I. Stereoselective Construction of Polycyclic Architectures: Enantioselective Catalytic Transannular Ketone-Ene Reactions and an Enantioselective Total Synthesis of (+)-Reserpine II. Synthesis of Chiral Bisthioureas for Anion-Abstraction Catalysis PDF Download
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Author: Naomi Samadara Rajapaksa
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
The research presented herein explores three aspects of asymmetric catalysis: (1) the development of new catalytic enantioselective reactions, (2) the application of stereoselective catalysis to natural product total synthesis, and (3) the design and synthesis of new chiral catalysts.
Author: Naomi Samadara Rajapaksa
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
The research presented herein explores three aspects of asymmetric catalysis: (1) the development of new catalytic enantioselective reactions, (2) the application of stereoselective catalysis to natural product total synthesis, and (3) the design and synthesis of new chiral catalysts.
Author: Elias J. Corey
Publisher: Elsevier
ISBN: 0128001518
Category : Science
Languages : en
Pages : 334
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Book Description
Written by world-renowned and best-selling experts, Nobel Laureate E. J. Corey and Laszlo Kurti, Enantioselective Chemical Synthesis offers an authoritative and comprehensive overview of the field's progress; the processes and tools for key formations; future development for complex, stereocontrolled (enantiomeric or diastereoisomeric) molecules; and valuable examples of multi-step syntheses. Utilizing a color-coded scheme to illustrate chemical transformations, Enantioselective Chemical Synthesis provides clear explanation and guidance through vital asymmetrical syntheses and insight into the next steps for the field. Researchers, professionals, and academics will benefit from this valuable, thorough, and unique resource. - In Part I, the authors present clearly, comprehensively and concisely the most useful enantioselective processes available to synthetic chemists. - Part II provides an extensive discussion of the most logical ways to apply these new enantioselective methods to the planning of syntheses of stereochemically complex molecules. This hitherto neglected area is essential for the advancement of enantioselective synthesis to a more rational and powerful level. - Part III describes in detail many reaction sequences which have been used successfully for the construction of a wide variety of complex target molecules - Clearly explains stereochemical synthesis in theory and practice - Provides a handy tool box for scientists wishing to understand and apply chiral chemical synthesis - Describes almost 50 real life examples of asymmetric synthesis in practice and examines how the chiral centers were introduced at key synthetic stages
Author: Ilya D. Gridnev
Publisher: CRC Press
ISBN: 1315353342
Category : Science
Languages : en
Pages : 274
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Book Description
The field of asymmetric catalysis is currently one of the hottest areas in chemistry. This unique book focuses on the mechanism of enantioselectivity in asymmetric catalysis, rather than asymmetric catalysis from the synthetic view. It describes reliable, experimentally and computationally supported mechanisms, and discusses the danger of so-called "plausible" or "accepted" mechanisms leading to wrong conclusions. It draws parallels to enzymatic catalysis in biochemistry, and examines in detail the physico-chemical aspects of enantioselective catalysis.
Author: Peter I. Dalko
Publisher: John Wiley & Sons
ISBN: 3527658882
Category : Science
Languages : en
Pages : 1499
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Book Description
Structured in three parts this manual recollects efficient organocatalytic transformations around clear principles that meet actual standard in asymmetric synthesis. Chapters were written by acknowledged leaders of the organocatalysis field, and are presented in a concise way. Volume 1: Privileged Catalysts gives insight to readers to the continuously increasing variety of catalysts, and the relatively complex interactions that make organocatalytic reactions selective. An appendix recollects catalyst structures with the adequate cross-references. Volume 2: Activations covers the fundamental activation types (non-covalent and covalent activations) and helps understanding the importance of physical parameters, and in particular, the role of water, that influences reactivity and selectivity. Volume 3: Reactions and Applications highlights transformations by reaction types. The final part of this volume is dedicated to application in multistep synthesis and industrial applications. Considering the ever increasing interest in the organocatalysis field, the book aims addressing to a large audience: to academic, and, industrial researchers, students and teachers who are interested in synthetic organic chemistry at advanced level. This book provides non-specialists with an introduction to the topic as well as serving as a valuable source for newcomers and researchers searching for an up-to-date and comprehensive overview of this promising area of synthetic organic chemistry.
Author: Dolores Badia
Publisher: Royal Society of Chemistry
ISBN: 1849730245
Category : Science
Languages : en
Pages : 365
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Book Description
This book, unique in its field, is a comprehensive description of all the methodologies reported for carrying out conjugate addition reactions in a stereoselective way, using small chiral organic molecules as catalysts (organocatalysts). In the last 3-4 years, this has been a rapidly growing field in organic chemistry, and many papers have appeared reporting excellent protocols for carrying out these highly efficient transformations that compete well with other classical approachse using transition metal catalysts. A particularly attractive feature of this transformation relies upon the fact that the conjugate addition (Michael and Hetero-Michael reactions) is an extraoridinarily effective means to initiate cascade processes which result in the formation of complex molecules from very small and simple starting blocks. The book, written by noted experts, covers all recent advances in this not topic, and provides a good state-of-the-art review for organic chemists working in this field and all those who wish to start projects in this area. The Series is intended to provide an accessible reference for postgraduates and industrialists working in the field of catalysis and its applications. Books will be produced either as monographs or reference handbooks. The Series will cover research developments and applications of catalysis, in both academia and industry.
Author: P. Andrew Evans
Publisher: Thieme
ISBN: 3131789719
Category : Science
Languages : en
Pages : 1744
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Book Description
The major emphasis here is on enantioselective reactions using asymmetric catalysts. Examples from the total synthesis of various natural and unnatural targets validates the utility of the synthetic methods. Specific topics discussed: cycloaddition, cycloisomerization and sigmatropic rearrangement reactions, allylic and carbonyl functionalization reactions, metal-catalyzed cross-coupling reactions, desymmetrization, fluorination, polymerization and sulfide oxidation reactions. This volume is part of a 3-volume set: Science of Synthesis Stereoselective Synthesis Workbench Edition Further information about Stereoselective Synthesis (including sample pages and the table of contents)
Author: Mihály Nógrádi
Publisher: John Wiley & Sons
ISBN: 3527292438
Category : Science
Languages : en
Pages : 407
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Book Description
The state-of-the-art in stereoselective synthesis! Thoroughly revised and updated, this enlarged second edition offers a plethora of valuable information on methods and reagents in stereoselective synthesis. Methods have been selected for high efficiency and selectivity; mechanistic aspects are treated succinctly, with a strong emphasis on practical applications. For this new edition, material has been added on * homogeneous diastereoselective hydrogenations * enantioselective oxidations * novel, efficient chiral auxiliaries Much of the information given is presented in figures and tables, which makes the book a valuable reference work for the practically minded organic chemist. From reviews of the first edition: 'The extensive material in the volume should prove particularly useful to anyone involved in synthetic chemistry or teaching a course in organic chemistry.' Journal of Medicinal Chemistry 'With nearly 1400 references cited, the book contains a wealth of information and should be a useful addition to the chemist's library.' The American Scientist
Author: Helene Pellissier
Publisher: Royal Society of Chemistry
ISBN: 1782621350
Category : Science
Languages : en
Pages : 255
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Book Description
Chiral molecules are needed for the production of many pharmaceuticals and materials, and catalytic asymmetric synthesis provides a method for the preparation of such chiral products. For the synthesis of complex molecules, such as natural products and biologically active compounds, more than one catalytic reaction may be necessary and tandem catalysis refers to the combination of catalytic reactions into one synthesis. By combing catalysts it enables a more efficient, economical and selective one pot approach for complex molecule synthesis which could not be achieved through single specific catalytic systems. The challenge is finding the right catalyst which is compatible with other catalysts but also tolerates reagents, solvent and intermediates generated during the course of the reaction. Enantioselective Multicatalysed Tandem Reactions provides an overview of recent developments in the area. The first part of the book covers asymmetric tandem reactions catalysed by multiple catalysts from the same discipline (organocatalysts, two metal and multienzyme-catalysed reactions). The second part looks at tandem reactions catalysed by multiple catalysts from different disciplines including reactions catalysed by a combination of metals and organocatalysts, reactions catalysed by a combination of metals and enzymes, and finally reactions catalysed by a combination of organocatalysts and enzymes. The book will appeal to researchers and professionals in academic and industrial laboratories interested in catalysis, biocatalysis and organic synthesis of chiral compounds.
Author: Iwao Ojima
Publisher: John Wiley & Sons
ISBN: 047122054X
Category : Science
Languages : en
Pages : 879
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Book Description
From the reviews of the First Edition . . . "An excellent text . . . will no doubt provide the benchmark for comparative works for many years."-Journal of the American Chemical Society "A resounding success . . . the definitive current summaries on their respective subjects."-Synthesis Since this important work was first published in 1993, the field of catalytic asymmetric synthesis has grown explosively, spawning effective new methods for obtaining enantiomerically pure compounds on a large scale and stimulating new applications in diverse fields-from medicine to materials science. Catalytic Asymmetric Synthesis, Second Edition addresses these rapid changes through new or substantially revised contributions from highly recognized world leaders in the field. It presents detailed accounts of the most important catalytic asymmetric reactions known today, discusses recent advances, and retains from the previous edition essential and intriguing information on the initial development of certain processes. An excellent working resource for academic researchers and industrial chemists alike, the Second Edition features: * Contributions from Noyori, Sharpless, Kagan, Trost, Overman, Shibasaki, Doyle, Okamoto, Bolm, Carreira, and many other internationally renowned authorities * New chapters on asymmetric carbometallations, asymmetric amplification and autocatalysis, and asymmetric polymerization * Extended coverage of asymmetric carbene reactions, including asymmetric intramolecular carbene insertion to C-H bonds as well as asymmetric dihydroxylation and aminohydroxylation * Extended coverage of asymmetric carbon-carbon bond-forming reactions and applications * An appendix listing all chiral ligands in the book
Author: Erick M. Carreira
Publisher: Wiley-VCH
ISBN: 9783527299669
Category : Science
Languages : en
Pages : 0
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Book Description
This book provides a noteworthy compilation of the groundbreaking methods of stereoselective synthesis, belonging to the repertoire of every modern practitioner of synthetic organic chemistry. The general principles underlying these processes are highlighted as they form the basis for the rapid and continuing developments in the field. The work also features illustrative examples of drug and natural product syntheses, resulting in a rich source of stimulating ideas for the efficient use of asymmetric reactions in the construction of stereochemically complex structures. From the contents: "Macrocyclic stereocontrol "Carbonyl addition reactions "alpha-Functionalization of enolates "Aldol and allylation reactions "Chiral acetals "Alkene hydroboration, reduction, and oxidation "Additions to C=N bonds and synthesis of amino acids "Conjugate additions "Chiral carbanions "Metal-catalyzed allylations "Cyclopropanations and CH-insertion reactions "Sigmatropic rearrangements "Diels-Alder and hetero-Diels-Alder reactions "[3+2]- and [2+2]-cycloaddition reactions
