Download or read book Asymmetric Synthesis with Chemical and Biological Methods written by Dieter Enders and published by John Wiley & Sons. This book was released on 2007-06-27 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt: Edited by two of the leading researchers in the field, this book provides a deep, interdisciplinary insight into stoichiometric and catalytic reactions in this continuously expanding area. A plethora of top German scientists with an international reputation covers various aspects, from classical organic chemistry to process development, and from the theoretical background to biological methods using enzymes. Throughout the focus is on the development of new synthetic methods in asymmetric synthesis, the synthesis of natural and bioactive compounds and the latest developments in both chemical and biological methods of catalysis, as well as the investigation of special technical and biotechnical aspects.

Download or read book Practical Synthetic Organic Chemistry written by Stéphane Caron and published by John Wiley & Sons. This book was released on 2020-02-05 with total page 850 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a hands-on guide for the organic chemist. Focusing on the most reliable and useful reactions, the chapter authors provide the information necessary for a chemist to strategically plan a synthesis, as well as repeat the procedures in the laboratory. Consolidates all the key advances/concepts in one book, covering the most important reactions in organic chemistry, including substitutions, additions, eliminations, rearrangements, oxidations, reductions Highlights the most important reactions, addressing basic principles, advantages/disadvantages of the methodology, mechanism, and techniques for achieving laboratory success Features new content on recent advances in CH activation, photoredox and electrochemistry, continuous chemistry, and application of biocatalysis in synthesis Revamps chapters to include new and additional examples of chemistry that have been demonstrated at a practical scale

Download or read book Principles of Asymmetric Synthesis written by R.E. Gawley and published by Elsevier. This book was released on 1996-11-21 with total page 395 pages. Available in PDF, EPUB and Kindle. Book excerpt: The world is chiral. Most of the molecules in it are chiral, and asymmetric synthesis is an important means by which enantiopure chiral molecules may be obtained for study and sale. Using examples from the literature of asymmetric synthesis (more than 1300 references), the aim of this book is to present a detailed analysis of the factors that govern stereoselectivity in organic reactions. It is important to note that the references were each individually checked by the authors to verify relevance to the topics under discussion. The study of stereoselectivity has evolved from issues of diastereoselectivity, through auxiliary-based methods for the synthesis of enantiomerically pure compounds (diastereoselectivity followed by separation and auxiliary cleavage), to asymmetric catalysis. In the latter instance, enantiomers (not diastereomers) are the products, and highly selective reactions and modern purification techniques allow preparation - in a single step - of chiral substances in 99% ee for many reaction types. After an explanation of the basic physical-organic principles of stereoselectivity, the authors provide a detailed, annotated glossary of stereochemical terms. A chapter on "Analytical Methods" provides a critical overview of the most common methods for analysis of stereoisomers. The authors then follow the 'tried-and-true' format of grouping the material by reaction type. Thus, there are four chapters on carbon-carbon bond forming reactions (enolate alkylations, organometal additions to carbonyls, aldol and Michael reactions, and cycloadditions and rearrangements), one chapter on reductions and hydroborations (carbon-hydrogen bond forming reactions), and one on oxidations (carbon-oxygen and carbon-nitrogen bond forming reactions). Leading references are provided to natural product synthesis that have been accomplished using a given reaction as a key step. In addition to tables of examples that show high selectivity, a transition state analysis is presented to explain - to the current level of understanding - the stereoselectivity of each reaction. In one case (Cram's rule) the evolution of the current theory is detailed from its first tentative (1952) postulate to the current Felkin-Anh-Heathcock formalism. For other reactions, only the currently accepted rationale is presented. Examination of these rationales also exposes the weaknesses of current theories, in that they cannot always explain the experimental observations. These shortcomings provide a challenge for future mechanistic investigations.

Download or read book Chiral Reagents for Asymmetric Synthesis written by Leo A. Paquette and published by John Wiley & Sons. This book was released on 2003-08-01 with total page 618 pages. Available in PDF, EPUB and Kindle. Book excerpt: Derived from the renowned, Encyclopedia of Reagents for Organic Synthesis (EROS), the related editors have created a new handbook which focuses on chiral reagents used in asymmetric synthesis and is designed for the chemist at the bench. This new handbook follows the same format as the Encyclopedia, including an introduction and an alphabetical arrangement of the reagents. As chiral reagents are the key for the successful asymmetric synthesis, choosing the right reagents is essential, in this handy reference the editors give details on how to prepare, store and use the reagents as well as providing key reactions to demonstrate where reagents have been successfully used. Comprehensive information on 226 reagents Covers 64 reagents which were not included in EROS All information in one easy to use volume – at an affordable price All reagents included will be added to e-EROS – please visit the site where you can gain access to over 50,000 reactions and 3,800 of the most frequently consulted reagents. Visit: www.interscience.wiley.com/eros

Download or read book Comprehensive Chirality written by and published by Newnes. This book was released on 2012-12-31 with total page 5635 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although many books exist on the subject of chiral chemistry, they only briefly cover chiral synthesis and analysis as a minor part of a larger work, to date there are none that pull together the background information and latest advances in one comprehensive reference work. Comprehensive Chirality provides a complete overview of the field, and includes chiral research relevant to synthesis, analytic chemistry, catalysis, and pharmaceuticals. The individual chapters in each of the 9 volumes provide an in depth review and collection of references on definition, technology, applications and a guide/links to the related literature. Whether in an Academic or Corporate setting, these chapters will form an invaluable resource for advanced students/researchers new to an area and those who need further background or answers to a particular problem, particularly in the development of drugs. Chirality research today is a central theme in chemistry and biology and is growing in importance across a number of disciplinary boundaries. These studies do not always share a unique identifying factor or subject themselves to clear and concise definitions. This work unites the different areas of research and allows anyone working or researching in chiral chemistry to navigate through the most essential concepts with ease, saving them time and vastly improving their understanding. The field of chirality counts several journals that are directly and indirectly concerned with the field. There is no reference work that encompasses the entire field and unites the different areas of research through deep foundational reviews. Comprehensive Chirality fills this vacuum, and can be considered the definitive work. It will help users apply context to the diverse journal literature offering and aid them in identifying areas for further research and/or for solving problems. Chief Editors, Hisashi Yamamoto (University of Chicago) and Erick Carreira (ETH Zürich) have assembled an impressive, world-class team of Volume Editors and Contributing Authors. Each chapter has been painstakingly reviewed and checked for consistent high quality. The result is an authoritative overview which ties the literature together and provides the user with a reliable background information and citation resource.

Download or read book Organic Syntheses Based on Name Reactions and Unnamed Reactions written by Alfred Hassner and published by Elsevier. This book was released on 2013-10-22 with total page 462 pages. Available in PDF, EPUB and Kindle. Book excerpt: Synthetically useful organic reactions or reagents are often referred to by the name of the discoverer(s) or developer(s). Older name reactions are described in text books, but more recently developed synthetically useful reactions that may have been associated occasionally with a name are not always well known. For neither of the above are experimental procedures or references easy to find. In this monograph approximately 500 name reactions are included, of which over 200 represent newer name reactions and modern reagents. Each of these reactions are extremely useful for the contemporary organic chemistry researcher in industry or academic institutions. This book provides the information in an easily accessible form. In addition to seminal references and reviews, one or more examples for each name reaction are provided and a complete typical experimental procedure is included, to enable the student or researcher to immediately evaluate reaction conditions. Besides an alphabetical listing of reactions and reagents, cross references permit the organic practitioner to find those name reactions or reagents that enable specific transformations, such as, conversion of amines to nitriles, stereoselective reduction, fluoroalkylation, phenol alkynylation, asymmetric syntheses, allylic alkylation, nucleoside synthesis, cyclopentanation, hydrozirconation, to name a few. Emphasis has been placed on stereoselective and regioselective transformations as well as on enantioselective processes. The listing of reactions and reagents is supported by four indexes.

Download or read book Chiral Auxiliaries and Chirogenesis written by Victor Borovkov and published by . This book was released on 2021 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Reprint Book highlights and overviews the most important and novel aspects of chiral auxiliary and chirogenesis in different natural/physical sciences and in modern technologies. In particular, some newly emerging classes of molecules used for these purposes are described. This book consists of four review articles and one research paper and is of interest for general chemistry readership, including graduate and postgraduate students, and for researchers specializing in the fields of chirality and stereochemistry.

Download or read book Principles and Applications of Asymmetric Synthesis written by Guo-Qiang Lin and published by John Wiley & Sons. This book was released on 2003-05-29 with total page 536 pages. Available in PDF, EPUB and Kindle. Book excerpt: Asymmetric synthesis remains a challenge to practicing scientistsas the need for enantiomerically pure or enriched compoundscontinues to increase. Over the last decade, a large amount ofliterature has been published in this field. Principles andApplications of Asymmetric Synthesis consolidates and evaluates themost useful methodologies into a one-volume resource for theconvenience of practicing scientists and students. Authored by internationally renowned scientists in the field, thisreliable reference covers more than 450 reactions and includesimportant stoichiometric as well as catalytic asymmetric reactions.The first chapter reviews the basic principles, commonnomenclature, and analytical methods, and the remainder of the bookis organized according to reaction type. The text examines suchtopics as: Carbon-carbon bond formations involving carbonyls, enamines,imines, and enolates Asymmetric C-O bond formations including epoxidation,dihydroxylation, and aminohydroxylation Asymmetric synthesis using the Diels-Alder reaction and othercyclizations Applications to the total synthesis of natural products Use of enzymes in asymmetric synthesis Practicing chemists in the pharmaceutical, fine chemical, andagricultural professions as well as graduate students will findthat Principles and Applications of Asymmetric Synthesis affordscomprehensive and current coverage.

Download or read book Advances in Triazole Chemistry written by Tahir Farooq and published by Elsevier. This book was released on 2020-11-28 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Triazole Chemistry reviews the ever-widening scope of triazole chemistry. Triazole is an exceptional structural motif with a range of applications across scientific disciplines, including materials science, organocatalysis, agrochemicals, and medicinal chemistry. These many applications of different classes of triazoles have promoted the development of a range of synthetic strategies over the past few years, which are presented here along with recent and ecofriendly methods for the synthesis of all types of triazoles. The book also reviews the recent notable applications in chemical ligation, peptidomimetics, carbohydrate chemistry, nanotechnology, and polymer and materials science. This comprehensive resource is ideal for researchers using triazoles in various disciplines, as well as chemists working in the pharmaceutical, polymer, and agrochemical industries. - Includes coverage of the role triazoles play in DNA synthesis - Features comprehensive information on 1,2,3-triazoles and 1,2,4-triazoles and their subclasses, synthesis, and applications - Serves as an ideal reference for researchers and chemists interested in using triazole chemistry for functionalization, modification, and development of target products

Download or read book Stereochemistry and Organic Reactions written by Dipak Kumar Mandal and published by Academic Press. This book was released on 2021-04-21 with total page 640 pages. Available in PDF, EPUB and Kindle. Book excerpt: Stereochemistry and Organic Reactions: Conformation, Configuration, Stereoelectronic Effects and Asymmetric Synthesis provides coverage on the stereochemistry of reactions of all mechanistic types, ranging from ionic, pericyclic and transition metal-catalyzed to radical and photochemical. Chapters cover acyclic molecules, cyclic molecules, the stereochemistry of organic reactions, the perturbation molecular orbital theory for the origin of stereoelectronic effects, and an introduction to the principles of stereoselectivity and hierarchical levels of asymmetric synthesis. Each chapter includes problems that reinforce main themes, making it valuable to students, teachers and researchers working in organic, biological and medicinal chemistry, as well as biologists, pharmacologists, polymer chemists and chemists. - Presents a holistic and unified approach to stereochemical understanding and predictions, covering reactions of all mechanistic classes - Includes two background chapters on perturbation theory and stereoselective principles, along with asymmetric designs - Features novel rules and mnemonics to delineate product stereochemistry - Includes up-to-date coverage with over 1300 selective references

Download or read book Asymmetric Synthesis in Organophosphorus Chemistry written by Oleg I. Kolodiazhnyi and published by John Wiley & Sons. This book was released on 2016-12-19 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: Authored by one of the leading experts in the field, this is the only comprehensive overview of chiral organophosphorus compounds, from asymmetric synthesis to catalysis and pharmacological applications. As such, this unique reference covers the chemical background as well as spectroscopical analysis of phosphorus compounds, and thoroughly describes all the various synthetic strategies for these substances. Metal-, organo- and biocatalyzed reactions for the introduction of phosphorus are explained as are asymmetric oxidation and reduction methods for the preparation of all possible oxidation states of phosphorus. The text also includes industrial applications for these compounds. Of particular interest to chemists working in the field of asymmetric synthesis, as well as to the pharmaceutical industry due to the increasing number of phosphorous-containing drugs.

Download or read book C H Activation for Asymmetric Synthesis written by Françoise Colobert and published by John Wiley & Sons. This book was released on 2019-11-12 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides, in one handbook, comprehensive coverage of one of the hottest topics in stereoselective chemistry Written by leading international authors in the field, this book introduces readers to C-H activation in asymmetric synthesis along with all of its facets. It presents stereoselective C-H functionalization with a broad coverage, from outer-sphere to inner-sphere C-H bond activation, and from the control of olefin geometry to the induction of point, planar and axial chirality. Moreover, methods wherein asymmetry is introduced either during the C-H activation or in a different elementary step are discussed. Presented in two parts?asymmetric activation of C(sp3)-H bonds and stereoselective synthesis implying activation of C(sp2)-H bonds?CH-Activation for Asymmetric Synthesis showcases the diversity of stereogenic elements, which can now be constructed by C-H activation methods. Chapters in Part 1 cover: C(sp3)-H bond insertion by metal carbenoids and nitrenoids; stereoselective C-C bond and C-N bond forming reactions through C(sp3)?H bond insertion of metal nitrenoids; enantioselective intra- and intermolecular couplings; and more. Part 2 looks at: C-H activation involved in stereodiscriminant step; planar chirality; diastereoselective formation of alkenes through C(sp2)?H bond activation; amongst other methods. -Covers one of the most rapidly developing fields in organic synthesis and catalysis -Clearly structured in two parts (activation of sp3- and activation of sp2-H bonds) -Edited by two leading experts in C-H activation in asymmetric synthesis CH-Activation for Asymmetric Synthesis will be of high interest to chemists in academia, as well as those in the pharmaceutical and agrochemical industry.

Download or read book Recent Advances in Applications of Name Reactions in Multicomponent Reactions written by Majid M. Heravi and published by Elsevier. This book was released on 2020-05-29 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent Advances in Applications of Name Reactions in Multicomponent Reactions is an ideal reference for researchers and postgraduate students studying organic chemistry, as well as synthetic organic chemists working on the development of novel methodologies for the synthesis of various heterocyclic systems, especially drug design and discovery, in both academia and industry. The book reviews recent applications of name reactions in multicomponents for the synthesis of heterocycles and examines recent advances in applications of significant name reactions, such as Ugi and Passirini, Click, Knoevenagel, Michael, Diels-Alder, Aldol, Mannich, Heck, Huisgen, and Suzuki in MCRs. These reactions can be used in the synthesis of a wide variety of novel heterocycles with different sizes and heteroatoms, as well as in the total synthesis of natural products in order to decrease the number of synthetic steps. Since chiral inductions are necessary for most of these sequential name reactions, their asymmetric catalyzed reactions are also described. - Includes the synthesis of many heterocycles, which is ideal for synthetic organic chemists engaged in the synthesis of heterocyclic systems - Covers the recent advances of asymmetric synthesis of a wide range of heterocycles in satisfactory enantioselectivities (ees) or distereoselectivities (des) - Reviews the synthesis of a wide variety of interesting heterocycles by using a combination of different and versatile name reactions via MCRs

Download or read book Handbook of Chiral Chemicals written by David Ager and published by CRC Press. This book was released on 2005-10-21 with total page 632 pages. Available in PDF, EPUB and Kindle. Book excerpt: As pharmaceutical companies look to develop single enantiomers as drug candidates, chemists are increasingly faced with the problems associated with this subclass of organic synthesis. "The Handbook of Chiral Chemicals, Second Edition" highlights the problems associated with the production of chiral compounds on a commercial scale. The handbook fir

Download or read book Key Chiral Auxiliary Applications written by Gregory Roos and published by Academic Press. This book was released on 2014-01-20 with total page 1271 pages. Available in PDF, EPUB and Kindle. Book excerpt: Key Chiral Auxiliary Applications, Second Edition is a detailed compilation of chiral auxiliary applications organized by type of transformation. Continuing from the most important and relevant auxiliaries described in its predecessor, the three-volume set Compendium of Chiral Auxiliary Applications (2001), as well as advances in the field, the book provides a vital and timely resource for chemists in the field. Each reaction class includes a series of tables and graphical abstracts of real reactions from the literature and patents to enable easy review and comparison of results. This anticipated edition is based on a screening of nearly 40,000 auxiliary reaction applications, with details supplied for the more than 13,000 selected representative entries: synthetic route, reagents, yields, diastereomeric/enantiomeric excesses, and characterization data. Updated and streamlined with more than 60% new material, Key Chiral Auxiliary Applications provides valuable guidance and reliable content for selecting the best auxiliary for a specific asymmetric synthetic transformation. - Provides a comprehensive compilation based on nearly 40,000 diverse applications of chiral auxiliaries for selecting the best synthetic route to optically pure compounds - Contains over 60% new material with 13,000+ auxiliary applications categorized by reaction type, with reaction details and chemical and optical yields in one unique resource

Download or read book Catalytic Asymmetric Synthesis written by Takahiko Akiyama and published by John Wiley & Sons. This book was released on 2022-05-27 with total page 798 pages. Available in PDF, EPUB and Kindle. Book excerpt: Catalytic Asymmetric Synthesis Seminal text presenting detailed accounts of the most important catalytic asymmetric reactions known today This book covers the preparation of enantiomerically pure or enriched chemical compounds by use of chiral catalyst molecules. While reviewing the most important catalytic methods for asymmetric organic synthesis, this book highlights the most important and recent developments in catalytic asymmetric synthesis. Edited by two well-qualified experts, sample topics covered in the work include: Metal catalysis, organocatalysis, photoredox catalysis, enzyme catalysis C–H bond functionalization reactions Carbon–carbon bond formation reactions, carbon–halogen bond formation reactions, hydrogenations, polymerizations, flow reactions Axially chiral compounds Retaining the best of its predecessors but now thoroughly up to date with the important and recent developments in catalytic asymmetric synthesis, the 4th edition of Catalytic Asymmetric Synthesis serves as an excellent desktop reference and text for researchers and students, from upper-level undergraduates all the way to experienced professionals in industry or academia.

Download or read book Organosulfur Chemistry in Asymmetric Synthesis written by Takeshi Toru and published by John Wiley & Sons. This book was released on 2008-09-08 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this first book to gather the information on this hot topic otherwise widely spread throughout the literature, experienced editors and top international authors cover everything the reader needs -- from the synthesis of chiral organosulfur compounds to applications and catalysis: * Asymmetric synthesis of chiral sulfinates and sulfoxides * Synthesis and use of chiral dithioacetal derivatives, ylids, chiral sulfoximines and sulfinamides * Use of chiral sulfoxides as ligands in catalysis * Asymmetric reactions of alpha-sulfenyl, alpha-sulfinyl and alpha-sulfonyl carbanions. As a result, readers will be able to improve their own performance in asymmetric synthesis.