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Hydrogenation Oxo Synthesis Hydrocracking Hydrodesulfurization Hydrogen Isotope Exchange And Related Catalytic Reactions
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Book Synopsis Hydrogenation, Oxo-Synthesis, Hydrocracking, Hydrodesulfurization, Hydrogen Isotope Exchange and Related Catalytic Reactions by :
Download or read book Hydrogenation, Oxo-Synthesis, Hydrocracking, Hydrodesulfurization, Hydrogen Isotope Exchange and Related Catalytic Reactions written by and published by . This book was released on 1957 with total page 542 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Catalysis written by Paul H. Emmett and published by . This book was released on 1957 with total page 542 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis HYDROGENATION, OXO-SYNTHESIS, HYDROCRACKING, HYDRODESULFURIZATION, HYDROGEN ISOTOPE EXCHANGE AND RELATED CATALYTIC REACTIONS. by : Paul H. Emmett
Download or read book HYDROGENATION, OXO-SYNTHESIS, HYDROCRACKING, HYDRODESULFURIZATION, HYDROGEN ISOTOPE EXCHANGE AND RELATED CATALYTIC REACTIONS. written by Paul H. Emmett and published by . This book was released on 1960 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Catalysis written by and published by . This book was released on 1957 with total page 542 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Catalysis written by and published by . This book was released on 1954 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Catalysis: Hydrogenation, oxo-synthesis, hydrocracking, hydrodesulfurization, hydrogen isotope exchange and related catalytic reactions by : Paul Hugh Emmett
Download or read book Catalysis: Hydrogenation, oxo-synthesis, hydrocracking, hydrodesulfurization, hydrogen isotope exchange and related catalytic reactions written by Paul Hugh Emmett and published by . This book was released on 1954 with total page 556 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Isotopic Exchange Reactions by : Milton Kahn
Download or read book Isotopic Exchange Reactions written by Milton Kahn and published by . This book was released on 1962 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Homogeneous Hydrogenation by : P.A. Chaloner
Download or read book Homogeneous Hydrogenation written by P.A. Chaloner and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 293 pages. Available in PDF, EPUB and Kindle. Book excerpt: Homogeneous hydrogenation is one of the most thoroughly studied fields of homogeneous catalysis. The results of these studies have proved to be most important for an understanding of the underlying principles of the activation of small molecules by transition metal complexes. During the past three decades homogeneous hydrogenation has found widespread application in organic chemistry, including the production of important pharmaceuticals, especially where a sophisticated degree of selectivity is required. This volume presents a general account of the main principles and applications of homogeneous hydrogenation by transition metal complexes. Special attention is devoted to the mechanisms by which these processes occur, and the role of the recently discovered complexes of molecular hydrogen is described. Sources of hydrogen, other than H2, are also considered (transfer hydrogenation). The latest achievements in highly stereoselective hydrogenations have made possible many new applications in organic synthesis. These applications are documented by giving details of the reduction of important unsaturated substrates (alkenes, alkynes, aldehydes and ketones, nitrocompounds, etc.). Hydrogenation in biphasic and phase transfer catalyzed systems is also described. Finally, a discussion of the biochemical routes of H2 activation highlights the similarities and differences in performing hydrogenation in both natural and synthetic systems. For researchers working in the fields of homogeneous catalysis, especially in areas such as pharmaceuticals, plastics and fine chemicals.
Book Synopsis Hydrogenation and Hydrogen Isotope Exchange by : Richard J. Mudd
Download or read book Hydrogenation and Hydrogen Isotope Exchange written by Richard J. Mudd and published by . This book was released on 2016 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The field of iridium(I)-mediated processes has expanded over the past 50 years, with new avenues of research constantly opening. To this end, the Kerr group has developed a series of cationic iridium(I) catalysts bearing a bulky NHC/phosphine ligand sphere that can effectively mediate mild hydrogen isotope exchange and olefin hydrogenation processes.Having said this, with the ever-expanding scope of NHCs and the increasing ease of access to phosphines, the possibility still exists to further improve upon these complexes with lower catalyst loadings, faster reaction times, and an improved substrate scope. To this end, this thesis details some of the work achieved throughout the last 3.5 years.Within the first chapter, progress towards more efficient olefin hydrogenation is discussed. In the first instance, highly selective hydrogenation, through the use of a directing group was targeted. Initial investigations focussed upon manipulating the counterion to the cationic iridium(I) complexes in question, and manipulating the ligand sphere through changing the nature of the phosphine and NHC. This process generated new methods for the synthesis of NHC/phosphine catalysts, and was applied to the production of a number of novel complexes. Following on from this, a highly efficient reduction process was optimised, and the selectivity therein investigated.Following on from this, the equivalent asymmetric reaction was then studied, thus entering a new field of research within the group, and therefore, requiring the development of a completely new catalyst system. This process was guided by the non-asymmetric system, and synthesis of a number of model non-chiral complexes. After thoroughly testing the newly synthesised complexes, greater understanding was gained of the requirements for a highly enantioselective reaction, and, through this, to propose a plausible selectivity model and mechanism.In chapter two, we discuss the development of NHC/phosphine catalysts in hydrogen isotope exchange, with a partiular focus on the selectivity of the exchange process. Following on from previous work in the group, this first targets the use of weakly coordinating acids as a directing group, and the impact that addition of base has upon the selectivity of the reaction.Furthermore, understanding that drug design is moving away from planar molecules, towards non-planar, sp3-rich compounds, we also investigated the possibility of exchange at positions in a molecule other than an sp2 aryl ring. This was initially observed when developing the hydrogenation methods discussed in chapter one, enabling selective sp2 exchange in conjugated olefins. This new, highly selective method of labelling was examined through a combined experimental and computational investigation, leading to a thorough understanding of the mechanism and factors governing reaction selectivity. Having progressed from sp2-aryl to sp2-non-aryl exchange, the logical progression was to next investigate sp3 exchange. Through a detailed study three protocols were developed, enabling exchange on a wide range of sp3 hybridised sites, in pharmaceutically relevant systems. These new processes were investigated mechanistically and computationally to ascertain the mechanism and selectivity of exchange.
Book Synopsis How to Find Out in Chemistry by : C. R. Burman
Download or read book How to Find Out in Chemistry written by C. R. Burman and published by Elsevier. This book was released on 2013-10-22 with total page 261 pages. Available in PDF, EPUB and Kindle. Book excerpt: How to Find Out in Chemistry: A Guide to Sources of Information indicates how to make the best possible use of the literature of chemistry. This book serves as a guide for outlining the careers available to qualified chemists and explaining how such qualifications can be obtained; assembling a library of chemistry books; describing some of the general standards on books, biographies, and theses; acquiring periodical publications; and abstracting journals. Other topics discussed include general and physical chemistry, analytical chemistry, organic and inorganic chemistry, and chemical technology. This publication is intended for undergraduates and technical college students conducting research on the implications of chemistry.
Book Synopsis Oxygenates by Homologation or CO Hydrogenation with Metal Complexes by : A. Braca
Download or read book Oxygenates by Homologation or CO Hydrogenation with Metal Complexes written by A. Braca and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt: Born and initially developed in various industrial laboratories, mainly in U.S.A. and Gennany, homogeneous phase catalytic carbon monoxide hydrogenation and alcohols and their derivatives carbonylation and homologation, have generally been considered and reviewed separately in the course of their 40 years history without concern for common aspects in the chemical transfonnations and in catalysis. Thanks to researchers of Japanese companies participating in the National C 1 Chemistry Project (1980-1987) the scientific and technical approaches in this field have been unified and applied in parallel, in the light of some common aspects of the chemical reactions and mechanisms. Now, at a moment when research seems becahned, a general presentation and discussion of the most recent topics might be an useful basis for further development of this chemistry. To delimit and simplify the discussion of the chemical aspects and the nature of the catalysts involved, the present review is limited to reactions employing homogeneous metal complexes for the direct conversion of syngas to oxygenates and to the hydrocarbonylation of these last to homologous derivatives. Since the previous practically contemporary reviews by Dombek [in Adv. Organomet. Chern. (1983)] on CO hydrogenation and by the present authors [in Asp.Homog.Catal.(Reidel Pu.l984)] on alcohol homologation fully cover the literature up to 1982, here we mainly refer to work done after 1982, and consider the cited reviews as covering the historical development of research in the 1940- 1980 period.
Download or read book Catalysis written by and published by . This book was released on 1957 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hydrogenation written by Iyad Karamé and published by BoD – Books on Demand. This book was released on 2012-10-10 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt: The domain of catalytic hydrogenation continues to grow fast, reflecting the wide range of chemical applications that can be enhanced by the easy use of molecular hydrogen. The advances in characterization techniques and their application have improved our understanding of the catalytic processes and mechanisms occurring in both homogeneous and heterogeneous catalysis. The aim of this volume, although not exhaustive, is to provide a general overview of new progress of the hydrogenation reactions. This volume comprises a series of various contributions, as reviews or original articles, treating heterogeneously and homogeneously catalyzed hydrogenation reactions. It is composed of three parts: hydrogenation reactions in fine organic chemistry, hydrogenation reactions in environmental chemistry and renewable energy, and special topics in hydrogenation.
Book Synopsis Hydrodesulfurization and Hydrodenitrogenation by : Toshiaki Kabe
Download or read book Hydrodesulfurization and Hydrodenitrogenation written by Toshiaki Kabe and published by Wiley-VCH. This book was released on 2000-04-13 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The development of efficient catalysts for hydrodesulfurization (HDS) and hydrodenitrogenation (HDN) processes is an essential and urgent research field. During oil refinement the removal of sulfur and nitrogen compounds from petroleum feedstock is crucial, as the emission of sulfur and nitrogen oxides into the atmosphere causes severe environmental problems. In light of the industrial process for hydrocarbons, HDS is indispensable as it eliminates the poisoning of catalysts during hydrotreatment and hydrocracking. In order to develop new catalysts, the mechanism of these reactions as well as the structures and functions of the catalysts need to be elucidated. This book provides an up-to-date and deep insight, which spans kinetic studies, catalytic cycles, structures and properties of catalysts to process engineering. Therefore every chemist and engineer working in this important research field will welcome this valuable source of information.
Download or read book Battelle Technical Review written by and published by . This book was released on 1958 with total page 1100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Catalytic Hydrogenation by : L. Cervený
Download or read book Catalytic Hydrogenation written by L. Cervený and published by Elsevier. This book was released on 1986-08-01 with total page 705 pages. Available in PDF, EPUB and Kindle. Book excerpt: The collection of contributions in this volume presents the most up-to-date findings in catalytic hydrogenation. The individual chapters have been written by 36 top specialists each of whom has achieved a remarkable depth of coverage when dealing with his particular topic. In addition to detailed treatment of the most recent problems connected with catalytic hydrogenations, the book also contains a number of previously unpublished results obtained either by the authors themselves or within the organizations to which they are affiliated.Because of its topical and original character, the book provides a wealth of information which will be invaluable not only to researchers and technicians dealing with hydrogenation, but also to all those concerned with homogeneous and heterogeneous catalysis, organic technology, petrochemistry and chemical engineering.
Book Synopsis Catalytic Hydrogenation in Organic Synthesis by : Morris Freifelder
Download or read book Catalytic Hydrogenation in Organic Synthesis written by Morris Freifelder and published by John Wiley & Sons. This book was released on 1978-11 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt: Based on over 22 years of experience, this book presents a substantial accumulation of knowledge. Clearly and understandably written, it gives detailed descriptions of many experiments, providing step-by-step procedures along with personal notes and observations, directions, suggestions, and safety precautions. The yields obtained in these experiments are good to excellent, and most of the hydrogenations discussed are carried out under very mild conditions.
