Download or read book Guanidines as Reagents and Catalysts II written by Philipp Selig and published by Springer. This book was released on 2017-04-12 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: The series Topics in Heterocyclic Chemistry presents critical reviews on present and future trends in the research of heterocyclic compounds. Overall the scope is to cover topics dealing with all areas within heterocyclic chemistry, both experimental and theoretical, of interest to the general heterocyclic chemistry community. The series consists of topic related volumes edited by renowned editors with contributions of experts in the field. All chapters from Topics in Heterocyclic Chemistry are published Online First with an individual DOI. In references, Topics in Heterocyclic Chemistry is abbreviated as Top Heterocycl Chem and cited as a journal
Download or read book Guanidines as Reagents and Catalysts I written by Philipp Selig and published by Springer. This book was released on 2017-04-18 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt: The series Topics in Heterocyclic Chemistry presents critical reviews on present and future trends in the research of heterocyclic compounds. Overall the scope is to cover topics dealing with all areas within heterocyclic chemistry, both experimental and theoretical, of interest to the general heterocyclic chemistry community. The series consists of topic related volumes edited by renowned editors with contributions of experts in the field. All chapters from Topics in Heterocyclic Chemistry are published Online First with an individual DOI. In references, Topics in Heterocyclic Chemistry is abbreviated as Top Heterocycl Chem and cited as a journal
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 Chiral Guanidines as Chiral Shift Reagents for Imino Acids and as Catalysts for Transamination written by Jonathan Shung Him Lau and published by . This book was released on 2014 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Chiral Guanidines as Chiral Shift Reagents for Imino Acids and as Catalysts for Transamination written by Jonathan Shung Him Lau and published by . This book was released on 2014 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Amino Acids Insights and Roles in Heterocyclic Chemistry written by Zerong Wang and published by CRC Press. This book was released on 2023-05-26 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the second volume of a first-of-its-kind four-volume book set that provides readers with up-to-date information on α-amino acids, the potential challenges in working with α-amino acids, the protecting groups for the carboxyl, amino and side chain groups of the amino acids, and the most popular heterocyclic compounds that are originating from alpha-amino acids. These heterocyclic compounds include hydantoins, thiohydantoins (including 2-thiohydantoins, 4-thiohydantoins, 2,4-dithiohydantoins), 2,5-diketopiperazines, N-carboxyanhydrides, N-thiocarboxyanhydrides, sydnones, sydnonimines, azlactones, pseudoazlactones, and oxazolidin-5-ones. This is the first resource to comprehensively collect all the heterocycles that can be directly prepared from α-amino acids. In addition, almost all kinds of synthetic methods for a particular type of heterocycles from alpha-amino acids are included, along with the detailed mechanistic discussions and experimental procedures. In Volume 2: Hydantoins, Thiohydantoins, and 2,5-Diketopiperazines compiles the three IUPAC accepted nomenclature systems for heterocyclic compounds, which will be very useful for readers working in the heterocyclic chemistry field for giving synthesized molecules their correct names. In addition, three groups of heterocyclic compounds, i.e., hydantoins, thiohydantoins (including 2-thiohydantoin, 4-thiohydantoin and 2,4-dithiohydantoin), and 2,5-diketopiperazines, have been organized with updated literature information. Particularly, all three groups of heterocyclic compounds have demonstrated many important biological activities, particularly anticancer and antibacterial activities. On the other hand, these three groups of heterocycles can be applied as substrates to make other chemical derivatives, particularly novel unnatural amino acids. All their reactivities have been compiled and updated. The other volumes include: Volume 1: Protecting Groups Volume 3: N-Carboxyanhydrides, N-Thiocarboxyanhydrides, and Sydnones Volume 4: Azlactones and Oxazolidin-5-ones All together, this unique 4-volume set thoroughly covers the two types of heterocyclic compounds that are originated from alpha-amino acids, providing carefully compiled updated information with detailed examples. The author has shared many thoughtful insights based on his strong background in physical organic chemistry. The volumes will be highly valuable for graduate students and senior students, as well as for professors and researchers working in the field of medicinal and pharmaceutical chemistry, organic chemistry, organic synthesis, heterocycles, and proteins and peptides.
Download or read book Guanidines 2 written by Akitane Mori and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt: Guanidine is named for its similarity to the purine guanine which, in turn, is named for its principal source guano, which comes from the Inca word, huano, for dung. Guanidine, therefore, translates into dung-like, which is hardly a genteel way to introduce a subject. On the other hand, texts are seldom inspirational, "frequently crude and rarely literary and should be judged on how successfully they assemble, organize and present current data. I am impressed that the material which fol]ows goes a long way toward successfully achieving those goals. Tue International Guanidine Society is a synthesis of three groups of investigators: biologists studying guanidines as phosphagens, neurologists interested in guanidines as convulsants and nephrologists involved with guanidines as toxins. As a member of the latter group. I am gratified by the considerable progress this book represents. To begin with. there now appears to be a common theme which unifies current speculation concerning the metabolic origin of the guanidines in uremia. At the First International Congress in 1983, evidence was presented which supported the theory that certain guanidines were products of the mixed function oxidation of urea. This year's meeting brings together overwhelming data showing that methyl guanidine is an effect of active oxygen reacting with creatinine. An idolatry, worshipped throughout biochemistry, that urea and creatinine are inert byproducts of protein metabolism, is shown to have feet of clay.
Download or read book Proton coupled Electron Transfer written by Sebastião J. Formosinho and published by Royal Society of Chemistry. This book was released on 2012 with total page 169 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers the most recent developments in the field of PCET reactions, from the theoretical and experimental points of view.
Download or read book Handbook of Reagents for Organic Synthesis written by André B. Charette and published by John Wiley & Sons. This book was released on 2017-06-26 with total page 706 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Handbook is a compilation of 99 articles on diverse reagents and catalysts that describe the synthesis of heteroarenes, the building blocks of a wide range of chemicals used in pharma and chemical industries. Articles are selected from the e-EROS database and edited to make sure that it includes only the material relevant to the topic of the book and focus on the synthetic aspects. This makes the articles very focused on the needs of readers wanting information on specific syntheses of specific heteroarenes. In addition, the chemistry of each parent heteroarene is also included to ensure that the reader rapidly finds important information. The Handbook is a part of the Handbook of Reagents for Organic Chemistry series, aiming at collecting articles on a particular theme that individual researchers in academia or industry can use on a daily basis.
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 Handbook of Reagents for Organic Synthesis written by Tomislav Rovis and published by John Wiley & Sons. This book was released on 2016-10-17 with total page 725 pages. Available in PDF, EPUB and Kindle. Book excerpt: Spurred by the desire to make chemistry a sustainable and "greener" technology, the field of organocatalysis has grown to become one of the most important areas in synthetic organic chemistry. Organic catalysts can often replace potentially toxic metal catalysts and allow reactions to proceed under mild reaction conditions, thereby saving energy costs and rendering chemical processes inherently safer. More importantly perhaps, organocatalysis offers a complementary reactivity in many instances leading to increased versatility. This Handbook describes 126 key reagents for organocatalytic reactions and will be especially useful for professionals in the area of sustainable chemistry, medicinal research, as well as synthetic organic chemists working in academia and the pharmaceutical industry. All the information compiled in this volume is also available in electronic format on Wiley Online Library. The 126 reagents represented here are but a small fraction of the ca. 5,000 reagents available in the electronic Encyclopedia of Reagents for Organic Synthesis (e-EROS). e-EROS offers various search interfaces to locate reagents of interest, including chemical structure, substructure and reactions search modes. e-EROS is updated regularly with new and updated entries.
Download or read book New Horizons in Modern Catalysis Five Different Perspectives written by and published by Elsevier. This book was released on 2023-11-24 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt: New Horizons in Modern Catalysis: Six Different Perspectives, Volume 72 in the Advances in Catalysis series, highlights new advances in the field, with this new volume presenting interesting chapters on Carbanion-functionalized phosphines: New design elements for catalyst development, Molecular Electrocatalysts for Organic Electrosynthesis, Mechanistic aspects of secondary sphere modification in organocatalysis, Earth-Abundant Transition Metal-Catalyzed reactions with Iodine(III) reagents: from catalysis to mechanistic studies, Design of metal nanoparticles for better performance in catalysis, and Computational design of industrially relevant enzymes. Provides the authority and expertise of leading contributors from an international board of authors Presents the latest release in the Advances in Catalysis series Acts as a comprehensive platform for experimental and theoretical researchers
Download or read book Sustainable Catalysis written by Michael North and published by Royal Society of Chemistry. This book was released on 2016 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt: Focussing on catalysis without metals or other endangered elements, this book is an important reference for researchers working in catalysis and green chemistry.
Download or read book New Developments in Catalysis Research written by Lawrence P. Bevy and published by Nova Publishers. This book was released on 2005 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: The chemical or biological process whereby the presence of an external compound, a catalyst, serves as an agent to cause a chemical reaction to occur or to improve reaction performance without altering the external compound. Catalysis is a very important process from an industrial point of view since the production of most industrially important chemicals involve catalysis. Research into catalysis is a major field in applied science, and involves many fields of chemistry and physics. The new book brings together leading research in this vibrant field.
Download or read book Comprehensive Organic Functional Group Transformations written by Alan R. Katritzky and published by Elsevier. This book was released on 2003-03-21 with total page 964 pages. Available in PDF, EPUB and Kindle. Book excerpt: A vast range of different functional groups is potentially available from the attachment of three or four heteroatoms to carbon. Some of these are abundantly represented in the literature, others are rare, and many have yet to be described. The aim of this volume is to describe the synthesis of examples of known functional groups and to highlight those that are little known or unknown. All possible combinations of heteroatoms have been surveyed, with the exception of complexes in which carbon atoms are bonded only to transition elements. The material is organised in four parts: tetracoordinated carbon atoms bearing three attached heteroatoms are covered in Part 1, and those bearing four heteroatoms in Part II; the synthesis of tricoordinated carbon atoms with three attached heteroatoms is described in Part III; stabilized radicals and carbocations with three attached heteroatoms are covered briefly in Part IV.
Download or read book Recent Advances in Organocatalysis written by Iyad Karamé and published by BoD – Books on Demand. This book was released on 2016-09-28 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt: Organocatalysis has recently attracted enormous attention as green and sustainable catalysis. It was realized as a fundamental field providing wide families of catalysts for important organic transformations. It will certainly develop in the future. Given the diversity of accessible transformations, metal-catalyzed reactions have become major tools in organic synthesis that will undoubtedly continue to have an important impact in the future. Alternatively, over the last years, a metal-free approach such as organocatalysis has reached a level of faithfulness, allowing researchers to discover new catalytic systems based on engagement of new or early-prepared organic molecules as organocatalysts. Organocatalysis meets green chemistry principles, especially the reduction of toxicity and chemical accidents, the biodegradability, and the use of benign and friendlier reaction media and conditions.
Download or read book Guanidines written by Akitane Mori and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 1978, we had the first research meeting of guanidine compound analysis in Okayama, Japan. The purpose of the meeting was to standardize the methods of analyzing guanidino compounds, because the analytic methods, even, for example, that of normal plasma, were quite different from laboratory to laboratory at that time. More than ten laboratories joined in this research project. Thereafter, the purpose of the annual meetings was extended to cover general biochemistry of guanidino compounds, and every meeting has served to promote our mutual growth and progress. The last meeting of the Japan Guanidino Compounds Research Association in 1982 brought together more than 80 members, and about 30 papers were presented there. This, the 6th annual meeting, brings the International Symposium on Guani dino Compounds here to Tokyo. Recently, many scientists are engaged in the research of guanidine compounds, especially in the field of clinical bio chemistry. I am sure that the observation of guanidinosuccinic acid in the urine of uremic patients by Dr. Cohen's research group in 1963 ignited the recent exploration of the role of guanidino compounds in renal diseases. The study of guanidino compounds does, however, have a long history. The first knowledge of guanidine was obtained by Strecker in 1861 (Annalen der Chemie und Pharmacie, 118, 151- 177, 1981).
