Chiral Building Blocks in Asymmetric Synthesis

Chiral Building Blocks in Asymmetric Synthesis PDF Author: Elzbieta Wojaczynska
Publisher: John Wiley & Sons
ISBN: 3527349464
Category : Science
Languages : en
Pages : 692

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Book Description
Chiral Building Blocks in Asymmetric Synthesis A comprehensive introduction to the important classes of chiral building blocks Chirality — the asymmetric quality found in certain chemical compounds — plays an essential role in our world: chiral compounds can be found in biology, pharmaceutical compounds, agrochemicals, and fragrances. The stereoselective preparation of these complex molecular constructions constitutes a challenge. To this end, modern asymmetric synthesis utilizes a variety of valuable and efficient reagents employed as chiral auxiliaries, metal complexes and organocatalysts in stereoselective catalysis, and enantiopure reactants termed as chiral building blocks. In Chiral Building Blocks in Asymmetric Synthesis, the achievements in the fields of preparation of and applications of chiral blocks are presented. In doing so, the book comprehensively discusses the important classes of these reactants as the key for the asymmetric synthesis of chiral molecules. As such, it is an indispensable resource about synthetic methods, as well as possible modifications and transformations of important classes of chiral compounds. It also highlights the importance of their use as reactants and auxiliaries in the preparation of more sophisticated molecules or supramolecular systems. In Chiral Building Blocks in Asymmetric Synthesis readers will also find: Organization according to the most important compound classes — e.g. amino acids, BINOL and its derivatives, terpenes, and others — with an emphasis on synthesis and application A focus on the use of chiral building blocks for the preparation of bioactive compounds and supramolecular assemblies Chiral Building Blocks in Asymmetric Synthesis is a useful reference for organic chemists, catalytic chemists, chemists in industry, medicinal chemists, pharmaceutical chemists, and the libraries that support them.

Organosulfur Chemistry in Asymmetric Synthesis

Organosulfur Chemistry in Asymmetric Synthesis PDF Author: Takeshi Toru
Publisher: John Wiley & Sons
ISBN: 3527623248
Category : Science
Languages : en
Pages : 448

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Book Description
In this first book to gather the information on this hot topic otherwise widely spread throughout the literature, experienced editors and top international authors cover everything the reader needs -- from the synthesis of chiral organosulfur compounds to applications and catalysis: * Asymmetric synthesis of chiral sulfinates and sulfoxides * Synthesis and use of chiral dithioacetal derivatives, ylids, chiral sulfoximines and sulfinamides * Use of chiral sulfoxides as ligands in catalysis * Asymmetric reactions of alpha-sulfenyl, alpha-sulfinyl and alpha-sulfonyl carbanions. As a result, readers will be able to improve their own performance in asymmetric synthesis.

Chiral Building Blocks in Asymmetric Synthesis

Chiral Building Blocks in Asymmetric Synthesis PDF Author: Elzbieta Wojaczynska
Publisher: John Wiley & Sons
ISBN: 3527349464
Category : Science
Languages : en
Pages : 692

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Book Description
Chiral Building Blocks in Asymmetric Synthesis A comprehensive introduction to the important classes of chiral building blocks Chirality — the asymmetric quality found in certain chemical compounds — plays an essential role in our world: chiral compounds can be found in biology, pharmaceutical compounds, agrochemicals, and fragrances. The stereoselective preparation of these complex molecular constructions constitutes a challenge. To this end, modern asymmetric synthesis utilizes a variety of valuable and efficient reagents employed as chiral auxiliaries, metal complexes and organocatalysts in stereoselective catalysis, and enantiopure reactants termed as chiral building blocks. In Chiral Building Blocks in Asymmetric Synthesis, the achievements in the fields of preparation of and applications of chiral blocks are presented. In doing so, the book comprehensively discusses the important classes of these reactants as the key for the asymmetric synthesis of chiral molecules. As such, it is an indispensable resource about synthetic methods, as well as possible modifications and transformations of important classes of chiral compounds. It also highlights the importance of their use as reactants and auxiliaries in the preparation of more sophisticated molecules or supramolecular systems. In Chiral Building Blocks in Asymmetric Synthesis readers will also find: Organization according to the most important compound classes — e.g. amino acids, BINOL and its derivatives, terpenes, and others — with an emphasis on synthesis and application A focus on the use of chiral building blocks for the preparation of bioactive compounds and supramolecular assemblies Chiral Building Blocks in Asymmetric Synthesis is a useful reference for organic chemists, catalytic chemists, chemists in industry, medicinal chemists, pharmaceutical chemists, and the libraries that support them.

Chiral Sulfur Reagents

Chiral Sulfur Reagents PDF Author: Marian Mikolajczyk
Publisher: CRC Press
ISBN: 9780849391200
Category : Science
Languages : en
Pages : 294

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Book Description
Over the last three decades, more than 40 different classes of chiral (mirror-image) sulfur compounds have been described, and a number of useful procedures and applications have been developed for their use. Emphasizing modern methodologies, Chiral Sulfur Reagents demonstrates the great potential of enantionmerically pure sulfur reagents in transmitting chirality to other centers. Each chapter highlights the synthesis and synthetic uses of a particular class of chiral sulfur reagent, followed by examples of the most important experimental procedures.

Asymmetric Synthesis of Three-Membered Rings

Asymmetric Synthesis of Three-Membered Rings PDF Author: Hélène Pellissier
Publisher: John Wiley & Sons
ISBN: 3527802037
Category : Science
Languages : en
Pages : 800

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Book Description
The first handbook to focus on the asymmetric synthesis of different types of three-membered rings. The outstanding and experienced authors have an excellent international reputation and cover cyclopropanes, epoxides and aziridines as well as chiral oxaziridines in equal measure. To this end, they describe in detail different synthetic approaches starting with chiral substrates as well as the application of chiral metal- or organocatalysts. Furthermore, methods for the kinetic resolution of initially racemic products are treated alongside recent advances and novel developments in established techniques for the synthesis of three-membered rings. With its structured composition this is of high interest to scientists in methodological and natural product synthesis as well as those in industrial and pharmaceutical chemistry.

Organic Chemistry of Sulfur

Organic Chemistry of Sulfur PDF Author: S. Oae
Publisher: Springer Science & Business Media
ISBN: 1468420496
Category : Science
Languages : en
Pages : 714

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Book Description
In recent years organic sulfur chemistry has been growing at an even faster pace than the very rapid development in other fields of chemistry. This phenomenal growth is undoubtedly a reflection of industrial and public demands: not only was sulfur recently in overall surplus for the first time in the history of the chemical industry but it has now become a prin cipal environmental hazard in the form of sulfur dioxide, sulfuric acid and hydrogen sulfide. Another reason, discernible in the last fifteen years, has been the desire, on the part of individual chemists and all types of research managers, to move away from the established chemistry of carbon into the less well understood and sometimes virgin chemistries of the other elements which form covalent bonds. As a result of this movement the last decade has seen the development of sulfur chemistry into a well-organized and now much better understood branch of organic chemistry. Enough of the detail has become clear to see mechanistic interrelationships between previously unconnected reactions and with this clarification the whole subject has in tum become systema tized and subdivided. The divalent sulfur chemistry of thiols, monosulfides, disulfides and polysulfides is a large area in itself, much of it devoted to oxidation-reduction and the breakage and formation of sulfur-sulfur bonds, although interesting discoveries are now being made about the reac tivity of certain sulfur-carbon bonds. Of course, this area has its own mas sive biochemical branch involving enzymes and proteins.

Organosulfur Chemistry

Organosulfur Chemistry PDF Author: Philip Page
Publisher:
ISBN:
Category : Organic compounds
Languages : en
Pages : 0

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Book Description
"The impact of organosulfur chemistry, especially in the areas of heterocyclic chemistry, stereocontrolled processes, and asymmetric synthesis, has led to a resurgence of interest in the field." "This book is the second in a series intended to provide coverage of topics of current interest throughout the whole range of organosulfur chemistry. Each volume is comprised of five or six chapters, each consisting of an in-depth, self-contained review in a well-defined area. This volume and its predecessor Organosulfur Chemistry, Synthetic Aspects will prove valuable references for researchers and practitioners in organic chemistry." "Key Features * Methods of asymmetric sulfur oxidation processes * Preparation of chiral sulfoxides in nucleophilic displacement at sulfur * Conformational preferences of the sulfinyl group * Preparation and chemistry of unsaturated sulfoxides * Applications of sulfoxides as stereocontrol elements * The chemistry of sulfolenes." -- Book Cover.

Organoselenium Chemistry

Organoselenium Chemistry PDF Author: J. Drabowicz
Publisher: Springer Science & Business Media
ISBN: 3540665161
Category : Medical
Languages : en
Pages : 265

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Book Description
Embarking on a new millennium, the book in hands describes the recent developments of organsoselenium chemistry in all facets. Various distinguished scientists have contributed, with their skill and expertise, making this book a valuable source for synthetic oriented organic chemists and for those, who want to get a first insight into the chemistry of selenium.

Organoselenium Chemistry

Organoselenium Chemistry PDF Author: Thomas Wirth
Publisher: John Wiley & Sons
ISBN: 3527641955
Category : Science
Languages : en
Pages : 441

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Book Description
Selenium-based methods in synthetic chemistry have developed rapidly over the past years and are now offering highly useful tools for organic synthesis. Filling the gap for a comprehensive handbook and ready reference, this book covers all modern developments within the field, including biochemical aspects. The chemistry chapters are organized according to the different reactivities of various selenium compounds and reagents, with each chapter dealing with a special reaction type. Also includes a table with 77Se NMR shifts to aid in practical problems. From the Contents: * Electrophilic and Nucleophilic Selenium * Selenium Compounds in Radical Reactions * Selenium-Stabilized Carbanions * Selenium Compounds with Valency Higher than Two * Selenocarbonyls * Selenoxide Elimination and [2,3]-Sigmatropic Rearrangement * Selenium Compounds as Ligands and Catalysts * Biological and Biochemical Aspects of Selenium Compounds

Chalcogen Chemistry

Chalcogen Chemistry PDF Author: Vito Lippolis
Publisher: Royal Society of Chemistry
ISBN: 1839167394
Category : Science
Languages : en
Pages : 655

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Book Description
Up until a few decades ago, chalcogen chemistry was mainly represented by the chemistry of sulfur-containing compounds. However, with the rise in research around selenium and tellurium compound chemistry, the field has developed significantly as it continues to uncover and understand the peculiarities chalcogens exhibit. Taking an introductory approach, this book is the foundation to the subject that has been long needed. Covering organic and inorganic synthesis, structural properties, coordination chemistry and computational modelling, all key classes of chalcogen compounds are illustrated. Applications across materials science, biology, pharmaceutical science and environmental topics highlight to readers the impact of chalcogen chemistry in many aspects of research. Edited by international leaders in the field, Chalcogen Chemistry brings together contributions from acclaimed researchers around the world. This book is ideal for newcomers and established researchers, and provides the first building block to uncovering this fascinating field.

Organosulfur chemistry

Organosulfur chemistry PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Book Description