Download or read book Polymer supported Reactions in Organic Synthesis written by Philip Hodge and published by John Wiley & Sons. This book was released on 1980 with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Polymer Supported Catalysts and Reagents in Synthetic Organic Chemistry written by Kim D. Janda and published by . This book was released on 2002 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Polymer Supported Organic Catalysts written by Narendra Chauhan and published by CRC Press. This book was released on 2024-07-26 with total page 247 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polymer-supported organic catalysts are largely insoluble in most reaction solvents, which allows for easy recovery and recycling of the catalysts. They are generally stable, readily available, and environmental friendly, so they have attracted the interest of many synthetic chemists in the industrial and academic fields. In this book, different types of polymer-supported catalysts based on peptides, polystyrene, polyethers, poly(acrylic acid), poly(ethylene imine), poly(2-oxazoline), poly(isobutylene), poly(norbornene), etc., as well as metals are included with their synthetic organic synthesis applications. It is believed that this work will be of interest to organic chemists, material scientists, chemical engineers, polymer scientists and technologists.

Download or read book Polymers as Aids in Organic Chemistry written by N.K Mather and published by Elsevier. This book was released on 2012-12-02 with total page 271 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polymers as Aids in Organic Chemistry covers the broad classifications and application of polymers in organic chemistry. This book is organized into 15 chapters that focus on the transformation of polymers and their role in other reagents that must be easily separated from their final product. After a brief introduction to polymer chemistry, the book presents a tabulation of the various types of polymers that have been used and the methods for their characterization. It then discusses the use of polymers as supports in peptide, oligonucleotide, and oligosaccharide chemistry; in peptide sequencing; in monofunctionalized difunctional compounds preparation, as aids in asymmetric syntheses; and as trapping agents in the determination of reaction intermediates. The subsequent chapters describe the use of polymers as catalysts, with particular emphasis on transition metals immobilized in the polymer matrix and used as catalysts. The concluding chapters examine polymer-immobilized compounds, enzymes, and whole cells that have been used to carry out a large number of reaction, most of which impinge on the area of organic chemistry. Polymer scientists and researchers and organic chemists will find this book invaluable.

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.

Download or read book Polymeric Reagents and Catalysts written by Warren T. Ford and published by . This book was released on 1986 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: Examines recent advances in the use of polymeric reagents and catalysts with a special emphasis on new compounds, synthetic methods, and industrial processes. Brings these advances to the attention of those who are involved in organic synthesis and desire a more thorough understanding of polymers and polymeric reagents. Contains comprehensive chapters devoted to polymeric oxidizing agents, Wittig reagents, and synthesis of cross-linked polymeric templates for chiral recognition. Presents opportunities for invention and use of many new polymeric reagents and catalysts.

Download or read book Polymer Supported Chemical Reactions written by P. Hodge and published by iSmithers Rapra Publishing. This book was released on 1991 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polymer supported chemical reactions may include those using supported substrates, reagents and catalysts, and this report describes all three types. In all cases the most frequent reason for the use of a polymeric support will be the ease of separation of the supported and the low molecular c099 species. An additional indexed section containing several hundred abstracts from the Rapra Polymer Library database provides useful references for further reading.

Download or read book Polymer Supported Reagents and Catalysts written by and published by . This book was released on 2005 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Polymeric Materials in Organic Synthesis and Catalysis written by Michael R. Buchmeiser and published by Wiley-VCH. This book was released on 2003-09-29 with total page 592 pages. Available in PDF, EPUB and Kindle. Book excerpt: Publisher description

Download or read book Polymer Supported Reagents Catalysts and Scavengers in Organic Synthesis written by Richard D. Caldwell and published by . This book was released on 2003 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Power of Functional Resins in Organic Synthesis written by Fernando Albericio and published by John Wiley & Sons. This book was released on 2008-12-17 with total page 683 pages. Available in PDF, EPUB and Kindle. Book excerpt: While many books cover solid phase synthesis and combinatorial synthesis, this one is unique in its exclusive coverage of the other aspects of solid-phase synthesis. As such, it contains everything you need to know -- from supported reagents, to scavengers, resins, and the synthesis of biomolecules and natural products. An invaluable companion for all chemists and biochemists working in university research and industry.

Download or read book Lanthanides Chemistry and Use in Organic Synthesis written by Shu Kobayashi and published by Springer. This book was released on 2003-07-01 with total page 311 pages. Available in PDF, EPUB and Kindle. Book excerpt: With contributions by numerous experts

Download or read book Handbook of Reagents for Organic Synthesis Reagents for High Throughput Solid Phase and Solution Phase Organic Synthesis written by Jonathan A. Ellman and published by Wiley. This book was released on 2005-05-20 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since its discovery in 1963 by R. B. Merrifield, solid-phase synthesis, or polymer-supported synthesis, has become an essential technique with its wide use in the synthesis of peptides and other oligomers. Solid-Phase Reactions provides extensive and comprehensive information on this form of synthesis in a format ideal for those working in the laboratory. As part of the Handbook of Reagents in Organic Synthesis Series, this new addition extends the wealth of information available to the chemist at the bench. All content has been expertly collected and presented by an internationally recognised and respected editorial board led by Professor Peter Wipf.

Download or read book Handbook of Reagents for Organic Synthesis written by and published by . This book was released on 1999 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book New Methodologies and Techniques for a Sustainable Organic Chemistry written by Alessandro Mordini and published by Springer Science & Business Media. This book was released on 2008-04-17 with total page 339 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chemical industries have to face the challenge of finding adequate processes to produce large quantities of new products, while at the same time decreasing both the impact on the environment and the risk of disaster. This book addresses this challenge. It discusses the problems of environmentally benign organic processes on an interdisciplinary approach. The book features experts in selective catalysis, development of new reagents and methods who present their recent results.

Download or read book Superbases for Organic Synthesis written by Tsutomu Ishikawa and published by John Wiley & Sons. This book was released on 2009-01-26 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: Guanidines, amidines and phosphazenes have been attracting attention in organic synthesis due to their potential functionality resulting from their extremely strong basicity. They are also promising catalysts because of their potential for easy molecular modification, possible recyclability, and reduced or zero toxicity. Importantly, these molecules can be derived as natural products – valuable as scientists move towards “sustainable chemistry”, where reagents and catalysts are derived from biomaterial sources. Superbases for Organic Synthesis is an essential guide to these important molecules for preparative organic synthesis. Topics covered include the following aspects: an introduction to organosuperbases physicochemical properties of organic superbases amidines and guanidines in organic synthesis phosphazene: preparation, reaction and catalytic role polymer-supported organosuperbases application of organosuperbases to total synthesis related organocatalysts: proton sponges and urea derivatives amidines and guanidines in natural products and medicines Superbases for Organic Synthesis is a comprehensive, authoritative and up-to-date guide to these important reagents for organic chemists, drug discovery researchers and those interested in the chemistry of natural products.

Download or read book Development of Phosphorus Mediated Reactions in Organic Synthesis Y Xia Xuanshu B SC Sun Yat Sen U written by Xuanshu Xia and published by Open Dissertation Press. This book was released on 2017-01-27 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation, "Development of phosphorus-mediated reactions in organic synthesis / y Xia Xuanshu, B. Sc., Sun Yat-sen U" by Xuanshu, Xia, 夏轩庶, 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: Polymer-supported catalysts and reagents have been widely used in organic chemistry because they could facilitate the purification procedures and usually be recycled. Much research has been directed to polymer-supported catalysts and reagents, mainly focusing on these aspects, such as new polymer support, new application in organic chemistry, different modifications and so on. Many polymer-supported phosphine reagents have been developed for Wittig reaction. However, most of them suffer from swelling issue or low loading. A new polyethlyeneimine-supported triphenylphosphine has been synthesized and used as a highly loaded bifunctional homogeneous reagent in a range of one-pot Wittig reactions. All the substrates afforded desired products in high yields after only simple purification procedures. Furthermore, it also served efficiently in reaction cascades involving a one-pot Wittig reaction followed by conjugate reduction of alkene products. In these transformations the phosphine oxide generated in Wittig reaction served as the catalyst for activating trichlorosilane in the subsequent reduction reaction. Triphenylphosphine oxide is always considered as a byproduct of Wittig and Mitsunobu reactions which complicates the purification procedures. One option to utilize it is its application in halogenation reaction with oxalyl halide. Heterogeneous polymer-supported triphenylphosphine oxides based on the rasta resin architecture have been synthesized, and applied as reagent precursors in a wide range of halogenation reactions. The rasta resin-triphenylphosphine oxides reacted with either oxalyl chloride or oxalyl bromide to form the corresponding halophosphonium salts, and these in turn reacted with alcohols, aldehydes, aziridines and epoxides to form halogenated products in high yields after simple purification. The polymer-supported triphenylphosphine oxides formed as a byproduct during these reactions could be recovered and reused numerous times with no appreciable decrease in reactivity. Another option is to use triphenylphosphine oxide as catalyst in organic synthesis. A highly regioselective 1,4-reduction of conjugated polyunsaturated ketones catalyzed by triphenylphosphine oxide is described. In the presence of triphenylphosphine oxide, conjugated di-, tri-, and tetraenones were selectively α,β-reduced using trichlorosilane without over reduction or isomerization, and all the substrates rendered desired products in high yields. Furthermore, 1,4-reduction products were successfully obtained in sequential one-pot Wittig/conjugate reduction reaction, triphenylphosphine oxide generated in Wittig reaction served as the catalyst for reduction reaction. In addition, natural moth pheromones and their analogues were synthesized in high yields using this method. Finally, the synthesis of γ-sanshool and hydroxy-γ-sanshool is depicted. The synthetic route started from simple and commercially available building blocks using an alkyne for E, E-2,4-diene group of the key synthetic intermediate 2E,4E,8Z,10E,12E-tetradecapentaenoic acid, which in turn was converted into both γ-sanshool and hydroxy-γ-sanshool by reaction with the appropriate amines. DOI: 10.5353/th_b5435655 Subjects: Supported reagents Polymers