomimetic chemistry, etc. Konstantin Bryliakov is Leading Researcher at the Boreskov Institute of Catalysis. In 2016, he was elected Honorary Professor of the Russian Academy of Sciences.

Iron and Vanadium Complexes for the Catalytic Oxidation of Hydrocarbons

Iron and Vanadium Complexes for the Catalytic Oxidation of Hydrocarbons PDF Author: Laura González Cuervo
Publisher:
ISBN:
Category :
Languages : en
Pages : 194

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Iron and Vanadium Complexes for the Catalytic Oxidation of Hydrocarbons: Chemical Catalysts and Biomimetic Models

Iron and Vanadium Complexes for the Catalytic Oxidation of Hydrocarbons: Chemical Catalysts and Biomimetic Models PDF Author:
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Category :
Languages : fr
Pages :

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Le but de ce travail de thèse, était, d'une part, d'étudier l'activité catalytique des nouveaux complexes de vanadium pour la fonctionnalisation oxydante d'alcanes (le méthane inclus) et, d'autre part, d'élargir l'étude aux complexes de fer dans l'esprit de modeler des enzymes monooxygénases. Deux polyoxomolybdates contenant des atomes de vanadium(V) ont été testés comme catalyseurs pour l'oxydation des alcanes utilisant de l'eau oxygénée et de l'air comme oxydants. Cinq nouveaux complexes de vanadium(IV) et (V) ont été synthétisés et analysés par les techniques spectroscopiques courantes (IR, RMN, MS), par microanalyses, et ses structures ont été obtenues lors des analyses par diffraction des rayons X. Ces complexes ont été testés comme catalyseurs pour l'oxydation des alcanes en utilisant de l'eau oxygénée et de l'air comme oxydants. Un nouveau système catalytique, qui utilise l'acide peroxyacetique comme oxydant et un composé de vanadium comme catalyseur, a été testé avec succès dans l'oxydation des alcanes, et l'étude cinétique complète nous a conduit à proposer un mécanisme catalytique. Trois sels de fer(III) ont été testés comme catalyseurs pour l'oxydation des alcanes et une étude cinétique complète a suggéré que le mécanisme catalytique n'était pas le même pour les trois sels. Deux complexes dinucléaires de fer(III) contenant des ligands chelatants N- et N, O- ont été aussi testés avec succès comme catalyseurs pour l'oxydation des alcanes avec de l'eau oxygénée et l'air comme oxydants. Les résultats obtenus concluent que ces deux complexes peuvent être considérés comme modèles fonctionnels pour des enzymes monooxygénases, comme le méthane monooxygénase et l'hémérythrine.

Activation and Catalytic Reactions of Saturated Hydrocarbons in the Presence of Metal Complexes

Activation and Catalytic Reactions of Saturated Hydrocarbons in the Presence of Metal Complexes PDF Author: A.E. Shilov
Publisher: Springer Science & Business Media
ISBN: 9781402004209
Category : Science
Languages : en
Pages : 556

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Book Description
hemistry is the science about breaking and forming of bonds between atoms. One of the most important processes for organic chemistry is breaking bonds C–H, as well as C–C in various compounds, and primarily, in hydrocarbons. Among hydrocarbons, saturated hydrocarbons, alkanes (methane, ethane, propane, hexane etc. ), are especially attractive as substrates for chemical transformations. This is because, on the one hand, alkanes are the main constituents of oil and natural gas, and consequently are the principal feedstocks for chemical industry. On the other hand, these substances are known to be the less reactive organic compounds. Saturated hydrocarbons may be called the “noble gases of organic chemistry” and, if so, the first representative of their family – methane – may be compared with extremely inert helium. As in all comparisons, this parallel between noble gases and alkanes is not fully accurate. Indeed the transformations of alkanes, including methane, have been known for a long time. These reactions involve the interaction with molecular oxygen from air (burning – the main source of energy!), as well as some mutual interconversions of saturated and unsaturated hydrocarbons. However, all these transformations occur at elevated temperatures (higher than 300–500 °C) and are usually characterized by a lack of selectivity. The conversion of alkanes into carbon dioxide and water during burning is an extremely valuable process – but not from a chemist viewpoint.

Catalytic Oxidation Reagents

Catalytic Oxidation Reagents PDF Author: Philip L. Fuchs
Publisher: John Wiley & Sons
ISBN: 1118704843
Category : Science
Languages : en
Pages : 2037

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Book Description
The Handbook is part of the Handbook of Reagents for Organic Chemistry series, aiming at collecting articles on a particular theme that individual researchers in academia or industry can use on a daily basis. The Handbook starts with a section discussing the most important aspects of heteroarene functionalization. The introduction is followed by the alphabetical listing of the most relevant reagents drawn from the EROS database. The Editor, André Charette from the University of Montreal, has selected 120 reagent descriptions, many of them updated with heteroarene-specific reactions for this Handbook. Following the standard format for EROS, each article contains an overview of the synthesis and physical properties of the reagents or catalyst, conditions for its storage, and purification methods. Given the importance of heteroarenes in biology and especially in medicinal chemistry, a Handbook that focuses exclusively on heteroarene functionalization has been long overdue. This Handbook will have a broad appeal to many individuals engaged in the area of medicinal chemistry, fine chemical synthesis and industrial-scale chemistry. Key features: Builds on the success of the previously published Handbooks of Reagents for Organic Synthesis Compares the numerous new C-H functionalization reactions that have been developed in the past decade Heteroarene functionalization is widely used in the development of pharmaceuticals and other bioactive compounds Contains listings of secondary reagents for which more information is available in the online edition

Organic Reaction Mechanisms 1989

Organic Reaction Mechanisms 1989 PDF Author: A. C. Knipe
Publisher: John Wiley & Sons
ISBN: 0470066822
Category : Science
Languages : en
Pages : 722

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Book Description
The only book series to summarize the latest progress on organic reaction mechanisms, Organic Reaction Mechanisms, 1989 surveys the development in understanding of the main classes of organic reaction mechanisms reported in the primary scientific literature in 1989. The 25th annual volume in this highly successful series highlights mechanisms of stereo-specific reactions. Reviews are compiled by a team of experienced editors and authors, allowing advanced undergraduates, graduate students, postdocs, and chemists to rely on the volume's continuing quality of selection and presentation.

Catalytic Oxidations with Hydrogen Peroxide as Oxidant

Catalytic Oxidations with Hydrogen Peroxide as Oxidant PDF Author: G. Strukul
Publisher: Springer Science & Business Media
ISBN: 940170984X
Category : Science
Languages : en
Pages : 287

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Book Description
Hydrogen peroxide is a chemical that is becoming increasingly fashionable as an oxidant, both in industry and in academia and whose production is expected to increase significantly in the next few years. This growth in interest is largely due to environmental considerations related to the clean nature of hydrogen peroxide as an oxidant, its by-product being only water. To date this chemical has largely been employed as a non-selective oxidant in operations like the bleaching of paper, cellulose and textiles, or in the formulation of detergents, and only to a minimal extent in the manufacture of organic chemicals. This book has been organized to cover the different aspects of the chemistry of hydrogen peroxide. The various chapters into which the book is divided have been written critically by the authors with the general aim of stimulating new ideas and emphasizing those aspects that are likely to lead to new developments in organic synthesis in the coming future.