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Author : Ahmed Elmekawy
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (16 download)
Download or read book Bifunctional Supported Catalysts for Fine Chemical Synthesis written by Ahmed Elmekawy and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Eric G. Derouane
Publisher : John Wiley & Sons
ISBN 13 : 9780470094204
Total Pages : 258 pages
Book Rating : 4.0/5 (942 download)
Download or read book Microporous and Mesoporous Solid Catalysts written by Eric G. Derouane and published by John Wiley & Sons. This book was released on 2006-08-14 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: This series offers practical help for advanced undergraduate, graduate and postgraduate students, as well as experienced chemists in industry and academia working with catalysts in organic and organometallic synthesis. It features tested and validated procedures, authoritative reviews on classes of catalysts, and assessments of all types of catalysts. Micro- and Mesoporous Solid Catalysts describes the use of zeolites and mesoporous solids as catalysts for the production of fine and specialty chemicals. Specific tips and hints are provided and some typical procedures are described in detail In addition to discussing the pros and cons, several major organic transformations are examined including aromatic substitutions, heterocyclic ring formation, amines synthesis, oligomerisation, oxidation and hydroxylation, and other regioselective and stereoselective reactions Features tutorial introductory chapters, including tips and hints for achieving successful organic transformations Important reactions are featured together with recommendations to resolve potential problems.
Author : John Meurig Thomas
Publisher : World Scientific Publishing Company
ISBN 13 : 1848169299
Total Pages : 324 pages
Book Rating : 4.8/5 (481 download)
Download or read book Design And Applications Of Single-site Heterogeneous Catalysts: Contributions To Green Chemistry, Clean Technology And Sustainability written by John Meurig Thomas and published by World Scientific Publishing Company. This book was released on 2012-04-16 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: For far too long chemists and industrialists have relied on the use of aggressive reagents such as nitric and sulphuric acids, permanganates and dichromates to prepare the massive quantities of both bulk and fine chemicals that are needed for the maintenance of civilised life — materials such as fuels, fabrics, foodstuffs, fertilisers and pharmaceuticals. Such aggressive reagents generate vast quantities of environmentally harmful and often toxic by-products, including the oxides of nitrogen, of metal oxides and carbon dioxide.Now, owing to recent advances made in the synthesis of nanoporous solids, it is feasible to design new solid catalysts that enable benign, mild oxidants to be used, frequently without utilising solvents, to manufacture the products that the chemical, pharmaceutical, agro- and bio-chemical industries require. These new solid agents are designated single-site heterogeneous catalysts (SSHCs). Their principal characteristics are that all the active sites present in the high-area solids are identical in their atomic environment and hence in their energy of interaction with reactants, just as in enzymes.Single-site heterogeneous catalysts now occupy a position of growing importance both academically and in their potential for commercial exploitation. This text, the only one devoted to such catalysts, dwells both on principles of design and on applications, such as the benign synthesis of nylon 6 and vitamin B3. It equips the reader with unifying insights required for future catalytic adventures in the quest for sustainability in the materials used by humankind.Anyone acquainted with the language of molecules, including undergraduates in the physical and biological sciences, as well as graduates in engineering and materials science, should be able to assimilate the principles and examples presented in this book. Inter alia, it describes how clean technology and ‘green’ processes may be carried out in an environmentally responsible manner.
Author : Stanley M. Roberts
Publisher : John Wiley & Sons
ISBN 13 : 0470855797
Total Pages : 244 pages
Book Rating : 4.4/5 (78 download)
Download or read book Hydrolysis, Oxidation and Reduction written by Stanley M. Roberts and published by John Wiley & Sons. This book was released on 2003-06-27 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt: Catalysts are increasingly used by chemists engaged in fine chemical synthesis within both industry and academia. Today, there exists a huge choice of high-tech catalysts, which add enormously to the repertoire of synthetic possibilities. However, catalysts are occasionally capricious, sometimes difficult to use and almost always require both skill and experience in order to achieve optimal results. This series aims to be a practical help for advanced undergraduate, graduate and postgraduate students, as well as experienced chemists in industry and academia working in organic and organometallic synthesis. The series features: * Tested and validated procedures. * Authoritative reviews on classes of catalysts. * Assessments of all types of catalysts. * Expertise from the Leverhulme Centre for Innovative Catalysis, Liverpool, UK. The review section in the first volume of the series contains a report by Stanley M. Roberts on the integration of biotransformations into the catalyst portfolio. The procedure section contains a wide variety of synthetic protocols, such as epoxidations of unsaturated ketones and esters, asymmetric reductions of carbon-oxygen double bonds, asymmetric hydrogenations of carbon-carbon double bonds and other types of reaction. The featured catalysts include a wide range of different materials such as poly-D-leucine, D-fructose-based dioxiranes, oxaborolidine borane, some important titanium and ruthenium complexes as well as baker's yeast. For each reaction there are one or several detailed protocols on how to prepare and employ the various catalysts.
Author : H.U. Blaser
Publisher : Elsevier
ISBN 13 : 0080533930
Total Pages : 693 pages
Book Rating : 4.0/5 (85 download)
Download or read book Heterogeneous Catalysis and Fine Chemicals IV written by H.U. Blaser and published by Elsevier. This book was released on 1997-06-19 with total page 693 pages. Available in PDF, EPUB and Kindle. Book excerpt: After three meetings in Poitiers, France, the 4th International Symposium on Heterogeneous Catalysis and Fine Chemicals was held under the auspices of the New Swiss Chemical Society in Basel, Switzerland. Fundamental as well as applied contributions on the use of heterogeneous catalysis for the preparation of fine chemicals were presented and discussed. The program consisted of 4 plenary lectures, 28 oral contributions and around 90 posters covering a broad range of reactions and catalytic aspects. 82 of these contributions are collected in the present proceedings, grouped into the following 8 topical areas: - Industrial and engineering problems (7 contributions) - Alkylation and acylation reactions (11 contributions) - Enantio- and diastereoselective hydrogenation reactions (9 contributions) - Chemoselective hydrogenation reactions (12 contributions) - Oxidation reactions (14 contributions) - Immobilized and encapsulated complex catalysts (12 contributions) - Zeolite and clay catalysts (12 contributions) - Miscellaneous topics (5 contributions)
Author : Stanley M. Roberts
Publisher : John Wiley & Sons
ISBN 13 : 9780470090237
Total Pages : 336 pages
Book Rating : 4.0/5 (92 download)
Download or read book Regio- and Stereo-Controlled Oxidations and Reductions written by Stanley M. Roberts and published by John Wiley & Sons. This book was released on 2007-08-20 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volume 5 in the Catalysts for Fine Chemical Synthesis series describes new procedures for the regio- and stereo-controlled transformations of compounds involving oxidation or reduction reactions. It describes a wide range of catalysts, including organometallic systems, biocatalysts and biomimetics. This volume also includes descriptions of a variety of conversions, including: Baeyer-Villiger oxidations; Epoxidation reactions; Hydroxylation reactions; Oxidation of alcohols to aldehydes, ketones and carboxylic acids; Reduction of ketones; and Reduction of alkenes including α, β-unsaturated carbonyl compounds. The book will be an important text for practising synthetic organic chemists in industry and academia. Protocols are written in a standard format by the authors who have discovered them Hints, tips and safety advice (where appropriate) is given to ensure that the procedures are reproducible Indications are given as to the range of starting materials used and, where appropriate, comparisons to alternative methodology Includes relevant references to the primary literature.
Author : Abdo Alslam Ali Abdo Alslam Alwakwak
Publisher :
ISBN 13 :
Total Pages : 119 pages
Book Rating : 4.:/5 (131 download)
Download or read book Continuous-flow Synthesis of Fine Chemicals and Pharmaceutical Compounds Over Intelligent Organocatalysts with Bifunctional Reactivity written by Abdo Alslam Ali Abdo Alslam Alwakwak and published by . This book was released on 2020 with total page 119 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Many biological systems that utilize organic active sites to catalyze reactions under mild conditions invoke cooperative catalytic pathways, whereby two or more active sites work together to activate the reactant(s). The use of cooperative (bifunctional) catalysts and continuous flow chemistry (a reaction within the narrow channels of a micro- or microfluidic reactor) are commonplace in sustainable chemical transformation and attract a great deal of interest with respect to economic and environmentally-sustainable production of fine chemicals, pharmaceuticals, and agrochemicals, water treatment, as well as upgrading of biomass feedstocks. Although, some methods have been developed for immobilization of bifunctional catalysts for cooperative interactions within microfluidic reactors, the catalyst stability is still hampered by linker/support decomposition and active species leaching from the support/reactor to the product stream which are a major challenge for successful transferring batch chemistries to continuous flow reactions. The overall goal of this research was to overcome the catalyst leaching and product contamination problems by covalently bonding homogeneous organocatalysts on polymeric hollow fiber surfaces as a new, low-cost technique to create and engineer composite hollow fibers that can be used as a heterogeneous catalyst and continuous-flow microfluidic reactor. Specifically, this work developed a method for immobilization of bi- and tri-functional organocatalysts on porous polyamide-imide hollow fibers (PAIHFs) and demonstrated their application as heterogeneous catalysts and continuous-flow microfluidic reactors for chemical transformation"--Abstract, page iv.
Author : Li Gao
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (128 download)
Download or read book Rational Design of Bifunctional Catalysts for the Conversion of Furfural Into Chemicals of Industrial Interest written by Li Gao and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biomass is a renewable and clean resource, and great interest is devoted to its conversion into fuels and fine chemicals. In particular, furfural emerges as a key platform molecule. In this view, it is an urgent need to develop eco-efficient and intensified processes affording the conversion of furfural into added-value chemicals in a minimum number of steps. In this PhD thesis, we engineered single-reactor tandem reactions, where furfural is transformed into target chemicals in a one-pot fashion without separation of reaction intermediates. To this aim, multifunctional catalysts, showing high activity, selectivity and reusability, are required. As a first example, we conceived a single-reactor tandem process for the aldol condensation/crotonization reaction between furfural and methyl isobutyl ketone (MIBK), followed by hydrogenation with molecular H2. Two robust bifunctional catalysts were developed and optimized based on Pd/HPSAPO-5 with hierarchical porosity and Brønsted acidity, and Pd/Al2O3, with Lewis acidity. The catalysts exhibited high yield to THF-derivatives and were reusable in multiple steps without decrease of catalytic activity. As a second example, we conceived a single-reactor tandem process for the benzoin condensation of furfural to furoin, followed by reductive amination of the as-generated furoin with NH3 and molecular H2. A high yield of 2-amino-1,2-di(furan-2-yl)ethan-1-ol could obtained over combined silica-supported benzimidazole and Ru/Al2O3.
Author : Pierluigi Barbaro
Publisher : Springer Science & Business Media
ISBN 13 : 9048136962
Total Pages : 470 pages
Book Rating : 4.0/5 (481 download)
Download or read book Heterogenized Homogeneous Catalysts for Fine Chemicals Production written by Pierluigi Barbaro and published by Springer Science & Business Media. This book was released on 2010-09-02 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt: Table 1 E factors (tonnes of waste generated per tonne of product manufactured [7] Industry segment Annual product tonnage E factor 6 8 Oil refining 10 –10 Approx. 0. 1 4 6 Bulk chemicals 10 –10
Author : Inamuddin
Publisher : John Wiley & Sons
ISBN 13 : 1119650984
Total Pages : 496 pages
Book Rating : 4.1/5 (196 download)
Download or read book Applications of Metal-Organic Frameworks and Their Derived Materials written by Inamuddin and published by John Wiley & Sons. This book was released on 2020-06-10 with total page 496 pages. Available in PDF, EPUB and Kindle. Book excerpt: Metal–organic frameworks (MOFs) are porous crystalline polymers constructed by metal sites and organic building blocks. Since the discovery of MOFs in the 1990s, they have received tremendous research attention for various applications due to their high surface area, controllable morphology, tunable chemical properties, and multifunctionalities, including MOFs as precursors and self-sacrificing templates for synthesizing metal oxides, heteroatom-doped carbons, metal-atoms encapsulated carbons, and others. Thus, awareness and knowledge about MOFs and their derived nanomaterials with conceptual understanding are essential for the advanced material community. This breakthrough new volume aims to explore down-to-earth applications in fields such as biomedical, environmental, energy, and electronics. This book provides an overview of the structural and fundamental properties, synthesis strategies, and versatile applications of MOFs and their derived nanomaterials. It gives an updated and comprehensive account of the research in the field of MOFs and their derived nanomaterials. Whether as a reference for industry professionals and nanotechnologists or for use in the classroom for graduate and postgraduate students, faculty members, and research and development specialists working in the area of inorganic chemistry, materials science, and chemical engineering, this is a must-have for any library.
Author : David C Sherrington
Publisher : Royal Society of Chemistry
ISBN 13 : 1847551963
Total Pages : 282 pages
Book Rating : 4.8/5 (475 download)
Download or read book Supported Catalysts and Their Applications written by David C Sherrington and published by Royal Society of Chemistry. This book was released on 2007-10-31 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt: The need to improve both the efficiency and environmental acceptability of industrial processes is driving the development of heterogeneous catalysts across the chemical industry, including commodity, specialty and fine chemicals and in pharmaceuticals and agrochemicals. Drawing on international research, Supported Catalysts and their Applications discusses aspects of the design, synthesis and application of solid supported reagents and catalysts, including supported reagents for multi-step organic synthesis; selectivity in oxidation catalysis; mesoporous molecular sieve catalysts; and the use of Zeolite Beta in organic reactions. In addition, the two discrete areas of heterogeneous catalysis (inorganic oxide materials and polymer-based catalysts) that were developing in parallel are now shown to be converging, which will be of great benefit to the whole field. Providing a snapshot of the state-of-the-art in this fast-moving field, this book will be welcomed by industrialists and researchers, particularly in the agrochemicals and pharmaceuticals industries.
Author : Mark Crocker
Publisher : John Wiley & Sons
ISBN 13 : 3527344667
Total Pages : 634 pages
Book Rating : 4.5/5 (273 download)
Download or read book Chemical Catalysts for Biomass Upgrading written by Mark Crocker and published by John Wiley & Sons. This book was released on 2020-03-09 with total page 634 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive reference to the use of innovative catalysts and processes to turn biomass into value-added chemicals Chemical Catalysts for Biomass Upgrading offers detailed descriptions of catalysts and catalytic processes employed in the synthesis of chemicals and fuels from the most abundant and important biomass types. The contributors?noted experts on the topic?focus on the application of catalysts to the pyrolysis of whole biomass and to the upgrading of bio-oils. The authors discuss catalytic approaches to the processing of biomass-derived oxygenates, as exemplified by sugars, via reactions such as reforming, hydrogenation, oxidation, and condensation reactions. Additionally, the book provides an overview of catalysts for lignin valorization via oxidative and reductive methods and considers the conversion of fats and oils to fuels and terminal olefins by means of esterification/transesterification, hydrodeoxygenation, and decarboxylation/decarbonylation processes. The authors also provide an overview of conversion processes based on terpenes and chitin, two emerging feedstocks with a rich chemistry, and summarize some of the emerging trends in the field. This important book: -Provides a comprehensive review of innovative catalysts, catalytic processes, and catalyst design -Offers a guide to one of the most promising ways to find useful alternatives for fossil fuel resources -Includes information on the most abundant and important types of biomass feedstocks -Examines fields such as catalytic cracking, pyrolysis, depolymerization, and many more Written for catalytic chemists, process engineers, environmental chemists, bioengineers, organic chemists, and polymer chemists, Chemical Catalysts for Biomass Upgrading presents deep insights on the most important aspects of biomass upgrading and their various types.
Author : Eric G. Derouane
Publisher : Wiley-Interscience
ISBN 13 : 0470094206
Total Pages : 258 pages
Book Rating : 4.4/5 (7 download)
Download or read book Catalysts for Fine Chemical Synthesis, Microporous and Mesoporous Solid Catalysts written by Eric G. Derouane and published by Wiley-Interscience. This book was released on 2006-08-14 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: This series offers practical help for advanced undergraduate, graduate and postgraduate students, as well as experienced chemists in industry and academia working with catalysts in organic and organometallic synthesis. It features tested and validated procedures, authoritative reviews on classes of catalysts, and assessments of all types of catalysts. Micro- and Mesoporous Solid Catalysts describes the use of zeolites and mesoporous solids as catalysts for the production of fine and specialty chemicals. Specific tips and hints are provided and some typical procedures are described in detail In addition to discussing the pros and cons, several major organic transformations are examined including aromatic substitutions, heterocyclic ring formation, amines synthesis, oligomerisation, oxidation and hydroxylation, and other regioselective and stereoselective reactions Features tutorial introductory chapters, including tips and hints for achieving successful organic transformations Important reactions are featured together with recommendations to resolve potential problems.
Author : Mathew David Dembo
Publisher :
ISBN 13 :
Total Pages : 67 pages
Book Rating : 4.:/5 (112 download)
Download or read book Synthesis of a Bifunctional Heterogeneous Catalyst for the Conversion of Lignocellulosic Biomass Into Precursors for Alternative Fuels and Fine Chemicals written by Mathew David Dembo and published by . This book was released on 2013 with total page 67 pages. Available in PDF, EPUB and Kindle. Book excerpt: The overall goal of the research described here is to develop synthetic routes to bifunctional reagents that can be tethered into silicate matrices derived from the tin functionalized cube, Si8O20(SnMe3)8. The critical functional group required for reaction with cubic silicate building block is a chlorosilane, and we additionally wish to incorporate both acid and ionic liquid groups. Once in hand, a crosslinking metathesis reaction will incorporate these reagents into porous silicate matrices derived from the Si8O20 cube, creating platforms with both acid and ionic liquid groups tethered to their surfaces. The synthesis of a family of bifunctional compounds containing silyl chloride groups "tethered" to either imidazolium-based ionic liquid groups or aryl sulfonic acid groups is described. The general synthetic strategy involved an initial platinum catalyzed hydrosilation coupling of an allylbenzene or 1-allyl-3-N-benzyl-imidazolium reagent to produce a silane group containing at least one chloride substituent. Sulfonation of the aromatic rings to produce sulfonic acid groups proceeds smoothly and in high yield with chlorosulfonic acid. These reagents were subsequently reacted with the octatrimethyltin silicate cube, to produce cross-linked silicate matrices containing different combinations of tethered imidazolium groups and sulfonic acids to their surfaces. These functionalized solids were tested for catalytic activity in the hydrolysis of the cellulose model compound, cellobiose, and the dehydration of glucose to hydroxymethyl furfural or levulinic acid.
Author : Richard Buckle
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (52 download)
Download or read book The Development of Supported Materials as Potentially Reusable Heterogeneous Catalysts for Fine Chemical Synthesis written by Richard Buckle and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Stan M. Roberts
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (17 download)
Download or read book Catalysts for fine chemical synthesis written by Stan M. Roberts and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Stanley M. Roberts
Publisher : Wiley-Interscience
ISBN 13 : 9780470516058
Total Pages : 0 pages
Book Rating : 4.5/5 (16 download)
Download or read book Catalysts for Fine Chemical Synthesis, 5 Volume Set written by Stanley M. Roberts and published by Wiley-Interscience. This book was released on 2007-11-19 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This series aims to be a practical help for advanced undergraduate, graduate and postgraduate students, as well as experienced chemists in industry and academia working in organic and organometallic synthesis. It features tested and validated procedures, authoritative reviews on classes of catalysts, and assessments of all types of catalysts. The source of starting materials and reagents, hints, tips and safety advice (where appropriate) are given to ensure, as far as possible, that the procedures are reproducible. Comparisons to alternative methodology are given and relevant references to the primary literature are cited. The five volumes in this set are: Volume 1: Hydrolysis, Oxidation and Reduction. Volume 2: Catalysis by Polyoxometalates Volume 3: Metal Catalysed Carbon-Carbon Bond-Forming Reactions Volume 4: Microporous and Mesoporous Solid Catalysts Volume 5: Regio- and Stereo-Controlled Oxidations and Reductions
