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Catalytic And Asymmetric Organic Oxidations By Chiral Oxorutheniumiv And Cis Dioxorutheniumvi Complexes With Nitrogen Donor Ligands
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Book Synopsis Privileged Chiral Ligands and Catalysts by : Qi-Lin Zhou
Download or read book Privileged Chiral Ligands and Catalysts written by Qi-Lin Zhou and published by Wiley-VCH. This book was released on 2011-05-16 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt: Catalytic asymmetric synthesis has been one of the most active research areas in chemistry (Nobel Prize in 2001). The development of efficient chiral catalysts plays a crucial role in asymmetric catalysis. Although many chiral ligands/catalysts have been developed in the past decades, the most efficient catalysts are derived from a few core structures, called "privileged chiral catalysts". This ultimate "must have" and long awaited reference for every chemist working in the field of asymmetric catalysis starts with the core structure of the catalysts, explaining why a certain ligand or catalyst is so successful. It describes in detail the history, the basic structural characteristics, and the applications of these "privileged catalysts". This novel presentation provides readers with a much deeper insight into the topic and makes it a must-have for organic chemists, catalytic chemists, chemists working with/on organometallics, chemists in industry, and libraries. From the contents: * BINAP * Bisphosphacycles - From DuPhos and BPE to a Diverse Set of Broadly Applied Ligands * Josiphos Ligands: From Discovery to Technical Applications * Chiral Spiro Ligands * Chiral Bisoxazoline Ligands * PHOX Ligands * Chiral Salen Complexes * BINOL * TADDOLate Ligands * Cinchona Alkaloids * Proline Derivatives
Book Synopsis Chiral Iron Pyridine Complexes and Ruthenium Complexes with N-Heterocyclic Carbene and Macrocyclic (N, O) Donor Atom Ligands by : Kar-Yee Lam
Download or read book Chiral Iron Pyridine Complexes and Ruthenium Complexes with N-Heterocyclic Carbene and Macrocyclic (N, O) Donor Atom Ligands written by Kar-Yee Lam and published by . This book was released on 2017-01-26 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation, "Chiral Iron Pyridine Complexes and Ruthenium Complexes With N-heterocyclic Carbene and Macrocyclic (N, O) Donor Atom Ligands: Synthesis, Catalytic Activity and Biological Studies" by Kar-yee, Lam, 林嘉儀, was obtained from The University of Hong Kong (Pokfulam, Hong Kong) and is being sold pursuant to Creative Commons: Attribution 3.0 Hong Kong License. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation. All rights not granted by the above license are retained by the author. Abstract: Abstract of thesis entitled CHIRAL IRON PYRIDINE COMPLEXES AND RUTHENIUM COMPLEXES WITH N-HETEROCYCLIC CARBENE AND MACROCYCLIC(N, O) DONOR ATOM LIGANDS: SYNTHESIS, CATALYTIC ACTIVITY AND BIOLOGICAL STUDIES Submitted by Lam Kar Yee For the degree of Doctor of Philosophy at The University of Hong Kong in April 2016 Transition metal complexes are widely applied as catalysts for organic transformation reactions such as the oxygen atom and nitrene transfer reactions and there is a growing interest to develop the medicinal applications of transition metal complexes. The studies of reactive metal-oxo and metal-nitrene intermediates are important in probing the underlying reaction mechanisms. This thesis is comprised of three main parts. In the first part, iron complexes with chiral pyridine ligands, such as 4′,6-disubstituted 2,2′ 6′,2″-terpyridine (NNN ) and 4′,6,6″-trisubstituted 2,2′ 6′,2″''-terpyridine (NNN ), were studied for their catalytic activities in asymmetric epoxidation, aziridination, amidation and sulfimidation reactions. The Fe-NNN complex catalyzed intermolecular nitrene transfer/CN bond formation reactions of styrenes with PhINTs in moderate product yields. For the asymmetric intramolecular amidation, the Fe-NNN complex can catalyze intramolecular C-N bond formation using PhI(OAc) as oxidant to form five- or six-membered ring products. The highest product yield obtained was 91 %. The complete conversion of para-substituted phenyl methyl sulfides to corresponding sulfimides was observed by using the Fe-NNN 1 2 complex as catalyst. Both the Fe-NNN and Fe-NNN complexes catalyzed asymmetric epoxidation of styrene using PhIO as oxidant at 0 C. The reaction intermediates of the nitrene/oxygen transfer reactions were studied by ESI-MS and high-valent iron-ligand multiple bonded species are proposed to be the reaction intermediates. In the second part, ruthenium pincer N-heterocyclic carbene (CNC) complexes were prepared and characterized by spectroscopic means and X-ray crystallography. II 2+ Complex [Ru (CNC)(bpy)(MeCN)], in which the CNC ligand adopts a fac-coordination mode and contains reactive CH bond of bridging methylene group, was found to react with PhINTs to result in the formation of a new CN bond and cleavage of one existing NC(methylene) bond of the CNC ligand, as revealed by X-ray crystal structure determination of the ruthenium complex product. The reaction 2+ of [Ru(CNC)(bpy)(MeCN)] with PhINTs was monitored by ESI-MS, UV-vis, and NMR spectroscopy; a paramagnetic Ru(III)-amido complex was isolated, which apparently resulted from intramolecular imido/nitrene CH insertion of a Ru(IV)-imido/nitrene intermediate and was found to undergo the observed CN bond cleavage. Such type of CN bond cleavage induced by metal-mediated imido/nitrene insertion is unprecedented in literature. The final part of this thesis is the study of the anti-angiogenic and anti-metastatic properties of the ruthenium complexes. Ruthenium complexes with different oxidation states (+2 and +3) and ligands (pincer NHC and macrocyclic (N, O) donor atom ligands) were examined for their cytotoxicity and anti-angiogenesis activity. III Among the complexes studied, [Ru (N O )Cl ]Cl (Ru-1) displays promising 2 2 2 inhibi
Book Synopsis Chiral Lewis Acids by : Koichi Mikami
Download or read book Chiral Lewis Acids written by Koichi Mikami and published by Springer. This book was released on 2018-02-19 with total page 225 pages. Available in PDF, EPUB and Kindle. Book excerpt: The series Topics in Organometallic Chemistry presents critical overviews of research results in organometallic chemistry. As our understanding of organometallic structure, properties and mechanisms increases, new ways are opened for the design of organometallic compounds and reactions tailored to the needs of such diverse areas as organic synthesis, medical research, biology and materials science. Thus the scope of coverage includes a broad range of topics of pure and applied organometallic chemistry, where new breakthroughs are being achieved that are of significance to a larger scientific audience. The individual volumes of Topics in Organometallic Chemistry are thematic. Review articles are generally invited by the volume editors. All chapters from Topics in Organometallic Chemistry are published OnlineFirst with an individual DOI. In references, Topics in Organometallic Chemistry is abbreviated as Top Organomet Chem and cited as a journal
Book Synopsis Organometallic Oxidation Catalysis by : Franc Meyer
Download or read book Organometallic Oxidation Catalysis written by Franc Meyer and published by Springer. This book was released on 2007-01-30 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: In many of the processes of oxidation catalysis, species with metal-carbon bonds are formed as key intermediates, and these processes represent the primary focus of this volume. An important aspect covered by some of the contributors is the use of organic ligands to achieve efficient oxidation catalysis. Each volume of "Topics in Organometallic Chemistry" provides a comprehensive summary and critical overview of a specific topic in organometallic chemistry.
Book Synopsis Metal-Catalyzed Oxidations of Organic Compounds by : Roger Sheldon
Download or read book Metal-Catalyzed Oxidations of Organic Compounds written by Roger Sheldon and published by Elsevier. This book was released on 2012-12-02 with total page 447 pages. Available in PDF, EPUB and Kindle. Book excerpt: Metal-Catalyzed Oxidations of Organic Compounds: Mechanistic Principles and Synthetic focuses on the oxidative transformations of functional groups. This book explores oxidation as being extensively used in the laboratory synthesis of fine organic chemicals and in the manufacture of large-volume petrochemicals. Organized into two parts encompassing 13 chapters, this book starts with an overview of the mechanistic principles of oxidation–reduction in biochemical, organic, and inorganic systems. This text then proceeds with a discussion of the use of molecular oxygen, hydrogen peroxide, and alkyl hydroperoxides as primary oxidants. Other chapters explore stoichiometric oxidations with metal oxidants, which include permanganate and chromic acid. This book discusses as well the synthetic applications of catalytic oxidations as well as the technology of petrochemical oxidation. The final chapter deals with the autoxidations of sulfur, phosphorus, and nitrogen compounds. This book is intended for chemists involved in organic synthesis, catalysis, and organometallic chemistry, both in academic institutions and in industrial laboratories.
Book Synopsis Metalloporphyrins Catalyzed Oxidations by : F. Montanari
Download or read book Metalloporphyrins Catalyzed Oxidations written by F. Montanari and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt: Oxidative catalysis by metalloporphyrin systems occupies a prominent role in the current research in the fields of chemical and biological catalysis. Our particular interest and approach has been to collect in the same volume papers dealing with both the chemical and biological aspects of the reactivity of heme systems because of the realization that a better understanding of the complementary discipline can be extremely useful for the researchers from either field. The current progress of the research on synthetic metalloporphyrin catalysts has led to the development of several systems that are able to reproduce the heme-enzyme mediated oxygenation and oxidation reactions, at least in terms of reaction types, mechanisms and often rates. These achievements have stimulated the of creating metalloporphyrin catalysts which are both ambitious project efficient and stable enough to become competitive for large-scale industrial processes. Although this project is still far from being realized, the efforts in this direction parallel those aimed at the application of heme enzymes to chemical technologies, e. g. for the mild, selective oxidation of organics or the detoxification of pollutants. Both the two approaches will be advantageous because while the enzyme systems can achieve selectivities which are probably unattainable by synthetic catalysts, the latter can be active under experimental conditions that would readily inactivate the enzymes.
Book Synopsis Catalytic Activation of Dioxygen by Metal Complexes by : László I. Simándi
Download or read book Catalytic Activation of Dioxygen by Metal Complexes written by László I. Simándi and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 407 pages. Available in PDF, EPUB and Kindle. Book excerpt: The activation of dioxygen by metal ions has both synthetic potential and biological relevance. Dioxygen is the cleanest oxidant for use in emission-free technologies to minimize pollution of the environment. The book gives a survey of those catalyst systems based on metal complexes which have been discovered and studied in the last decade. They activate molecular oxygen and effect the oxidation of various organic compounds under mild conditions. Much of the recent progress is due to a search for biomimetic catalysts that would duplicate the action of metalloenzymes. Mechanistic aspects are emphasized throughout the book. An introductonary chapter reviews the chemistry of transition metal dioxygen complexes, which are usually the active intermediates in the catalytic reactions discussed. Separate chapters are devoted to oxidation of saturated, unsaturated and aromatic hydrocarbons, phenols, catechols, oxo-compounds, phosphorus, sulfur and nitrogen compounds.
Book Synopsis N-Heterocyclic Carbenes in Transition Metal Catalysis by : Frank Glorius
Download or read book N-Heterocyclic Carbenes in Transition Metal Catalysis written by Frank Glorius and published by Springer Science & Business Media. This book was released on 2007 with total page 241 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this book leading experts have surveyed major areas of application of NHC metal complexes in catalysis. The authors have placed a special focus on nickel- and palladium-catalyzed reactions, on applications in metathesis reactions, on oxidation reactions and on the use of chiral NHC-based catalysts. This compilation is rounded out by an introductory chapter and a chapter dealing with synthetic routes to NHC metal complexes.
Book Synopsis Frontiers of Green Catalytic Selective Oxidations by : Konstantin P. Bryliakov
Download or read book Frontiers of Green Catalytic Selective Oxidations written by Konstantin P. Bryliakov and published by Springer. This book was released on 2020-10-15 with total page 295 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Modern Oxidation Methods by : Jan-Erling Bäckvall
Download or read book Modern Oxidation Methods written by Jan-Erling Bäckvall and published by John Wiley & Sons. This book was released on 2011-08-02 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt: While rust is an unwanted oxidation reaction, there are also many other useful oxidation reactions that are extremely important and number among the most commonly used reactions in the chemical industry. This completely revised, updated second edition now includes additional sections on industrial oxidation and biochemical oxidation. Edited by one of the world leaders in the field, high-quality contributions cover every important aspect from classical to green chemistry methods: - Recent Developments in Metal-catalyzed Dihydroxylation of Alkenes - Transition Metal-Catalyzed Epoxidation of Alkenes - Organocatalytic Oxidation. Ketone-Catalyzed Asymmetric Epoxidation of Alkenes and Synthetic Applications - Catalytic Oxidations with Hydrogen Peroxide in Fluorinated Alcohol Solvents - Modern Oxidation of Alcohols using Environmentally Benign Oxidants - Aerobic Oxidations and Related Reactions Catalyzed by N-Hydro xyphthalimide - Ruthenium-Catalyzed Oxidation for Organic Synthesis - Selective Oxidation of Amines and Sulfides - Liquid Phase Oxidation Reactions Catalyzed by Polyoxometalates - Oxidation of Carbonyl Compounds - Manganese-Catalyzed Oxidation with Hydrogen Peroxide - Biooxidation with Cytochrome P450 Monooxygenases By providing an overview of this vast topic, the book represents an unparalleled aid for organic, catalytic and biochemists working in the field.
Book Synopsis Aqueous Organometallic Chemistry and Catalysis by : István T. Horváth
Download or read book Aqueous Organometallic Chemistry and Catalysis written by István T. Horváth and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 317 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of the NATO Advanced Research Workshop, Debrecen, Hungary, August 29--September 1, 1994
Book Synopsis Oxidation of Organic Compounds: Gas-phase oxidations, homogeneous and heterogeneous catalysis, applied oxidations and synthetic processes by :
Download or read book Oxidation of Organic Compounds: Gas-phase oxidations, homogeneous and heterogeneous catalysis, applied oxidations and synthetic processes written by and published by . This book was released on 1968 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Catalytic Oxidation of Organic Compounds in the Vapor Phase by : Leroy Frank Marek
Download or read book The Catalytic Oxidation of Organic Compounds in the Vapor Phase written by Leroy Frank Marek and published by . This book was released on 1932 with total page 506 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Advances in Catalytic Activation of Dioxygen by Metal Complexes by : L. I. Simándi
Download or read book Advances in Catalytic Activation of Dioxygen by Metal Complexes written by L. I. Simándi and published by Taylor & Francis US. This book was released on 2003-01-31 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: The catalytic activation of dioxygen continues to attract interest both due to its biological importance and synthetic potential. Metalloenzymes play crucial roles in metabolism by living organisms. The modelling of metalloenzymes by biomimetic metal complexes helps the search for useful oxidation catalysts and the understanding of their mechanisms of operation. Dioxygen is also the oxidant of choice in emission-free technologies aimed at minimising pollution of the environment, in line with the green chemistry requirements. This volume is devoted to recent progress in the field of catalytic oxidations using ruthenium, copper, iron, gold, cobalt and other complexes. Products and mechanistic aspects are given special emphasis throughout the book.
