key chiral auxiliary applications

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Key Chiral Auxiliary Applications
Author : Gregory Roos
Publisher : Academic Press
Release Date : 2014-01-20
ISBN 10 : 012417115X
Pages : 1270 pages

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

Real Science in Clear English
Author : Cathryn Roos,Gregory Roos
Publisher : Springer
Release Date : 2019-08-07
ISBN 10 : 9811378207
Pages : 127 pages

This book is a timely go-to resource for any professionals wishing to communicate with the growing number of readers whose first language is not English. It highlights the potential language difficulties these readers face, and provides guidelines and tools for overcoming them. The guidelines show how to convey complicated information clearly without affecting the integrity of the subject matter, while the practical ‘before’ and ‘after’ examples clearly illustrate how using these guidelines and improves scientific texts. The book also includes text evaluation tools that allow writers to rapidly assess the readability of their materials. It is based on theory and the authors’ extensive experience in producing highly readable English texts for L2 readers who struggle with materials that were originally prepared for L1 readers.

Advanced Asymmetric Synthesis
Author : G.R. Stephenson
Publisher : Springer Science & Business Media
Release Date : 2012-12-06
ISBN 10 : 9400707975
Pages : 426 pages

Asymmetric synthesis is one of the most critical strategic subjects in organic chemistry, and this book describes advanced techniques and their applications to the industrial and laboratory synthesis of important chiral molecules. The international team of highly respected authors provide rigorous and concise reviews of their areas of expertise.

Compendium of Chiral Auxiliary Applications
Author : Gregory Roos
Publisher : N.A
Release Date : 2002
ISBN 10 : 9780125953429
Pages : 1423 pages

Principles and Applications of Asymmetric Synthesis
Author : Guo-Qiang Lin,Yue-Ming Li,Albert S. C. Chan
Publisher : John Wiley & Sons
Release Date : 2003-05-29
ISBN 10 : 0471465240
Pages : 536 pages

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.

Dissertation Abstracts International
Author : N.A
Publisher : N.A
Release Date : 2008
ISBN 10 :
Pages : 329 pages

Chiral Auxiliaries in Cycloadditions
Author : Karola Rück-Braun,Horst Kunz
Publisher : John Wiley & Sons
Release Date : 2008-09-26
ISBN 10 : 352761401X
Pages : 186 pages

Since the days of Diels, Alder and Woodward, cycloadditions have been among the most versatile reactions for stereoselective synthesis ... All relevant information is collected in this well-structured, practical handbook. Arranged according to the cycloaddition type, the suitable auxiliaries, reactants, stereoselectivities, yields, and references for each key reaction are compiled in compact tables. Scientists interested in the theoretical background of stereoselective cycloadditions will find an excellent selection of in-depth literature references. ... with this comprehensive data collection cycloadditions will become an even more powerful tool for every organic chemist working on stereoselective synthesis.

Chiral Reagents for Asymmetric Synthesis
Author : Leo A. Paquette
Publisher : Wiley
Release Date : 2003-08-01
ISBN 10 : 9780470856253
Pages : 582 pages

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:

Recent Advances in Applications of Name Reactions in Multicomponent Reactions
Author : Majid M. Heravi,Vahideh Zadsirjan
Publisher : Elsevier
Release Date : 2020-05-29
ISBN 10 : 0128196955
Pages : 438 pages

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

Principles of Asymmetric Synthesis
Author : R.E. Gawley,J. Aubé
Publisher : Elsevier
Release Date : 1996-11-21
ISBN 10 : 9780080514772
Pages : 394 pages

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.

Chiral Auxiliaries and Ligands in Asymmetric Synthesis
Author : Jacqueline Seyden-Penne
Publisher : Wiley-Interscience
Release Date : 1995-10-23
ISBN 10 :
Pages : 716 pages

Table of Contents Preface Abbreviations Introduction 1 1 Enantiomerically Pure Chiral Auxiliaries 43 2 Chiral Reagents 87 3 Chiral Catalysis and Catalysts Bearing Chiral Ligands 117 4 Asymmetric Deprotonations and Protonations 143 5 Alkylations and Related Reactions 157 6 Additions to C=O and C=N Double Bonds 209 7 Additions to Carbon-Carbon Double Bonds 367 8 Additions to Double Bonds Bearing Heteroatoms. Oxidations of Sulfides and Selenides 503 9 Cycloadditions 513 10 Sigmatropic Rearrangements 593 11 Transition Metal Catalyzed Reactions 619 References 637 Index 707.

Author : Frederick A. Luzzio
Publisher : Elsevier
Release Date : 2019-05-17
ISBN 10 : 0128156767
Pages : 468 pages

Imides: Medicinal, Agricultural, Synthetic Applications and Natural Products Chemistry provides a comprehensive overview of imides being developed as pharmaceuticals or experimental therapeutics. Featuring a diverse range of experts in the field of imides, each chapter reviews the state-of-the-art, including the isolation and identification of naturally-occurring imides, as well as the total synthesis of imide natural products. As there is a need for a comprehensive review of imides as a class of naturally-occurring, biologically active molecules, this book will be invaluable to those in pharmaceuticals, academia, and anyone looking for clinical applications. Features cutting-edge research in the field of imides for pharmaceutical and experimental therapeutic applications Includes coverage of naturally occurring imides, along with medicinal chemistry-inspired imides Focuses on the presentation of selected targets for their complex multistep synthesis Discusses new reagents and strategies for synthesis Includes contributions from leading experts in the field of imide research, working in both natural product chemistry and medicinal chemistry