Download or read book Quaternary Ammonium Salts written by R. Alan Jones and published by Elsevier. This book was released on 2000-11-14 with total page 591 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text provides experimental methods for a wide range of organic reactions, systematically arranged according to reaction type, and describes the advantages and limitations of the procedures. Traditional methods to speed up organic reactions involve energy-consuming processes and costly and environmentally "unfriendly" solvents. Additionally, isolation of the product requires energy and time-consuming purification processes. A simple solution, especially for reactions involving anionic reactants, is the use of phase-transfer catalysis. Quaternary ammonium cations have the ability to transfer the anionic reactants as non-solvated ion-pairs from aqueous media into organic media. The resultant effect is to increase the rate of the organic reaction by enhancing the reactivity of the anionic species and increasing the encounter rate with the organic substrate. Side reactions are frequently eliminated so that the overall yield of the desired product is increased.Quaternary Ammonium Salts presents procedures for reducing reaction times and the need for extreme conditions, which are frequently encountered under standard reaction procedures.This is the only book to be published on quaternary ammonium salts. Best Synthetic Methods volumes allow the practicing synthetic chemist to choose between all the alternatives and assess their real advantages and limitations. Each volume of the series deals with a particular topic from a practical point of view, giving detailed examples and precise experimental directions and hints. With the emphasis on laboratory use, these volumes represent a comprehensive and practical guide to modern synthetic organic chemistry.

Download or read book Asymmetric Phase Transfer Catalysis written by Keiji Maruoka and published by John Wiley & Sons. This book was released on 2008-09-08 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt: Edited by the leading expert on the topic, this is the first book to present the latest developments in this exciting field. Alongside the theoretical aspects, the top contributors provide practical protocols to give readers additional important information otherwise unavailable. A must for every synthetic chemist in academia and industry.

Download or read book Strategic Applications of Named Reactions in Organic Synthesis written by Laszlo Kurti and published by Elsevier. This book was released on 2005-04-29 with total page 808 pages. Available in PDF, EPUB and Kindle. Book excerpt: Kurti and Czako have produced an indispensable tool for specialists and non-specialists in organic chemistry. This innovative reference work includes 250 organic reactions and their strategic use in the synthesis of complex natural and unnatural products. Reactions are thoroughly discussed in a convenient, two-page layout--using full color. Its comprehensive coverage, superb organization, quality of presentation, and wealth of references, make this a necessity for every organic chemist. - The first reference work on named reactions to present colored schemes for easier understanding - 250 frequently used named reactions are presented in a convenient two-page layout with numerous examples - An opening list of abbreviations includes both structures and chemical names - Contains more than 10,000 references grouped by seminal papers, reviews, modifications, and theoretical works - Appendices list reactions in order of discovery, group by contemporary usage, and provide additional study tools - Extensive index quickly locates information using words found in text and drawings

Download or read book Organic Reactions Volume 113 written by P. Andrew Evans and published by John Wiley & Sons. This book was released on 2023-09-06 with total page 868 pages. Available in PDF, EPUB and Kindle. Book excerpt: A carefully curated review of the scientific literature, Volume 113 of Organic Reactions presents critical discussions of widely used organic reactions or particular steps of a reaction. The material is treated from a preparative viewpoint, with emphasis on limitations, interfering influences, effects of structure and the selection of experimental techniques. The work includes tables that contain all possible examples of the reaction under consideration. Detailed procedures illustrate the significant modifications of each method. Launched in 1942, the Organic Reactions series today is a leading secondary- and tertiary-level source for organic chemists across the world.

Download or read book Organic Reactions written by and published by John Wiley & Sons. This book was released on 2020-11-23 with total page 928 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 104th volume in this series for organic chemists in academia and industry presents critical discussions of widely used organic reactions or particular phases of a reaction. The material is treated from a preparative viewpoint, with emphasis on limitations, interfering influences, effects of structure and the selection of experimental techniques. The work includes tables that contain all possible examples of the reaction under consideration. Detailed procedures illustrate the significant modifications of each method.

Download or read book Organic Reactions Volume 101 written by and published by John Wiley & Sons. This book was released on 2020-03-17 with total page 990 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 101st volume in this series for organic chemists in academia and industry presents critical discussions of widely used organic reactions or particular phases of a reaction. The material is treated from a preparative viewpoint, with emphasis on limitations, interfering influences, effects of structure and the selection of experimental techniques. The work includes tables that contain all possible examples of the reaction under consideration. Detailed procedures illustrate the significant modifications of each method.

Download or read book Organic Reactions Volume 94 written by and published by John Wiley & Sons. This book was released on 2018-01-04 with total page 592 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 94th volume in this series for organic chemists in industry presents critical discussions of widely used organic reactions or particular phases of a reaction. The material is treated from a preparative viewpoint, with emphasis on limitations, interfering influences, effects of structure and the selection of experimental techniques. The work includes tables that contain all possible examples of the reaction under consideration. Detailed procedures illustrate the significant modifications of each method.

Download or read book Organic Reactions Volume 88 written by and published by John Wiley & Sons. This book was released on 2016-01-21 with total page 671 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volume 88 represents the tenth single-chapter-volume produced in our 73-year history. Such single-chapter volumes represent definitive treatises on extremely important chemical transformations. The success of the research efforts over the past 20 years forms the basis for the single chapter in this volume namely, Hydroamination of Alkenes by Alexander L. Reznichenko and Kai C. Hultzsch. The authors have compiled an enormous (and growing) literature and distilled it into an extraordinarily useful treatise on all aspects of the hydroamination process.

Download or read book Organic Reactions Volume 92 written by and published by John Wiley & Sons. This book was released on 2017-05-24 with total page 787 pages. Available in PDF, EPUB and Kindle. Book excerpt: The latest volume in this series for organic chemists in industry presents critical discussions of widely used organic reactions or particular phases of a reaction. The material is treated from a preparative viewpoint, with emphasis on limitations, interfering influences, effects of structure and the selection of experimental techniques. The work includes tables that contain all possible examples of the reaction under consideration. Detailed procedures illustrate the significant modifications of each method.

Download or read book Organic Reactions written by and published by John Wiley & Sons. This book was released on 2021-04-09 with total page 928 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 105th volume in this series for organic chemists in academia and industry presents critical discussions of widely used organic reactions or particular phases of a reaction. The material is treated from a preparative viewpoint, with emphasis on limitations, interfering influences, effects of structure and the selection of experimental techniques. The work includes tables that contain all possible examples of the reaction under consideration. Detailed procedures illustrate the significant modifications of each method.

Download or read book Organic Reactions Volume 84 written by Scott E. Denmark and published by John Wiley & Sons. This book was released on 2014-07-08 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt: The two chapters in Volume 84 describe transition metal catalyzed processes that form carbon-carbon bonds and carbon-oxygen bonds in very interesting and practical ways. The first chapter authored by Christina Moberg describes an important subset of one of the earliest and most important enantioselective carbon-carbon bond forming reactions that employ transition metal complexes, namely molybdenum-catalyzed, asymmetric allylic alkylations. The second chapter authored by Brian W. Michel, Laura D. Steffens, and Matthew S. Sigman deals with one of the oldest examples of transition metal catalyzed oxidation, known as the Wacker process.

Download or read book Organic Reactions Volume 60 written by Larry E. Overman and published by John Wiley & Sons. This book was released on 2002-09-09 with total page 579 pages. Available in PDF, EPUB and Kindle. Book excerpt: Organic Reactions is a comprehensive series devoted to important synthetic reactions, each volume having wide applicability. Each chapter focuses on a single reaction or a definitive phase of a reaction, and each is written by world-renowned chemists with extensive hands-on experience in their specialties. The material is presented from a preparative point of view, and particular attention is given to reaction limitations, interfering influences, effects of chemical structure, and the selection of experimental conditions. Each reaction includes information about its conditions, products, and yields, where available, and is fully referenced to the primary literature. The authors also include detailed procedures illustrating the significant modifications of the chemical reaction, as well as tables featuring all pertinent data about the reaction. Volume 60 contains two chapters: "Epoxide Migration (Payne Rearrangement) and Related Reactions," by Robert M. Hanson, and "The Intramolecular Heck Reaction," by J.T. Link. The most comprehensive and highly focused treatment of important organic reactions currently available, this series represents an important addition to chemistry libraries in both academic and industrial settings, and is a valuable resource for both students and professionals in the field.

Download or read book Radical and Ion pairing Strategies in Asymmetric Organocatalysis written by Maxime R Vitale and published by Elsevier. This book was released on 2017-07-21 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt: Considering the challenge of sustainability facing our society in the coming decades, catalysis is without any doubt a research area of major importance. In this regard, asymmetric organocatalysis, now considered a pillar of green chemistry, deserves particular attention. The first chapter of this volume examines the topic of asymmetric organocatalysis in light of radical chemistry. Recent important progress in this field has been attained by promoting the formation and harnessing the high reactivity of open-shell intermediates. Merging organocatalysis with radical chemistry has been the key to solving some longstanding bottlenecks, and has also significantly contributed to reinforcing the key role of organocatalysis in asymmetric catalysis. This chapter presents the most significant developments in this area, with a particular focus on asymmetric SOMO- and photoredox-organocatalyzed transformations. Chapter 2 focuses on quaternary ammonium salts (R4N+X-), especially chiral derivatives, and their behavior as unique catalysts in organocatalysis. Forming chiral ion-pairs capable of promoting asymmetric reactions, they also operate as unique "transporters involved in phase transfer catalytic processes between liquid–liquid or liquid–solid systems. Furthermore, they offer unique opportunities when forming cooperative ion-paired entities R4N+X-, allowing a synergistic implication of the counter-ion X- either as Brønsted bases or Lewis bases. Specific design of such chiral catalysts in modern chemistry and better insight into their mode of activation facilitates efficient and unprecedented chemical transformations. This chapter provides an overview of the use of chiral quaternary ammonium salts in organocatalysis, emphasizing both general mechanistic aspects and the scope of this approach. - Presents the most significant developments with a particular focus on asymmetric SOMO- and photoredox-organocatalyzed transformations - Givies a larger overview of chiral ammonium salts in organocatalysis rather than a specific review dedicated to specialists in this area - Affords a historical evolution of this field of research

Download or read book Organic Reactions Volume 115 written by P. Andrew Evans and published by John Wiley & Sons. This book was released on 2024-12-05 with total page 804 pages. Available in PDF, EPUB and Kindle. Book excerpt: A carefully curated review of the scientific literature, Volume 115 of Organic Reactions presents critical discussions of widely used organic reactions or particular steps of a reaction. The material is treated from a preparative viewpoint, with emphasis on limitations, interfering influences, effects of structure and the selection of experimental techniques. The work includes tables that contain all possible examples of the reaction under consideration. Detailed procedures illustrate the significant modifications of each method. Launched in 1942, the Organic Reactions series today is a leading secondary- and tertiary-level source for organic chemists across the world.

Download or read book Organic Reactions Volume 102 written by and published by John Wiley & Sons. This book was released on 2020-07-08 with total page 990 pages. Available in PDF, EPUB and Kindle. Book excerpt: Band 102 dieser Reihe für Organische Chemiker in Wissenschaft und Industrie präsentiert eine kritische Auseinandersetzung mit weit verbreiteten organischen Reaktionen oder bestimmten Phasen einer Reaktion. Betrachtet werden die notwendigen Vorbereitungen. Der Schwerpunkt liegt dabei auf Einschränkungen, Störeinflüssen, Struktureffekten und der Auswahl experimenteller Verfahren. Das Fachbuch beinhaltet Tabellen, die alle möglichen Beispiele für die jeweilige Reaktion beschreiben. Detaillierte Prozeduren zeigen wichtige Modifikationen jeder Methode.

Download or read book Organic Reactions Volume 108 written by and published by John Wiley & Sons. This book was released on 2022-01-26 with total page 1026 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 108th volume in this series for organic chemists in academia and industry presents critical discussions of the following widely used organic reactions: CYCLIZATION REACTIONS OF NITROGEN-CENTERED RADICALS Stuart W. McCombie, Béatrice Quiclet-Sire, and Samir Z. Zard TRANSITION-METAL-CATALYZED AMINOOXYGENATION OF ALKENES Sherry R. Chemler, Dake Chen, Shuklendu D. Karyakarte, Jonathan M. Shikora, and Tomasz Wdowik

Download or read book Organic Reactions Volume 91 written by and published by John Wiley & Sons. This book was released on 2016-12-27 with total page 796 pages. Available in PDF, EPUB and Kindle. Book excerpt: The latest volume in this series for organic chemists in industry presents critical discussions of widely used organic reactions or particular phases of a reaction. The material is treated from a preparative viewpoint, with emphasis on limitations, interfering influences, effects of structure and the selection of experimental techniques. The work includes tables that contain all possible examples of the reaction under consideration. Detailed procedures illustrate the significant modifications of each method.