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First Row Transition Metal Hydrides Catalyzed Hydrogen Atom Transfer
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Book Synopsis First Row Transition Metal Hydrides Catalyzed Hydrogen Atom Transfer by : Chengbo Yao
Download or read book First Row Transition Metal Hydrides Catalyzed Hydrogen Atom Transfer written by Chengbo Yao and published by . This book was released on 2022 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: By combining this reaction with the H• transfer, metalloradicals can often catalyze the formation of radicals from H2. Over the years, the Norton group has studied several transition metal hydride systems and demonstrated their applications in different scenarios. The kinetics and thermodynamics of these systems have been studies in detail, and they are shown be competent hydrogen atom donors to unsaturated organic substrates and to organic radicals. Some of these metal hydrides can be made catalytic under hydrogen pressure, thus providing an atom-economical way to effect radical reactions. Specifically, the thermodynamic properties of the chromium hydride HCpCr(CO)3 have been carefully studied. Based on this information, I developed a Ti/Cr cooperative catalytic system featuring multiple interactions between the two metal systems. Herein are described three applications of this Ti/Cr catalytic system: anti-Markovnikov hydrogenation of epoxides (Chapter 2), reductive cyclization of epoxy enones under H2 (Chapter 3), and aziridine isomerization to allyl amines (Chapter 4).
Book Synopsis Using First Row Transition Metal Hydrides as Hydrogen Atom Donors by : Jonathan Lan Kuo
Download or read book Using First Row Transition Metal Hydrides as Hydrogen Atom Donors written by Jonathan Lan Kuo and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: I have therefore reevaluated the reactivity of [CpV(CO)3H]–, and found that although the 18 electron anionic hydride is not a good hydrogen atom donor, the oxidized 17-electron neutral CpV(CO)3H is an extremely potent one. I have made the reactions with [CpV(CO)3H]– catalytic under H2 (now the reactions are done with an added base). The catalytic reactions that use [CpV(CO)3H]– can enact the exact same transformations that tin does, so I have developed a true catalytic replacement for Bu3SnH.
Book Synopsis Investigation and Manipulation of Proton, Hydride, and Hydrogen Atom Transfer with Main Group Compounds by : Ian Anderson Kieffer
Download or read book Investigation and Manipulation of Proton, Hydride, and Hydrogen Atom Transfer with Main Group Compounds written by Ian Anderson Kieffer and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Transition Metal Hydrides by : Alain Dedieu
Download or read book Transition Metal Hydrides written by Alain Dedieu and published by . This book was released on 1992 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Transition Metal Hydrides that Mediate Catalytic Hydrogen Atom Transfers by :
Download or read book Transition Metal Hydrides that Mediate Catalytic Hydrogen Atom Transfers written by and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: I have attempted to regenerate these vanadium hydrides by a sequential reduction then protonation of the metalloradical. With HV(CO)4dppe this only produced hydrogen gas, presumably by one electron reduction of HV(CO)4dppe. However, with HV(CO)4dppf this does not readily occur and this hydride could potentially be a catalyst for radical cyclizations. Many radical cyclizations involve vinyl (sp2) radicals. I have shown that both the CpCr(CO)3H and the Co(dmgBF2)2(H2O)2 systems can catalytically perform metal to alkyne hydrogen atom transfers (MAHAT's) and that these reactions can be used to perform radical cyclizations very efficiently.
Book Synopsis Catalysis without Precious Metals by : R. Morris Bullock
Download or read book Catalysis without Precious Metals written by R. Morris Bullock and published by John Wiley & Sons. This book was released on 2011-08-02 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written for chemists in industry and academia, this ready reference and handbook summarizes recent progress in the development of new catalysts that do not require precious metals. The research thus presented points the way to how new catalysts may ultimately supplant the use of precious metals in some types of reactions, while highlighting the remaining challenges. An essential copanion for organic and catalytic chemists, as well as those working with/on organometallics and graduate students. From the contents: * Catalysis Involving the H' Transfer Reactions of First-Row Transition Metals * Catalytic Reduction of Dinitrogen to Ammonia by Molybdenum Complexes * Molybdenum and Tungsten Catalysts for Hydrogenation, Hydrosilylation and Hydrolysis * Iron in Catalytic Alkene and Carbonyl Hydrogenation Reactions * Olefin Oligomerizations and Polymerizations Catalyzed by Iron and Cobalt Complexes * Cobalt and Nickel Catalyzed Reactions Involving C-H and C-N Activation Reactions * Development of Molecular Electrocatalysts for H2 Oxidation and Production Based on Inexpensive Metals * Nickel-Catalyzed Reductinve Couplings and Cyclizations * Copper-Catalyzed Ligand Promoted Ullmann-Type Coupling Reactions * Copper-Catalyzed Azide-Alkyne Cycloaddition * "Frustrated Lewis Pairs": A Metal-Free Strategy for Hydrogenation Catalysis
Book Synopsis Non-Noble Metal Catalysis by : Robertus J. M. Klein Gebbink
Download or read book Non-Noble Metal Catalysis written by Robertus J. M. Klein Gebbink and published by John Wiley & Sons. This book was released on 2019-04-29 with total page 610 pages. Available in PDF, EPUB and Kindle. Book excerpt: An expert overview of current research, applications, and economic and environmental advantages The study and development of new homogeneous catalysts based on first-row metals (Mn, Fe, Co, Ni, and Cu) has grown significantly due to the economic and environmental advantages that non-noble metals present. Base metals offer reduced cost, greater supply, and lower toxicity levels than noble metals?enabling greater opportunity for scientific investigation and increased development of practical applications. Non-Noble Metal Catalysis provides an authoritative survey of the field, from fundamental concepts and computational methods to industrial applications and reaction classes. Recognized experts in organometallic chemistry and homogeneous catalysis, the authors present a comprehensive overview of the conceptual and practical aspects of non-noble metal catalysts. Examination of topics including non-innocent ligands, proton-coupled electron transfer, and multi-nuclear complexes provide essential background information, while areas such as kinetic lability and lifetimes of intermediates reflect current research and shifting trends in the field. This timely book demonstrates the efficacy of base metal catalysts in the pharmaceutical, fine-chemical, and agrochemical industries, addressing both environmental and economic concerns. Providing essential conceptual and practical exploration, this valuable resource: -Illustrates how unravelling new reactivity patterns can lead to new catalysts and new applications -Highlights the multiple advantages of using non-noble metals in homogenous catalysis -Demonstrates how the availability of non-noble metal catalysis reduces costs and leads to immense savings for the chemical industry -Reveals how non-noble metal catalysis are more sustainable than noble metals such as palladium or platinum Non-Noble Metal Catalysis: Molecular Approaches and Reactions is an indispensable source of up-to-date information for catalytic chemists, organic chemists, industrial chemists, organometallic chemists, and those seeking to broaden their knowledge of catalytic chemistry.
Book Synopsis Transition-Metal Complexes Catalyzed Hydrogen Atom Transfer by : Gang Li
Download or read book Transition-Metal Complexes Catalyzed Hydrogen Atom Transfer written by Gang Li and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In attempting to improve the efficiency of radical cyclization I have studied the effect of substituents on the target double bond on the rate of cyclization. A single phenyl substituent has proven to stabilize a radical better than two phenyls. This stabilization leads to faster cyclizations and a higher cyclization yield. I also have found that Co(dmgBF2)L2 (L = THF, H2O, MeOH...) under H2 is an effective hydrogen atom donor. I have monitored by NMR the catalysis by the system of the hydrogenation of stable radicals (trityl radical and TEMPO radical) and found the rate-determining step to be the activation of hydrogen gas by CoII. The reactive form of the complex is five-coordinated cobalt complex Co(dmgBF2)2L. The Co/H2 system can also transfer hydrogen atom to C=C bonds, thus initiate radical cyclizations. The resting state of the cobalt is the CoII metalloradical, so a cycloisomerization is obtained. Such a reaction neither loses nor adds any atom and has 100% atom economy.
Book Synopsis Catalytic Transition Metal Hydrides by : Donald Warren Slocum
Download or read book Catalytic Transition Metal Hydrides written by Donald Warren Slocum and published by . This book was released on 1983 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Organotransition Metal Chemistry: From Bonding to Catalysis by : John F. Hartwig
Download or read book Organotransition Metal Chemistry: From Bonding to Catalysis written by John F. Hartwig and published by . This book was released on 2010-02-10 with total page 1172 pages. Available in PDF, EPUB and Kindle. Book excerpt: Based on Collman et al.'s best-selling classic book, Principles and Applications of Organotransition Metal Chemistry, Hartwig's text consists of new or thoroughly updated and restructured chapters and provides an in-depth view into mechanism, reaction scope, and applications. It covers the most important developments in the field over the last twenty years with great clarity with a selective, but thorough and authoritative coverage of the fundamentals of organometallic chemistry, the elementary reactions of these complexes, and many catalytic processes occurring through organometallic intermediates, making this the Organotransition Metal Chemistry text for a new generation of scientists.
Book Synopsis Hydrogen Atom Transfer from Transition-metal Hydrides by : Mary E. Pulling
Download or read book Hydrogen Atom Transfer from Transition-metal Hydrides written by Mary E. Pulling and published by . This book was released on 2009 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Homogeneous Hydrogenation with Non-Precious Catalysts by : Johannes F. Teichert
Download or read book Homogeneous Hydrogenation with Non-Precious Catalysts written by Johannes F. Teichert and published by John Wiley & Sons. This book was released on 2020-02-03 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt: A guide and comprehensive review of the most recent advances in homogeneous hydrogenation with non-precious catalysts In recent years a great deal of research has been applied to homogeneous hydrogenation with non-precious catalysis. Homogeneous Hydrogenation with Non-Precious Catalysts offers a review of the latest developments and advances in the field. In addition, the book explores the transition metal catalysis and the concept of frustrated-lewis-pair (FLP) and enzymatic processes. The editor?a noted expert on the topic?discusses the various catalysts and puts the focus on the synthetic vantage point, highlighting the functional group transformation enabled by the respective catalyst. Homogeneous Hydrogenation with Non-Precious Catalysts also presents the industrial view of the topic and includes an overview of the various catalysts by functional group transformations. This important book: -Offers a comprehensive presentation of the newest development in this emerging field -Highlights the transition metal catalysis, the frustrated-lewis-pair (FLP) concept, and enzymatic processes -Provides an industrial perspective of the topic -Includes an overview of the various catalysis by functional group transformations Written for organic chemists, researchers in synthetic chemistry, and industry professionals, Homogeneous Hydrogenation with Non-Precious Catalysts offers a comprehensive and accessible guide to the most recent advances in the field. [/COPY_WEB_CATALOG]
Book Synopsis Kinetics, Mechanism, and Applications of Hydrogen Atom Transfer from Transition-metal Hydrides by : Graham Abramo
Download or read book Kinetics, Mechanism, and Applications of Hydrogen Atom Transfer from Transition-metal Hydrides written by Graham Abramo and published by . This book was released on 2000 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Recent Advances in Hydride Chemistry by : Maurizio Peruzzini
Download or read book Recent Advances in Hydride Chemistry written by Maurizio Peruzzini and published by Elsevier. This book was released on 2002-01-30 with total page 577 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book has been conceived to collect the most important recent advances in all areas of hydride chemistry research, including chemical reactivity, instrumental investigation, theory, and applications in the areas of catalysis, biochemistry and materials science. Many of the chapters have been written by the plenary lecturers of the EURO-Hydrides 2000 conference, but other leading scientists in this field have also been invited to contribute. The first part of the book focuses on the chemistry and catalysis of transition metal hydrides. Another block of chapters illustrates the most recent advances in the application of instrumental techniques to the study of the properties and reactivity of hydride compounds. The final part of the book illustrates the relevance of metal-hydrogen bonds in biochemistry and materials science. All of the chapters of this book have been evaluated by independent reviewers.
Book Synopsis Thermodynamic Acidities and Hydrogen Atom Transfer Rates of Transition Metal Hydrides by : Anne Erwin Moody
Download or read book Thermodynamic Acidities and Hydrogen Atom Transfer Rates of Transition Metal Hydrides written by Anne Erwin Moody and published by . This book was released on 1989 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Hydrogen Transfer Reactions by : Gabriela Guillena
Download or read book Hydrogen Transfer Reactions written by Gabriela Guillena and published by Springer. This book was released on 2016-09-27 with total page 393 pages. Available in PDF, EPUB and Kindle. Book excerpt: The series Topics in Current Chemistry Collections presents critical reviews from the journal Topics in Current Chemistry organized in topical volumes. The scope of coverage is all areas of chemical science including the interfaces with related disciplines such as biology, medicine and materials science. The goal of each thematic volume is to give the non-specialist reader, whether in academia or industry, a comprehensive insight into an area where new research is emerging which is of interest to a larger scientific audience. Each review within the volume critically surveys one aspect of that topic and places it within the context of the volume as a whole. The most significant developments of the last 5 to 10 years are presented using selected examples to illustrate the principles discussed. The coverage is not intended to be an exhaustive summary of the field or include large quantities of data, but should rather be conceptual, concentrating on the methodological thinking that will allow the non-specialist reader to understand the information presented. Contributions also offer an outlook on potential future developments in the field.
Book Synopsis Thermodynamics and Kinetics of Hydrogen Atom Transfer from Transition-metal Hydrides by : Jongwook Choi
Download or read book Thermodynamics and Kinetics of Hydrogen Atom Transfer from Transition-metal Hydrides written by Jongwook Choi and published by . This book was released on 2007 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt:
