Radical and Ion pairing Strategies in Asymmetric Organocatalysis

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  • Publisher : Elsevier
  • Release : 21 July 2017
  • ISBN : 9780081011553
  • Page : 184 pages
  • Rating : 4.5/5 from 103 voters

Radical and Ion pairing Strategies in Asymmetric Organocatalysis Book PDF summary

Considering the challenge of sustainability facing our society in the coming decades, catalysis is without any doubt a research area of major importance. In this regard, asymmetric organocatalysis, now considered a pillar of green chemistry, deserves particular attention. The first chapter of this volume examines the topic of asymmetric organocatalysis in light of radical chemistry. Recent important progress in this field has been attained by promoting the formation and harnessing the high reactivity of open-shell intermediates. Merging organocatalysis with radical chemistry has been the key to solving some longstanding bottlenecks, and has also significantly contributed to reinforcing the key role of organocatalysis in asymmetric catalysis. This chapter presents the most significant developments in this area, with a particular focus on asymmetric SOMO- and photoredox-organocatalyzed transformations. Chapter 2 focuses on quaternary ammonium salts (R4N+X-), especially chiral derivatives, and their behavior as unique catalysts in organocatalysis. Forming chiral ion-pairs capable of promoting asymmetric reactions, they also operate as unique “transporters involved in phase transfer catalytic processes between liquid–liquid or liquid–solid systems. Furthermore, they offer unique opportunities when forming cooperative ion-paired entities R4N+X-, allowing a synergistic implication of the counter-ion X- either as Brønsted bases or Lewis bases. Specific design of such chiral catalysts in modern chemistry and better insight into their mode of activation facilitates efficient and unprecedented chemical transformations. This chapter provides an overview of the use of chiral quaternary ammonium salts in organocatalysis, emphasizing both general mechanistic aspects and the scope of this approach. Presents the most significant developments with a particular focus on asymmetric SOMO- and photoredox-organocatalyzed transformations Givies a larger overview of chiral ammonium salts in organocatalysis rather than a specific review dedicated to specialists in this area Affords a historical evolution of this field of research

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Radical and Ion-pairing Strategies in Asymmetric Organocatalysis

Radical and Ion-pairing Strategies in Asymmetric Organocatalysis
  • Author : Maxime R Vitale,Sylvain Oudeyer,Vincent Levacher,Jean-Francois Briere
  • Publisher : Elsevier
  • Release Date : 2017-07-21
  • ISBN : 9780081011553
DOWNLOAD BOOKRadical and Ion-pairing Strategies in Asymmetric Organocatalysis

Considering the challenge of sustainability facing our society in the coming decades, catalysis is without any doubt a research area of major importance. In this regard, asymmetric organocatalysis, now considered a pillar of green chemistry, deserves particular attention. The first chapter of this volume examines the topic of asymmetric organocatalysis in light of radical chemistry. Recent important progress in this field has been attained by promoting the formation and harnessing the high reactivity of open-shell intermediates. Merging organocatalysis with radical

Catalytic Asymmetric Synthesis

Catalytic Asymmetric Synthesis
  • Author : Takahiko Akiyama,Iwao Ojima
  • Publisher : John Wiley & Sons
  • Release Date : 2022-05-27
  • ISBN : 9781119736417
DOWNLOAD BOOKCatalytic 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

Dienamine Catalysis for Organic Synthesis

Dienamine Catalysis for Organic Synthesis
  • Author : Kengadarane Anebouselvy,Dhevalapally B Ramachary,Indresh Kumar
  • Publisher : Royal Society of Chemistry
  • Release Date : 2018-03-02
  • ISBN : 9781788014328
DOWNLOAD BOOKDienamine Catalysis for Organic Synthesis

In the past 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

Recent Advances in Organocatalysis

Recent Advances in Organocatalysis
  • Author : Iyad Karamé,Hassan Srour
  • Publisher : BoD – Books on Demand
  • Release Date : 2016-09-28
  • ISBN : 9789535126720
DOWNLOAD BOOKRecent Advances in Organocatalysis

Organocatalysis has recently attracted enormous attention as green and sustainable catalysis. It was realized as a fundamental field providing wide families of catalysts for important organic transformations. It will certainly develop in the future. Given the diversity of accessible transformations, metal-catalyzed reactions have become major tools in organic synthesis that will undoubtedly continue to have an important impact in the future. Alternatively, over the last years, a metal-free approach such as organocatalysis has reached a level of faithfulness, allowing researchers

Organocatalysis

Organocatalysis
  • Author : Maurizio Benaglia
  • Publisher : Walter de Gruyter GmbH & Co KG
  • Release Date : 2021-07-19
  • ISBN : 9783110590050
DOWNLOAD BOOKOrganocatalysis

Organocatalysis is considered today one of the three pillars in asymmetric catalysis, along with biocatalysis and organometallic catalysis. The possibility to combine organocatalysis with radical chemistry, photocatalysis and enabling technologies opened new avenues in organic synthesis.

Anion-Binding Catalysis

Anion-Binding Catalysis
  • Author : Olga Garcia-Mancheno
  • Publisher : John Wiley & Sons
  • Release Date : 2021-12-28
  • ISBN : 9783527348572
DOWNLOAD BOOKAnion-Binding Catalysis

Explores the potential of new types of anion-binding catalysts to solve challenging synthetic problems Anion-Binding Catalysis introduces readers to the use of anion-binding processes in catalytic chemical activation, exploring how this approach can contribute to the future design of novel synthetic transformations. Featuring contributions by world-renowned scientists in the field, this authoritative volume describes the structure, properties, and catalytic applications of anions as well as synthetic applications and practical analytical methods. In-depth chapters are organized by type of catalyst rather

Fluorous Chemistry

Fluorous Chemistry
  • Author : István T. Horváth
  • Publisher : Springer Science & Business Media
  • Release Date : 2011-11-04
  • ISBN : 9783642252334
DOWNLOAD BOOKFluorous Chemistry

Structural, Physical, and Chemical Properties of Fluorous Compounds, by J.A. Gladysz Selective Fluoroalkylation of Organic Compounds by Tackling the “Negative Fluorine Effect”, by W. Zhang, C. Ni and J. Hu Synthetic and Biological Applications of Fluorous Reagents as Phase Tags, by S. Fustero, J. L. Aceña and S. Catalán Chemical Applications of Fluorous Reagents and Scavengers, by Marvin S. Yu Fluorous Methods for the Synthesis of Peptides and Oligonucleotides, by B. Miriyala Fluorous Organic Hybrid Solvents for

Modern Strategies for Heterocycle Synthesis

Modern Strategies for Heterocycle Synthesis
  • Author : Gianfranco Favi
  • Publisher : MDPI
  • Release Date : 2021-03-17
  • ISBN : 9783036503400
DOWNLOAD BOOKModern Strategies for Heterocycle Synthesis

Heterocycles feature widely in natural products, agrochemicals, pharmaceuticals and dyes, and their synthesis is of great interest to synthetic chemists in both academia and industry. The contributions of recent applications of new methodologies in C–H activation, photoredox chemistry, cross-coupling strategies, borrowing hydrogen catalysis, multicomponent and solvent-free reactions, regio- and stereoselective syntheses, as well as other new, attractive approaches for the construction of heterocyclic scaffolds are of great interest. This Special Issue is dedicated to featuring the latest research that

Journal

Journal
  • Author : American Chemical Society
  • Publisher : Unknown
  • Release Date : 2003
  • ISBN : NYPL:33433068513062
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Dissertation Abstracts International

Dissertation Abstracts International
  • Author : Anonim
  • Publisher : Unknown
  • Release Date : 2008
  • ISBN : STANFORD:36105133522040
DOWNLOAD BOOKDissertation Abstracts International

Handbook of Synthetic Photochemistry

Handbook of Synthetic Photochemistry
  • Author : Angelo Albini,Maurizio Fagnoni
  • Publisher : John Wiley & Sons
  • Release Date : 2010-02-01
  • ISBN : 9783527323913
DOWNLOAD BOOKHandbook of Synthetic Photochemistry

Unique in its focus on preparative impact rather than mechanistic details, this handbook provides an overview of photochemical reactions classed according to the structural feature that is built in the photochemical step, so as to facilitate use by synthetic chemists unfamiliar with this topic. An introductory section covers practical questions on how to run a photochemical reaction, while all classes of the most important photocatalytic reactions are also included. Perfect for organic synthetic chemists in academia and industry.

Asymmetric Catalysis

Asymmetric Catalysis
  • Author : B. Bosnich
  • Publisher : Springer Science & Business Media
  • Release Date : 2012-12-06
  • ISBN : 9789400951778
DOWNLOAD BOOKAsymmetric Catalysis

The rate of advance in areas of science is seldom constant. Usually certain fields effloresce with activity because of the ~ealization that solutions are possible to long standing important problems. So it is now with asymmetric catalysis, a field which promises to change profoundly the strategic thinking of synthetic chemists. As this Report will show, reagents which can induce catalytic enantiocontrol of chemical transformations could represent the ultimate synthetic method. Nearly all synthetic strategies of complex molecules involve steps which

Efficiency in Natural Product Total Synthesis

Efficiency in Natural Product Total Synthesis
  • Author : Pei-Qiang Huang,Zhu-Jun Yao,Richard P. Hsung
  • Publisher : John Wiley & Sons
  • Release Date : 2018-07-20
  • ISBN : 9781118940204
DOWNLOAD BOOKEfficiency in Natural Product Total Synthesis

Uniting the key organic topics of total synthesis and efficient synthetic methodologies, this book clearly overviews synthetic strategies and tactics applied in total synthesis, demonstrating how the total synthesis of natural products enables scientific and drug discovery. • Focuses on efficiency, a fundamental and important issue in natural products synthesis that makes natural product synthesis a powerful tool in biological and pharmaceutical science • Describes new methods like organocatalysis, multicomponent and cascade reactions, and biomimetic synthesis • Appeals to graduate students with two

Photoorganocatalysis In Organic Synthesis

Photoorganocatalysis In Organic Synthesis
  • Author : Maurizio Fagnoni,Stefano Protti,Davide Ravelli
  • Publisher : World Scientific
  • Release Date : 2019-02-19
  • ISBN : 9781786346063
DOWNLOAD BOOKPhotoorganocatalysis In Organic Synthesis

The use of organocatalysts able to photocatalyze an organic reaction is a rapidly growing field. These photocatalyzed transformations are more environmentally sustainable with respect to the use of expensive/toxic metal-based (photo)catalysts.Based on the authors' extensive experience in photogenerated intermediates, this book presents an overview on photocatalyzed organic processes having a synthetic significance, where an organic molecule functions as the photocatalyst.After a brief introduction defining the nature and the characteristics of a photoorganocatalyst (POC), the chapters are

Asymmetric Organocatalysis Combined with Metal Catalysis

Asymmetric Organocatalysis Combined with Metal Catalysis
  • Author : Bruce A. Arndtsen,Liu-Zhu Gong
  • Publisher : Springer Nature
  • Release Date : 2020-04-24
  • ISBN : 9783030438517
DOWNLOAD BOOKAsymmetric Organocatalysis Combined with Metal Catalysis

The series Topics in Current Chemistry Collections presents critical reviews from the journal Topics in Current Chemistry organized in topical volumes. The scope of coverage is all areas of chemical science including the interfaces with related disciplines such as biology, medicine and materials science. The goal of each thematic volume is to give the non-specialist reader, whether in academia or industry, a comprehensive insight into an area where new research is emerging which is of interest to a larger scientific