Axially Chiral Compounds

Axially Chiral Compounds PDF Author: Bin Tan
Publisher: John Wiley & Sons
ISBN: 3527347127
Category : Science
Languages : en
Pages : 338

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Book Description
Axially Chiral Compounds Explore this comprehensive and current volume summarizing the characteristics, synthesis, and applications of axial chirality Appearing widely in natural products, biologically active molecules, asymmetric chemistry, and material science, axially chiral motifs constitute the core backbones of the majority of chiral ligands and organocatalysts in asymmetric catalysis. In a new work of particular relevance to synthetic chemists, Axially Chiral Compounds: Asymmetric Synthesis and Applications delivers a clearly structured and authoritative volume covering the classification, characteristics, synthesis, and applications of axial chirality. A must read for every synthetic chemist practicing today, the book follows the development history, research status, and applications of axial chirality. An introductory chapter familiarizes the reader with foundational material before the distinguished authors describe the different classes and the synthesis of axial chiral compounds used in asymmetric synthesis. The book concludes with a focus on the applications of chiral ligands, chiral catalysts, and materials. Readers will also benefit from the inclusion of: A thorough introduction to asymmetric synthesis, including biaryls atropisomers, heterobiaryls atropisomers, and non-biaryls atropisomers Explorations of chiral allene, spiro skeletons, and natural products Practical discussions of asymmetric transformation, chiral ligands, and chiral catalysts An examination of miscellaneous applications of axially chiral compounds Perfect for organic chemists, chemists working with or on organometallics, catalytic chemists, and materials scientists, Axially Chiral Compounds: Asymmetric Synthesis and Applications will also earn a place in the libraries of natural products chemists who seek a one-stop reference for compounds exhibiting axial chirality.

Axially Chiral Compounds

Axially Chiral Compounds PDF Author: Bin Tan
Publisher: John Wiley & Sons
ISBN: 3527347127
Category : Science
Languages : en
Pages : 338

Get Book Here

Book Description
Axially Chiral Compounds Explore this comprehensive and current volume summarizing the characteristics, synthesis, and applications of axial chirality Appearing widely in natural products, biologically active molecules, asymmetric chemistry, and material science, axially chiral motifs constitute the core backbones of the majority of chiral ligands and organocatalysts in asymmetric catalysis. In a new work of particular relevance to synthetic chemists, Axially Chiral Compounds: Asymmetric Synthesis and Applications delivers a clearly structured and authoritative volume covering the classification, characteristics, synthesis, and applications of axial chirality. A must read for every synthetic chemist practicing today, the book follows the development history, research status, and applications of axial chirality. An introductory chapter familiarizes the reader with foundational material before the distinguished authors describe the different classes and the synthesis of axial chiral compounds used in asymmetric synthesis. The book concludes with a focus on the applications of chiral ligands, chiral catalysts, and materials. Readers will also benefit from the inclusion of: A thorough introduction to asymmetric synthesis, including biaryls atropisomers, heterobiaryls atropisomers, and non-biaryls atropisomers Explorations of chiral allene, spiro skeletons, and natural products Practical discussions of asymmetric transformation, chiral ligands, and chiral catalysts An examination of miscellaneous applications of axially chiral compounds Perfect for organic chemists, chemists working with or on organometallics, catalytic chemists, and materials scientists, Axially Chiral Compounds: Asymmetric Synthesis and Applications will also earn a place in the libraries of natural products chemists who seek a one-stop reference for compounds exhibiting axial chirality.

Atropisomerism And Axial Chirality

Atropisomerism And Axial Chirality PDF Author: Jose M Lassaletta
Publisher: World Scientific
ISBN: 1786346478
Category : Science
Languages : en
Pages : 676

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Book Description
Chapter contribution from Ben Feringa, Nobel Laureate in Chemistry 2016.Atropisomerism and Axial Chirality provides a global survey of the chemistry of axially chiral compounds including biaryls, heterobiaryls, non-biaryl atropisomers, allenes and spyrocyclic derivatives. From the perspective of a synthetic organic chemist, this book provides a unique compilation of the available methodologies for their synthesis, with emphasis on the most efficient and modern strategies, a review of the huge amount of practical applications in the field of asymmetric catalysis, either as transition metal ligands or as organocatalysts, and an overview of their occurrence as bioactive compounds and natural products.The first of its kind, this book serves as a general introduction and a practical reference to advanced chemistry students and researchers, while also offering creative ideas for further developments in the field.

Dynamic Stereochemistry of Chiral Compounds

Dynamic Stereochemistry of Chiral Compounds PDF Author: Christian Wolf
Publisher: Royal Society of Chemistry
ISBN: 0854042466
Category : Education
Languages : en
Pages : 534

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Book Description
A comprehensive overview of fundamental concepts of asymmetric synthesis along with in-depth discussion. Recent developments that address important synthetic challenges are presented and highlighted with hundreds of examples.

Privileged Chiral Ligands and Catalysts

Privileged Chiral Ligands and Catalysts PDF Author: Qi-Lin Zhou
Publisher: John Wiley & Sons
ISBN: 3527635211
Category : Technology & Engineering
Languages : en
Pages : 670

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Book Description
Catalytic asymmetric synthesis has been one of the most active research areas in chemistry (Nobel Prize in 2001). The development of efficient chiral catalysts plays a crucial role in asymmetric catalysis. Although many chiral ligands/catalysts have been developed in the past decades, the most efficient catalysts are derived from a few core structures, called "privileged chiral catalysts". This ultimate "must have" and long awaited reference for every chemist working in the field of asymmetric catalysis starts with the core structure of the catalysts, explaining why a certain ligand or catalyst is so successful. It describes in detail the history, the basic structural characteristics, and the applications of these "privileged catalysts". This novel presentation provides readers with a much deeper insight into the topic and makes it a must-have for organic chemists, catalytic chemists, chemists working with/on organometallics, chemists in industry, and libraries. From the contents: * BINAP * Bisphosphacycles - From DuPhos and BPE to a Diverse Set of Broadly Applied Ligands * Josiphos Ligands: From Discovery to Technical Applications * Chiral Spiro Ligands * Chiral Bisoxazoline Ligands * PHOX Ligands * Chiral Salen Complexes * BINOL * TADDOLate Ligands * Cinchona Alkaloids * Proline Derivatives

Circularly Polarized Luminescence of Isolated Small Organic Molecules

Circularly Polarized Luminescence of Isolated Small Organic Molecules PDF Author: Tadashi Mori
Publisher: Springer Nature
ISBN: 9811523096
Category : Science
Languages : en
Pages : 342

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Book Description
This book collects all the latest advances in the leading research of the circularly polarized luminescence (CPL) of small organic molecules. Compared with that of lanthanide-based fluorophores, the research into the CPL of small organic molecules is still at the developmental stage for their relatively smaller dissymmetric factors, but has been a source of widespread attention recently. The book includes the state of the art of the discoveries in CPL organic molecules, such as helicenes, biaryls, cyclophanes, boron dipyrromethene dyes, and other chiral molecules, mostly in their isolated states, covering all possible chiral substances for future applications. This book also highlights the recent development of CPL instruments as well as time-resolved circular dichroism spectroscopy, to facilitate the further development and future design of CPL molecules.

Fundamentals of Asymmetric Catalysis

Fundamentals of Asymmetric Catalysis PDF Author: Patrick J. Walsh
Publisher: University Science Books
ISBN: 9781891389542
Category : Science
Languages : en
Pages : 692

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Book Description
This work describes the essential aspects of enantioselective catalysis, with chapters organised by concept rather than by reaction type. Each concept is supported by examples to give the reader broad exposure to a wide range of catalysts, reactions and reaction mechanisms.

Organic Stereochemistry

Organic Stereochemistry PDF Author: Hua-Jie Zhu
Publisher: John Wiley & Sons
ISBN: 3527338225
Category : Science
Languages : en
Pages : 336

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Book Description
Adopting a novel approach to the topic by combining theoretical knowledge and practical results, this book presents the most popular and useful computational and experimental methods applied for studying the stereochemistry of chemical reactions and compounds. The text is clearly divided into three sections on fundamentals, spectroscopic and computational techniques, and applications in organic synthesis. The first part provides a brief introduction to the field of chirality and stereochemistry, while the second part covers the different methodologies, such as optical rotation, electronic circular dichroism, vibrational circular dicroism, and Raman spectroscopy. The third section then goes on to describe selective examples in organic synthesis, classified by reaction type, i.e. enantioselective, chemoselective and stereoselective reactions. A final chapter on total synthesis of natural products rounds off the book. A valuable reference for researchers in academia and industry working in the field of organic synthesis, computational chemistry, spectroscopy or medicinal chemistry.

Introduction to Stereochemistry

Introduction to Stereochemistry PDF Author: Andrew Clark
Publisher: Royal Society of Chemistry
ISBN: 1839164131
Category : Science
Languages : en
Pages : 201

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Book Description
CHEMISTRY STUDENT GUIDES. GUIDED BY STUDENTS Why did the drug thalidomide cause birth defects? What is the chemical difference between sucrose and lactose in your food? Stereochemistry holds the answer and is essential to the understanding of the chemistry of life. Stereochemistry is an important concept that often causes confusion amongst students when they learn it for the first time. Unlike most other areas of chemistry, it requires the chemist to visualise molecules in 3D, which can be difficult. In this book we deal with tricky concepts like conformation and configuration, how to represent them accurately and how to use the correct terms to describe them in both organic and inorganic chemistry. We involved students in the writing process to ensure we deal with areas that you find difficult, in an understandable language. With problems designed to focus on common errors and misconceptions, real life examples, and practical hands-on exercises coupled with visualisation tips, our intention is to give you the tools to become confident in stererochemistry. Complementing mainstream organic textbooks, or self-study, this book is for anyone who has struggled with describing alkenes as E or Z, assigning R and S absolute configurations, drawing Newman projections or chair representations of cyclohexanes, axial chirality, understanding the stereochemistry of octahedral metal complexes and indeed explaining complexities observed in NMR spectra. Chemistry Student Guides are written with current students involved at every stage, guiding the books towards the most challenging aspects of the topic. Student co-authors for Introduction to Stereochemistry are Caroline Akamune, Michael Lloyd and Matthew Taylor.

Introduction to Stereochemistry

Introduction to Stereochemistry PDF Author: Torsten Schmiermund
Publisher: Springer Nature
ISBN: 3658320354
Category : Science
Languages : en
Pages : 56

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Book Description
Conformal, diastereomers, rotamers, tautomers, anomers: The multitude of terms used in stereochemistry quickly makes this subfield of chemistry confusing. In addition, there are different nomenclatures and different forms of representation (Fischer projection, Haworth ring formula, Newman projection). This essential deals with basic static stereochemistry and gives an overview of the different isomeric forms and nomenclatures. It is thus both a help and a reference book. This Springer essential is a translation of the original German 1st edition essentials, Einführung in die Stereochemie by Torsten Schmiermund, published by Springer Fachmedien Wiesbaden GmbH, part of Springer Nature in 2019. The translation was done with the help of artificial intelligence (machine translation by the service DeepL.com). A subsequent human revision was done primarily in terms of content, so that the book will read stylistically differently from a conventional translation. Springer Nature works continuously to further the development of tools for the production of books and on the related technologies to support the authors.

Enantiomer Separation

Enantiomer Separation PDF Author: Fumio Toda
Publisher: Springer Science & Business Media
ISBN: 1402023375
Category : Science
Languages : en
Pages : 334

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Book Description
In spite of important advances in asymmetric synthesis, chiral compounds cannot all be obtained in a pure state by asymmetric synthesis. As a result, enantiomer separation remains an important technique for obtaining optically active materials. Although asymmetric synthesis is a once-only procedure, an enantiomer separation process can be repeated until the optically pure sample is obtained. This book discusses several new enantiomer separation methods using modern techniques developed by experts in the field. These methods consist mainly of the following three types: 1) Enantiomer separation by inclusion complexation with a chiral host compound 2) Enantiomer separation using biological methods 3) Enantiomer separation by HPLC chromatography using a column containing a chiral stationary phase. Separation of a racemic compound has been called “optical resolution” or simply “resolution”. Nowadays, the descriptions “enantiomer resolution” or “enantiomer separation” are also commonly used. Accordingly, “Enantiomer Separation” is used in the title of this book. The editor and all chapter contributors hope that this book is helpful for scientists and engineers working in this field.