Crown Ethers And Phase Transfer Catalysis In Polymer Science
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Crown Ethers And Phase Transfer Catalysis In Polymer Science
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Author : Lon Mathias
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-11-22
Crown Ethers And Phase Transfer Catalysis In Polymer Science written by Lon Mathias and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-11-22 with Technology & Engineering categories.
Phase transfer catalysis or interfacial catalysis is a syn thetic technique involving transport of an organic or inorganic salt from a solid or aqueous phase into an organic liquid where reaction with an organic-soluble substrate takes place. Over the past 15 years there has been an enormous amount of effort invested in the development of this technique in organic synthe sis. Several books and numerous review articles have appeared summarizing applications in which low molecular weight catalysts are employed. These generally include either crown ethers or onium salts of various kinds. While the term phase transfer catalysis is relatively new, the concept of using a phasetrans fer agent (PTA) is much older~ Both Schnell and Morgan employed such catalysts in synthesis of polymeric species in the early 1950's. Present developments are really extensions of these early applications. It has only been within the last several years that the use of phase transfer processes have been employed in polymer synthesis and modification. Similarly, the use of polymer-bound phase transfer agents is also a recent development. These and related areas have nonetheless enjoyed explosive growth as mea sured by the number of publications and the variety of applica tions which have appeared. Several reviews dealing with these l 6 polymer-related investigations have been published.
Crown Ethers And Phase Transfer Catalysis In Polymer Science
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Author : Lon Mathias
language : en
Publisher:
Release Date : 2014-09-01
Crown Ethers And Phase Transfer Catalysis In Polymer Science written by Lon Mathias and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-09-01 with categories.
Handbook Of Phase Transfer Catalysis
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Author : Y. Sasson
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Handbook Of Phase Transfer Catalysis written by Y. Sasson and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Technology & Engineering categories.
Phase transfer catalysis is a sophisticated chemical technique which can be used to perform a variety of chemical reactions under mild conditions and with improved control. Since the concept was developed, both the theoretical and practical synthetic applications have seen considerable development, to the point where the technique can be applied to many areas of chemistry. Thus, phase transfer methods are now utilized in many applications, from research chemistry to full-scale production, where the benefits of faster, cleaner and more selective reactions are required. In this new book, the editors have brought together a range of contributors, each of whom is working at the forefront of the technology, to provide a clear, concise and ahtoritative review of this important area of chemistry. Industrial and academic chemists working on the synthesis, scale-up, production or analysis of a wide range of chemical products will find this book an essential reference on phase transfer technology.
Phase Transfer Catalysis
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Author : C.M. Starks
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Phase Transfer Catalysis written by C.M. Starks and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
Since 1971 when useful working concepts for the technique of phase-transfer catalysis (PTC) were introduced, the understanding, development, and applica tions of this method for conducting organic reactions has expanded exponentially. PTC has brought vast new dimensions and options to chemists and chemical engineers. From its use in less than ten commercial processes in 1975, PTC use has increased so that in the early 1990s it is involved in more than 600 industrial applications to manufacture products valued at between 10 and 20 billion U.S. dollars. PTC is widely used for simple organic reactions, steps in synthesis of pharmaceuticals, agricultural chemicals, perfumes, ftavorants, and dyes; for specialty polymerization reactions, polymer modifications, and monomer synthe sis; for pollution and environmental control processes; for analysis oftrace organic and inorganic compounds; and for many other applications. Often, PTC offers the best (and sometimes only) practical technique to obtain certain products. The authors experience in teaching a short course on phase-transfer catalysis has shown to us that a newcomer to PTC can easily be frustrated and confused by the large amount of information available in the literature and in patents. The purpose of this book, therefore, was to bring this information together in a logical and user-friendly way, without sacrificing matters of scholarly and fundamental importance.
Phase Transfer Catalysis
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Author : Charles M. Starks
language : en
Publisher:
Release Date : 1987
Phase Transfer Catalysis written by Charles M. Starks and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1987 with Science categories.
Phase Transfer Catalysis
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Author : Marc Halpern
language : en
Publisher:
Release Date : 1997
Phase Transfer Catalysis written by Marc Halpern and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with Science categories.
The symposium was held in Honolulu in December 1995 as part of the International Chemical Congress of Pacific Basin Societies. The 22 papers document the research over the past decade that has allowed the exponential growth of phase-transfer catalysis in both laboratories and the commercial manufacture of organic chemicals and polymers. Among the topics are mechanisms and applications of solid-liquid phase-transfer catalysis, micellar catalysis in two-phase systems, the use of chiral quaternary salts in asymmetric synthesis, and the rate- limiting step in triphase catalysis for esterifying phenols. Annotation copyrighted by Book News, Inc., Portland, OR.
Phase Transfer Catalysis
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Author : Charles M. Starks
language : en
Publisher:
Release Date : 1987-01-01
Phase Transfer Catalysis written by Charles M. Starks and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1987-01-01 with Phase-transfer catalysis categories.
Polymer Supported Chemical Reactions
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Author : P. Hodge
language : en
Publisher: iSmithers Rapra Publishing
Release Date : 1991
Polymer Supported Chemical Reactions written by P. Hodge and has been published by iSmithers Rapra Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991 with Catalysts categories.
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.
Phase Transfer Catalysis
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Author : Eckehard Volker Dehmlow
language : en
Publisher: Wiley-VCH
Release Date : 1993-05-13
Phase Transfer Catalysis written by Eckehard Volker Dehmlow and has been published by Wiley-VCH this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993-05-13 with Science categories.
E. V. Dehmlow, S. S. Dehmlow Phase Transfer Catalysis Third, Revised and Enlarged Edition Phase Transfer Catalysis has matured, and so has this book. Certain PTC-variants have become standard techniques in the lab, and PTC may be on the brink of large-scale use. The new edition describes important new developments in PTC. Furthermore, it has been extensively updated and offers a comprehensive list of very recent references. New material has been added on solid/liquid PTC enantioselective reactions metal-organic reactions reduction and oxidation reactions elimination and substitution reactions
Phase Transfer Catalysis In Organic Synthesis
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Author : William P. Weber
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Phase Transfer Catalysis In Organic Synthesis written by William P. Weber and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
The field of phase transfer catalysis is a tribute to the chemists involved in process development research. Phase transfer catalysis is a solution to numerous cost and yield problems encountered regularly in industrial laboratories. In fact, much of the early work in this area was conducted by industrial chemists although the work was not labelled phase transfer catalysis at the time. We certainly do not intend to minimize the contributions of academic chemists to this field, but it is an unalterable fact that much of the early understanding and many of the early advances came from industrial laboratories. A special tribute is due to Dr. Charles Starks of the Continental Oil Company. By the mid sixties, Starks had formulated the principles of phase transfer catalysis and had applied for patents on many reactions that others were later to examine in somewhat greater detail. His mechanistic model of phase transfer catalysis still stands up well today and is a model for much of the thinking in this area. It is fitting that Starks suggested the name "phase transfer catalysis" by which the whole field is now known. We wish to thank a number of people who have aided us in many ways in the preparation of this volume. We very much appreciate the helpful discussions and insights provided by Drs. Henry Stevens and Andrew Kaman of PPG Industries in Barberton, Ohio. We also thank Dr. L. A.