Radical and Ion pairing Strategies in Asymmetric Organocatalysis

Written By Maxime R Vitale
Radical and Ion pairing Strategies in Asymmetric Organocatalysis
  • Publsiher : Elsevier
  • Release : 21 July 2017
  • ISBN : 0081011555
  • Pages : 184 pages
  • Rating : 4/5 from 21 reviews
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Read or download book entitled Radical and Ion pairing Strategies in Asymmetric Organocatalysis written by Maxime R Vitale which was release on 21 July 2017, this book published by Elsevier. Available in PDF, EPUB and Kindle Format. Book excerpt: 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

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
  • Total pages : 184
  • ISBN : 0081011555
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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 ...

Catalytic Asymmetric Synthesis

Catalytic Asymmetric Synthesis
  • Author : Takahiko Akiyama,Iwao Ojima
  • Publisher : John Wiley & Sons
  • Release Date : 2022-05-27
  • Total pages : 912
  • ISBN : 0081011555
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Summary : 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 ...

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
  • Total pages : 206
  • ISBN : 0081011555
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Summary : 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 ...

Recent Advances in Organocatalysis

Recent Advances in Organocatalysis
  • Author : Iyad Karamé,Hassan Srour
  • Publisher : BoD – Books on Demand
  • Release Date : 2016-09-28
  • Total pages : 192
  • ISBN : 0081011555
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Summary : 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 ...

Organocatalysis

Organocatalysis
  • Author : Maurizio Benaglia
  • Publisher : Walter de Gruyter GmbH & Co KG
  • Release Date : 2021-07-19
  • Total pages : 451
  • ISBN : 0081011555
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Summary : 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....

Modern Strategies for Heterocycle Synthesis

Modern Strategies for Heterocycle Synthesis
  • Author : Gianfranco Favi
  • Publisher : MDPI
  • Release Date : 2021-03-17
  • Total pages : 372
  • ISBN : 0081011555
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Summary : 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 ...

Dissertation Abstracts International

Dissertation Abstracts International
  • Author : Anonim
  • Publisher : Unknown
  • Release Date : 2008
  • Total pages : 212
  • ISBN : 0081011555
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Summary : Download or read online Dissertation Abstracts International written by , published by which was released on 2008. Get Dissertation Abstracts International Books now! Available in PDF, ePub and Kindle....

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
  • Total pages : 512
  • ISBN : 0081011555
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Summary : 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 ...

Anion Binding Catalysis

Anion Binding Catalysis
  • Author : Olga Garcia-Mancheno
  • Publisher : John Wiley & Sons
  • Release Date : 2021-12-28
  • Total pages : 300
  • ISBN : 0081011555
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Summary : 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, ...

Fluorous Chemistry

Fluorous Chemistry
  • Author : István T. Horváth
  • Publisher : Springer Science & Business Media
  • Release Date : 2011-11-04
  • Total pages : 414
  • ISBN : 0081011555
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Summary : 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. ...

Journal

Journal
  • Author : American Chemical Society
  • Publisher : Unknown
  • Release Date : 2003
  • Total pages : 212
  • ISBN : 0081011555
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Summary : Download or read online Journal written by American Chemical Society, published by which was released on 2003. Get Journal Books now! Available in PDF, ePub and Kindle....

Directory of Graduate Research

Directory of Graduate Research
  • Author : American Chemical Society. Committee on Professional Training
  • Publisher : Unknown
  • Release Date : 2005
  • Total pages : 212
  • ISBN : 0081011555
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Summary : Faculties, publications and doctoral theses in departments or divisions of chemistry, chemical engineering, biochemistry and pharmaceutical and/or medicinal chemistry at universities in the United States and Canada....