Rational Design Of New Chiral Ligands For Transition Metal Catalyzed Asymmetric Synthesis
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Rational Design Of New Chiral Ligands For Transition Metal Catalyzed Asymmetric Synthesis
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Author : David John O'Neill
language : en
Publisher:
Release Date : 1999
Rational Design Of New Chiral Ligands For Transition Metal Catalyzed Asymmetric Synthesis written by David John O'Neill and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with categories.
Chiral Phosphorous Based Ligands In Earth Abundant Transition Metal Catalysis
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Author : Junliang Zhang
language : en
Publisher: Elsevier
Release Date : 2023-05-27
Chiral Phosphorous Based Ligands In Earth Abundant Transition Metal Catalysis written by Junliang Zhang and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-05-27 with Science categories.
Chiral Phosphorous Based Ligands in Earth-Abundant Transition Metal Catalysis summarizes the most significant progress in the field of chiral phosphine ligand chemistry and a broad range of earth-abundant transition metal/chiral phosphine ligand-catalyzed enantioselective transformations. The book provides an authoritative and in-depth understanding of important topics about asymmetric catalysis based on earth-abundant transition metals/chiral phosphine ligands, making it ideal for organic chemistry researchers working in the field of asymmetric catalysis, synthetic methodologies and total synthesis.The development of new chiral phosphine ligands to achieve precise stereo control in many earth-abundant transition metal-catalyzed reactions is a very important field in organic synthesis, materials science and medicinal chemistry. The asymmetric synthesis promoted by transition metal/chiral phosphine ligands provides one of the most ideal ways to produce valuable optically active chemicals. Includes a discussion of state-of-the-art asymmetric organic reactions mediated by earth-abundant transition metals and chiral phosphine ligands Features the progress and the prospect of chiral phosphine ligands in asymmetric transition metal catalysis Covers the asymmetric reactivity modes of earth-abundant transition metals and phosphine ligands
Chiral Ligands
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Author : Montserrat Diéguez
language : en
Publisher: CRC Press
Release Date : 2021-05-13
Chiral Ligands written by Montserrat Diéguez and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-05-13 with Science categories.
Many new drugs on the market are chiral compounds, that is, they can exist in two non-superimposable mirror-image forms. Asymmetric catalysis encompasses a large variety of processes for obtaining such compounds. The performance of the catalyst in those processes largely depends on the ligand that makes up the catalyst. This book describes the most relevant ligand libraries for some key processes, including an overview of the state of art and the key mechanistic aspects that favor a high catalytic performance. Key Features: The book presents historical content from the time of discovery for each family of ligands. Provides a description of the synthetic route and the ligand library's application in various catalytic asymmetric reactions Suitable as supplementary reading for courses targeting the design, synthesis and application of chiral catalysts, asymmetric catalysis and sustainable production Edited by a distinguished scientist in the field, the book has a diverse audience including research groups in homogeneous catalysis, particularly asymmetric transformations
Synthesis And Application Of New Chiral Ligands For Enantioselectivity Tuning In Transition Metal Catalysis
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Author : Fanji Kong
language : en
Publisher:
Release Date : 2017
Synthesis And Application Of New Chiral Ligands For Enantioselectivity Tuning In Transition Metal Catalysis written by Fanji Kong and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017 with Chirality categories.
A set of five new C3-symmetric phosphites were synthesized and tested in palladium-catalyzed asymmetric Suzuki coupling. The observed reactivity and selectivity were dependent upon several factors. One of the phosphites was able to achieve some of the highest levels of enantioselectivity in asymmetric Suzuki couplings with specific substrates. Different hypotheses have been made for understanding the ligand effects and reaction selectivities, and those hypotheses were tested via various methods including DOSY NMR experiments, X-ray crystallography, and correlation of catalyst selectivity with Tolman cone angles. Although only modest enantioselectivities were observed in most reactions, the ability to synthesis these phosphites in only three steps on gram scales and to readily tune their properties by simple modification of the binaphthyl 2́-substituents makes them promising candidates for determining structure-selectivity relationships in asymmetric transition metal catalysis, in which phosphites have been previously shown to be successful. A series of novel chiral oxazoline-based carbodicarbene ligands was targeted for synthesis. Unfortunately, the chosen synthetic route could not be completed due to unwanted reactivity of the oxazoline ring. However, a new and efficient route for Pd-catalyzed direct amination of aryl halides with oxazoline amine was developed and optimized during these studies. Chiral binaphthyl based Pd(II) ADC complexes with different substituent groups have been synthesized and tested in asymmetric Suzuki coupling reactions. Although only low enantioselectivities were observed in Suzuki coupling, this represents a new class of chiral metal-ADC catalysts that could be tested in further catalytic.
Development Of New Chiral Chelating Ferrocenyl Ligands For Transition Metal Catalyzed Asymmetric Carbon Carbon Bond Formations
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Author : Hong-yee Cheung
language : en
Publisher:
Release Date : 2008
Development Of New Chiral Chelating Ferrocenyl Ligands For Transition Metal Catalyzed Asymmetric Carbon Carbon Bond Formations written by Hong-yee Cheung and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with Organic compounds categories.
Ligand Design In Metal Chemistry
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Author : Mark Stradiotto
language : en
Publisher: John Wiley & Sons
Release Date : 2016-10-17
Ligand Design In Metal Chemistry written by Mark Stradiotto and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-10-17 with Science categories.
The design of ancillary ligands used to modify the structural and reactivity properties of metal complexes has evolved into a rapidly expanding sub-discipline in inorganic and organometallic chemistry. Ancillary ligand design has figured directly in the discovery of new bonding motifs and stoichiometric reactivity, as well as in the development of new catalytic protocols that have had widespread positive impact on chemical synthesis on benchtop and industrial scales. Ligand Design in Metal Chemistry presents a collection of cutting-edge contributions from leaders in the field of ligand design, encompassing a broad spectrum of ancillary ligand classes and reactivity applications. Topics covered include: Key concepts in ligand design Redox non-innocent ligands Ligands for selective alkene metathesis Ligands in cross-coupling Ligand design in polymerization Ligand design in modern lanthanide chemistry Cooperative metal-ligand reactivity P,N Ligands for enantioselective hydrogenation Spiro-cyclic ligands in asymmetric catalysis This book will be a valuable reference for academic researchers and industry practitioners working in the field of ligand design, as well as those who work in the many areas in which the impact of ancillary ligand design has proven significant, for example synthetic organic chemistry, catalysis, medicinal chemistry, polymer science and materials chemistry.
Enantioselective C C Bond Forming Reactions
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Author :
language : en
Publisher: Elsevier
Release Date : 2023-12-01
Enantioselective C C Bond Forming Reactions written by and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-12-01 with Science categories.
Enantioselective C-C Bond Forming Reactions: From Metal Complex-, Organo-, and Bio-catalyzed Perspectives, Volume 73 in the Advances in Catalysis series, highlights new advances in the field, with this new volume presenting interesting chapters on topics such as An introduction to Chirality, Metal-catalyzed stereoselective C-C-bond forming reactions, Enantioselective C-C bond forming reactions promoted by organocatalysts based on unnatural amino acid derivatives, Enantioselective C-C bond formation in complex multicatalytic system, Gold-based multicatalytic systems for enantioselective C-C Bond forming reactions, Novel enzymatic tools for C-C bond formation through the development of new-to-nature biocatalysis, and more. Provides the authority and expertise of leading contributors from an international board of authors Presents the latest release in Advances in Catalysis serials Updated release includes the latest information in the field
Chiral Auxiliaries And Ligands In Asymmetric Synthesis
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Author : J. Seyden-Penne
language : en
Publisher: Wiley-Interscience
Release Date : 1995-10-23
Chiral Auxiliaries And Ligands In Asymmetric Synthesis written by J. Seyden-Penne and has been published by Wiley-Interscience this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995-10-23 with Science categories.
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.
Design And Synthesis Of Chiral Ligands And Their Applications In Transition Metal Catalyzed Asymmetric Reactions
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Author : Wei Li
language : en
Publisher:
Release Date : 2012
Design And Synthesis Of Chiral Ligands And Their Applications In Transition Metal Catalyzed Asymmetric Reactions written by Wei Li and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with categories.
Chiral Ferrocenes In Asymmetric Catalysis
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Author : Li-Xin Dai
language : en
Publisher: John Wiley & Sons
Release Date : 2010-02-01
Chiral Ferrocenes In Asymmetric Catalysis written by Li-Xin Dai and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-02-01 with Science categories.
This book meets the long-felt need for a reference on ferrocenes with the focus on catalysis. It provides a thorough overview of the synthesis and characterization of different types of chiral ferrocene ligands, their application to various catalytic asymmetric reactions, and versatile chiral materials as well as drug intermediates synthesized from them. Written by the "who's who" of ferrocene catalysis, this is a guide to the design of new ferrocene ligands and synthesis of chiral synthetic intermediates, and will thus be useful for organic, catalytic and synthetic chemists working in academia, industrial research or process development.