Organocatalytic Enantioselective Conjugate Addition Reactions

Organocatalytic Enantioselective Conjugate Addition Reactions
Author: Jose L Vicario
Publisher: Royal Society of Chemistry
Total Pages: 365
Release: 2010-10-18
Genre: Science
ISBN: 1849732183

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This book, unique in its field, is a comprehensive description of all the methodologies reported for carrying out conjugate addition reactions in a stereoselective way, using small chiral organic molecules as catalysts (organocatalysts). In the last 3-4 years, this has been a rapidly growing field in organic chemistry, and many papers have appeared reporting excellent protocols for carrying out these highly efficient transformations that compete well with other classical approaches using transition metal catalysts. A particularly attractive feature of this transformation relies upon the fact that the conjugate addition (Michael and Hetero-Michael reactions) is an extraordinarily effective means to initiate cascade processes which result in the formation of complex molecules from very small and simple starting blocks. The book, written by noted experts, covers all recent advances in this hot topic, and provides a good state-of-the-art review for organic chemists working in this field and all those who wish to start projects in this area.

Artificial Metalloenzymes and MetalloDNAzymes in Catalysis

Artificial Metalloenzymes and MetalloDNAzymes in Catalysis
Author: Montserrat Diéguez
Publisher: John Wiley & Sons
Total Pages: 431
Release: 2018-02-21
Genre: Technology & Engineering
ISBN: 3527804072

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An important reference for researchers in the field of metal-enzyme hybrid catalysis Artificial Metalloenzymes and MetalloDNAzymes in Catalysis offers a comprehensive review of the most current strategies, developed over recent decades, for the design, synthesis, and optimization of these hybrid catalysts as well as material about their application. The contributors—noted experts in the field—present information on the preparation, characterization, and optimization of artificial metalloenzymes in a timely and authoritative manner. The authors present a thorough examination of this interesting new platform for catalysis that combines the excellent selective recognition/binding properties of enzymes with transition metal catalysts. The text includes information on the various applications of metal-enzyme hybrid catalysts for novel reactions, offers insights into the latest advances in the field, and contains an informative perspective on the future: Explores the development of artificial metalloenzymes, the modern and strongly evolving research field on the verge of industrial application Contains a comprehensive reference to the research area of metal-enzyme hybrid catalysis that has experienced tremendous growth in recent years Includes contributions from leading researchers in the field Shows how this new catalysis combines the selective recognition/binding properties of enzymes with transition metal catalysts Written for catalytic chemists, bioinorganic chemists, biochemists, and organic chemists, Artificial Metalloenzymes and MetalloDNAzymes in Catalysis offers a unique reference to the fundamentals, concepts, applications, and the most recent developments for more efficient and sustainable synthesis.

Superbases for Organic Synthesis

Superbases for Organic Synthesis
Author: Tsutomu Ishikawa
Publisher: John Wiley & Sons
Total Pages: 336
Release: 2009-01-26
Genre: Science
ISBN: 9780470740866

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Guanidines, amidines and phosphazenes have been attracting attention in organic synthesis due to their potential functionality resulting from their extremely strong basicity. They are also promising catalysts because of their potential for easy molecular modification, possible recyclability, and reduced or zero toxicity. Importantly, these molecules can be derived as natural products – valuable as scientists move towards “sustainable chemistry”, where reagents and catalysts are derived from biomaterial sources. Superbases for Organic Synthesis is an essential guide to these important molecules for preparative organic synthesis. Topics covered include the following aspects: an introduction to organosuperbases physicochemical properties of organic superbases amidines and guanidines in organic synthesis phosphazene: preparation, reaction and catalytic role polymer-supported organosuperbases application of organosuperbases to total synthesis related organocatalysts: proton sponges and urea derivatives amidines and guanidines in natural products and medicines Superbases for Organic Synthesis is a comprehensive, authoritative and up-to-date guide to these important reagents for organic chemists, drug discovery researchers and those interested in the chemistry of natural products.

Catalytic Asymmetric Synthesis

Catalytic Asymmetric Synthesis
Author: Takahiko Akiyama
Publisher: John Wiley & Sons
Total Pages: 798
Release: 2022-05-27
Genre: Science
ISBN: 1119736412

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Catalytic Asymmetric Synthesis Seminal text presenting detailed accounts of the most important catalytic asymmetric reactions known today This book covers the preparation of enantiomerically pure or enriched chemical compounds by use of chiral catalyst molecules. While reviewing the most important catalytic methods for asymmetric organic synthesis, this book highlights the most important and recent developments in catalytic asymmetric synthesis. Edited by two well-qualified experts, sample topics covered in the work include: Metal catalysis, organocatalysis, photoredox catalysis, enzyme catalysis C–H bond functionalization reactions Carbon–carbon bond formation reactions, carbon–halogen bond formation reactions, hydrogenations, polymerizations, flow reactions Axially chiral compounds Retaining the best of its predecessors but now thoroughly up to date with the important and recent developments in catalytic asymmetric synthesis, the 4th edition of Catalytic Asymmetric Synthesis serves as an excellent desktop reference and text for researchers and students, from upper-level undergraduates all the way to experienced professionals in industry or academia.

N-Heterocyclic Carbenes in Organocatalysis

N-Heterocyclic Carbenes in Organocatalysis
Author: Akkattu T. Biju
Publisher: John Wiley & Sons
Total Pages: 407
Release: 2019-01-07
Genre: Science
ISBN: 3527809058

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Summarizing the emerging field of N-heterocyclic carbenes used in organocatalysis, this is an excellent overview of the synthesis and applications of NHCs focusing on carbon-carbon and carbon-heteroatom bond formation. Alongside comprehensive coverage of the synthesis, characteristics and applications, this handbook and ready reference also includes chapters on NHCs for polymerization reactions and natural product synthesis.

Chiral Ferrocenes in Asymmetric Catalysis

Chiral Ferrocenes in Asymmetric Catalysis
Author: Li-Xin Dai
Publisher: John Wiley & Sons
Total Pages: 433
Release: 2010-02-01
Genre: Science
ISBN: 3527322809

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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.

Dienamine Catalysis for Organic Synthesis

Dienamine Catalysis for Organic Synthesis
Author: Kengadarane Anebouselvy
Publisher: Royal Society of Chemistry
Total Pages: 220
Release: 2018-03-02
Genre: Science
ISBN: 1782620907

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In the last decade a new era in asymmetric catalysis has been realised by the discovery of L-proline induced chiral enamines from carbonyls. Inspired by this, researchers have developed many other primary catalytic species in situ, more recently secondary catalytic species such as aminals have been identified for use in asymmetric synthesis. High-yielding asymmetric synthesis of bioactive and natural products through mild catalysis is an efficient approach in reaction engineering. In the early days, synthetic chemists mainly focused on the synthesis of complex molecules, with less attention on the reaction efficiency and eco-friendly conditions. Recent investigations have been directed towards the development of atom economy, eco-friendly and enantioselective synthesis for more targeted and efficient synthesis. Building on the momentum of this rapidly expanding research area, Dienamine catalysis for organic synthesis will provide a comprehensive introduction, from the preformed species, in situ generation and onto their applications in the synthesis of bioactive molecules and natural products.

The Nitro Group in Organic Synthesis

The Nitro Group in Organic Synthesis
Author: Noboru Ono
Publisher: John Wiley & Sons
Total Pages: 392
Release: 2003-05-08
Genre: Science
ISBN: 0471458465

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The most useful reactions of organonitro compounds in organic synthesis Compounds containing nitro groups are useful intermediates for the synthesis of natural products and other complex organic molecules. The Nitro Group in Organic Synthesis focuses on reactions that proceed under mild conditions, important functional groups that can be synthesized by conversion of nitro groups, and the stereoselectivity of reactions of nitro compounds. These issues are of great importance to practicing researchers in today's pharmaceutical, agrochemical, and fine chemical industries. The Nitro Group in Organic Synthesis also emphasizes environmentally-friendly methods for nitration, the importance of aliphatic nitro compounds, and modern preparation of nitro compounds. Other topics discussed include: * Henry reaction * Asymmetric Michael addition * Alkylation, acylation, halogenation, and related reactions of RNO2 * Substitution and elimination of NO2 and RNO2 The Nitro Group in Organic Synthesis is a useful resource for researchers and students in organic and medicinal chemistry.