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Key Chiral Auxiliary Applications

Key Chiral Auxiliary Applications
  • Author : Gregory Roos
  • Publisher :Unknown
  • Release Date :2014-01-20
  • Total pages :1270
  • ISBN : 9780124171152
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Summary : 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

Journal of Research of the National Institute of Standards and Technology

Journal of Research of the National Institute of Standards and Technology
  • Author : Anonim
  • Publisher :Unknown
  • Release Date :1991
  • Total pages :229
  • ISBN : PSU:000045097959
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Summary :

Real Science in Clear English

Real Science in Clear English
  • Author : Cathryn Roos,Gregory Roos
  • Publisher :Unknown
  • Release Date :2019-08-07
  • Total pages :127
  • ISBN : 9789811378201
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Summary : 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.

Advances in Heterocyclic Chemistry

Advances in Heterocyclic Chemistry
  • Author : Anonim
  • Publisher :Unknown
  • Release Date :2017-03-19
  • Total pages :334
  • ISBN : 9780128119938
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Summary : Advances in Heterocyclic Chemistry is the definitive series in the field—one of great importance to organic chemists, polymer chemists, and many biological scientists. Because biology and organic chemistry increasingly intersect, the associated nomenclature is being used more frequently in explanations. Written by established authorities in the field from around the world, this comprehensive review combines descriptive synthetic chemistry and mechanistic insight to yield an understanding of how chemistry drives the preparation and useful properties of heterocyclic compounds. Serves as the go-to reference for organic chemists, polymer chemists, and many biological scientists Provides the latest comprehensive reviews written by established authorities in the field Combines descriptive synthetic chemistry and mechanistic insight to show how chemistry drives the preparation and useful properties of heterocyclic compounds

Advanced Asymmetric Synthesis

Advanced Asymmetric Synthesis
  • Author : G.R. Stephenson
  • Publisher :Unknown
  • Release Date :2012-12-06
  • Total pages :426
  • ISBN : 9789400707979
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Summary : 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.

Light Metals: Advances in Research and Application: 2011 Edition

Light Metals: Advances in Research and Application: 2011 Edition
  • Author : Anonim
  • Publisher :Unknown
  • Release Date :2012-01-09
  • Total pages :950
  • ISBN : 9781464920837
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Summary : Light Metals: Advances in Research and Application: 2011 Edition is a ScholarlyEditions™ eBook that delivers timely, authoritative, and comprehensive information about Light Metals. The editors have built Light Metals: Advances in Research and Application: 2011 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about Light Metals in this eBook to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Light Metals: Advances in Research and Application: 2011 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.

Dissertation Abstracts International

Dissertation Abstracts International
  • Author : Anonim
  • Publisher :Unknown
  • Release Date :2006
  • Total pages :229
  • ISBN : STANFORD:36105121673201
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Summary :

Chiral Reagents for Asymmetric Synthesis

Chiral Reagents for Asymmetric Synthesis
  • Author : Leo A. Paquette
  • Publisher :Unknown
  • Release Date :2003-08-01
  • Total pages :582
  • ISBN : 0470856254
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Summary : 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

Chiral Auxiliaries in Cycloadditions

Chiral Auxiliaries in Cycloadditions
  • Author : Karola Rück-Braun,Horst Kunz
  • Publisher :Unknown
  • Release Date :2008-09-26
  • Total pages :186
  • ISBN : 9783527614011
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Summary : 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.

Principles of Asymmetric Synthesis

Principles of Asymmetric Synthesis
  • Author : R.E. Gawley,J. Aubé
  • Publisher :Unknown
  • Release Date :1996-11-21
  • Total pages :394
  • ISBN : 0080514774
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Summary : 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

Chiral Auxiliaries and Ligands in Asymmetric Synthesis
  • Author : Jacqueline Seyden-Penne
  • Publisher :Unknown
  • Release Date :1995-10-23
  • Total pages :716
  • ISBN : UOM:39015034927643
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Summary : 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.

Utilizing Sulfoximines as Both Chiral Auxiliary and Leaving Group in the Cyclized Formation of Optically Active Tertiary Carbon Centers

Utilizing Sulfoximines as Both Chiral Auxiliary and Leaving Group in the Cyclized Formation of Optically Active Tertiary Carbon Centers
  • Author : Richard Tadao Matsuoka
  • Publisher :Unknown
  • Release Date :1991
  • Total pages :948
  • ISBN : STANFORD:36105003370397
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Summary :

Materials Science and Applied Chemistry II

Materials Science and Applied Chemistry II
  • Author : M?ris Turks
  • Publisher :Unknown
  • Release Date :2019-04-30
  • Total pages :360
  • ISBN : 9783035734072
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Summary : This volume contains the papers presented at the 59th International Scientific Conference of Riga Technical University (RTU), Section of Materials Science and Applied Chemistry - MSAC 2018, held in Riga, Latvia, 26th of October 2018. We hope this collection will be interesting and useful for many chemical engineers from various branches of modern production.

Recent Advances in Applications of Name Reactions in Multicomponent Reactions

Recent Advances in Applications of Name Reactions in Multicomponent Reactions
  • Author : Majid M. Heravi,Vahideh Zadsirjan
  • Publisher :Unknown
  • Release Date :2020-05-29
  • Total pages :438
  • ISBN : 9780128196953
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Summary : 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

Synthesis and Applications of Isotopically Labelled Compounds

Synthesis and Applications of Isotopically Labelled Compounds
  • Author : Ulrich Pleiss,R. Voges
  • Publisher :Unknown
  • Release Date :2001-03-28
  • Total pages :728
  • ISBN : 0471495018
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Summary : This outstanding book covers the most recent advances in the production of stable and radioactive isotopes as well as in the synthesis, analysis and applications of isotopically labelled compounds. Written by internationally renowned contributors, it provides authoritative and wide-ranging coverage of significant growth areas including: * new methodologies in the production of isotopes * novel approaches to compounds labelled with isotopes of hydrogen, carbon and other stable, long-lived and short-lived radioactive isotopes * advances in the analysis of istopically labelled compounds * recent and future applications of isotopes in pharmaceutical research and development, in pharmacological and clinical sutdies and nuclear medicine, as well as in agricultural, nutritional and environmental research * recent applications of isotopes in investigating organic and bioorganic mechanisms and pathways * safety and regulations of handling isotopes This will be an invaluable information and reference source to anyone involved in the production of isotopes, the synthesis and analysis of compounds labelled with stable, long-lived or short-lived radioactive isotopes, in drug research and development, in clinical investigations and nuclear medicine, in agricultural research and development and environmental investigations, in the elucidation of biological and chemical pathways, handling radioisotopes, laboratory design and other areas.

Palladium and Ruthenium Catalysis, Applications Towards Natural Product Synthesis

Palladium and Ruthenium Catalysis, Applications Towards Natural Product Synthesis
  • Author : Daniel Brian Horne
  • Publisher :Unknown
  • Release Date :2004
  • Total pages :910
  • ISBN : STANFORD:36105023559383
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Summary :

Canadian Journal of Chemistry

Canadian Journal of Chemistry
  • Author : Anonim
  • Publisher :Unknown
  • Release Date :2009
  • Total pages :229
  • ISBN : UCBK:C077433113
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Summary :

Palladium-catalyzed Alkylative Enyne Cyclizations and Their Application to the Synthesis of Vitamin D Analogs

Palladium-catalyzed Alkylative Enyne Cyclizations and Their Application to the Synthesis of Vitamin D Analogs
  • Author : John B. Chan
  • Publisher :Unknown
  • Release Date :1997
  • Total pages :560
  • ISBN : STANFORD:36105019781207
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Summary :

Synthetic Application of Birch Reduction-alkylation Methodology

Synthetic Application of Birch Reduction-alkylation Methodology
  • Author : Xuqing Zhang
  • Publisher :Unknown
  • Release Date :2000
  • Total pages :354
  • ISBN : UCSD:31822032116196
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Summary :

Principles and Applications of Asymmetric Synthesis

Principles and Applications of Asymmetric Synthesis
  • Author : Guo-Qiang Lin,Yue-Ming Li,Albert S. C. Chan
  • Publisher :Unknown
  • Release Date :2003-05-29
  • Total pages :536
  • ISBN : 9780471465249
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Summary : 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.

Monoorgano- and Monosilylcuprate Reagents and Their Application Towards the Total Synthesis of Virginiamycin M̳1

Monoorgano- and Monosilylcuprate Reagents and Their Application Towards the Total Synthesis of Virginiamycin M̳1
  • Author : Jesse Dean Dambacher
  • Publisher :Unknown
  • Release Date :2004
  • Total pages :576
  • ISBN : UCSD:31822009443508
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Summary :