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Author: Francois Terrier
Publisher: John Wiley & Sons
ISBN: 3527656162
Category : Science
Languages : en
Pages : 488
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Book Description
This book provides a comprehensive overview of nucleophilic aromatic substitutions, focusing on the mechanistic and synthetic features that govern these reactions. The first chapter presents a detailed mechanistic analysis of the factors determining the feasibility of SNAr substitutions, providing decisive information to predict regioselectivity of many reactions and to define the conditions for concerted SNAr processes. Reflecting the key role played by these species as intermediates in most SNAr reactions, chapter 2 then discusses the chemistry of anionic sigma-complexes. Chapter 3 describes the concept of superelectrophilicity in SNAr substitutions, as it has recently emerged from the reactivity of strongly electron-deficient aromatic and heteroaromatic structures. The numerous synthetic applications are considered in depth in the chapters 4 and 5 that follow on intermolecular and intramolecular nucleophilic aromatic substitutions. Then, chapter 6 focuses on substitutions proceeding formally through displacement of a hydride ion, a hot topic in the field. The final chapter brings together concise yet comprehensive discussions surrounding SNAr photosubstitutions, radical substitutions, and ANRORC substitutions. Authored by a highly respected chemist who has contributed greatly to the field over the past two decades, this is a valuable information source for all organic chemists working in academia or the pharmaceutical and agrochemical industries.
Author: Francois Terrier
Publisher: John Wiley & Sons
ISBN: 3527656162
Category : Science
Languages : en
Pages : 488
Get Book Here
Book Description
This book provides a comprehensive overview of nucleophilic aromatic substitutions, focusing on the mechanistic and synthetic features that govern these reactions. The first chapter presents a detailed mechanistic analysis of the factors determining the feasibility of SNAr substitutions, providing decisive information to predict regioselectivity of many reactions and to define the conditions for concerted SNAr processes. Reflecting the key role played by these species as intermediates in most SNAr reactions, chapter 2 then discusses the chemistry of anionic sigma-complexes. Chapter 3 describes the concept of superelectrophilicity in SNAr substitutions, as it has recently emerged from the reactivity of strongly electron-deficient aromatic and heteroaromatic structures. The numerous synthetic applications are considered in depth in the chapters 4 and 5 that follow on intermolecular and intramolecular nucleophilic aromatic substitutions. Then, chapter 6 focuses on substitutions proceeding formally through displacement of a hydride ion, a hot topic in the field. The final chapter brings together concise yet comprehensive discussions surrounding SNAr photosubstitutions, radical substitutions, and ANRORC substitutions. Authored by a highly respected chemist who has contributed greatly to the field over the past two decades, this is a valuable information source for all organic chemists working in academia or the pharmaceutical and agrochemical industries.
Author: Oleg N. Chupakhin
Publisher: Academic Press
ISBN: 0323140599
Category : Science
Languages : en
Pages : 378
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Book Description
Nucleophilic aromatic substitution in carbo- and heteroaromatic systems is a subject of considerable interest to chemists. This book uniquely addresses the systematic analysis of a vast range of nucleophilic substitutions of aromatic hydrogen. - Nucleophilic displacement of hydrogen (the S N/H reactions) in pi-deficient aromatics, such as nitroarenes, arene-metal complexes, and the like - Nucleophilic displacement of hydrogen in heterocyclic substrates such as pyridines, their aza and benzo analogs, pyrylium and thiapyrylium cations, and other heterocycles - Mechanisms for the S N/H reactions (S N/H(AE), vicarious nucleophilic substitutions, and radical S N/H substitutions
Author: Penny Chaloner
Publisher: CRC Press
ISBN: 1482206919
Category : Medical
Languages : en
Pages : 1272
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Book Description
Offering a different, more engaging approach to teaching and learning, Organic Chemistry: A Mechanistic Approach classifies organic chemistry according to mechanism rather than by functional group. The book elicits an understanding of the material, by means of problem solving, instead of purely requiring memorization. The text enables a deep unders
Author: Michael R. Kilbourn
Publisher: John Wiley & Sons
ISBN: 1119500540
Category : Science
Languages : de
Pages : 768
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Book Description
Sorgfältig aktualisierte Neuauflage dieses wegweisenden Referenzwerk der radiopharmazeutischen Wissenschaften Die 2. Auflage des Handbook of Radiopharmaceuticals wirft einen umfassenden analytischen Blick auf das Fachgebiet und bietet aktuelle Informationen zu zentralen Themen, u. a. die Herstellung von Radionukliden, synthetische Methoden, Entwicklungen in der Radiopharmazie, Regelwerke, und zu einer Fülle praktischer Anwendungen. Als wertvolles Nachschlagewerk für Einsteiger und erfahrene Praktiker untersucht diese Publikation die neuesten Konzepte und Fragestellungen unter Berücksichtigung des gezielten Einsatzes diagnostischer und therapeutischer Radiopharmazeutika. Die Beiträge stammen von Experten verschiedenster Unterdisziplinen und lassen den Leser eintauchen in die Radiochemie, Nuklearmedizin, molekulare Bildgebung u.v.m. Die Nuklearmedizin und radiopharmazeutischen Wissenschaften haben sich seit Veröffentlichung der 1. Auflage stark verändert. Neue Radiopharmazeutika für Diagnostik und Therapie wurden von der FDA zugelassen, klinische PET- und SPECT-Scans haben drastisch zugenommen und Fortschritte im Bereich Künstliche Intelligenz haben zu signifikant verbesserten Forschungsverfahren geführt. Diese vollständig überarbeitete Auflage stellt den derzeitigen Erkenntnisstand des Fachgebiets vor, ergänzt um aktualisierte und neue Inhalte. Neue Kapitel beschäftigen sich mit heutigen Good Manufacturing Practice, regulatorischen Entwicklungen und neuen Ansätzen bei der Qualitätskontrolle. Damit wird sichergestellt, dass die Leserschaft über die aufregenden Entwicklungen der letzten Jahre rundum im Bilde ist. Dieses wichtige Referenzwerk - bietet durchgängig neue und überarbeitete Inhalte. - deckt zentrale Anwendungsbereiche in der Diagnostik und Therapie ab, für die Onkologie, Neurologie und Kardiologie. - unterstreicht die multidisziplinäre Ausrichtung der radiopharmazeutischen Wissenschaften. - zeigt, wie Pharmaunternehmen mit modernen Bildgebungsverfahren der Radiopharmazie neue Medikamente entwickeln. - untersucht heutige und neue Anwendungen der Positronen-Emissions-Tomographie (PET) und Single-Photonen-Emissions-Computertomographie (SPECT). Die Herausgeber sind anerkannte Experten der Fachrichtungen Radiochemie und PET-Bildgebung. Die 2. Auflage des Handbook of Radiopharmaceuticals: Radiochemistry and Applications ist ein Muss für Postdoktoranden, Forscher und Fachexperten in der Pharmazeutischen Industrie und richtet sich ebenso an die akademische Forschung und Lehre, an Graduierte und Einsteiger in das Fachgebiet der Radiopharmazeutika.
Author: Noboru Ono
Publisher: John Wiley & Sons
ISBN: 0471458465
Category : Science
Languages : en
Pages : 392
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Book Description
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.
Author: Mohammad Niyaz Khan
Publisher: CRC Press
ISBN: 1420015842
Category : Science
Languages : en
Pages : 504
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Book Description
Micelles are prevalent in naturally occurring and biological catalytic reactions. However, it is only in recent decades that scientists have developed kinetic models clarifying how micelle-mediated catalysis works at a molecular level. Written by a leading expert in the field, Micellar Catalysis is an in-depth examination of how micelles affect rea
Author: Francois Terrier
Publisher: John Wiley & Sons
ISBN: 9783527318612
Category : Science
Languages : en
Pages : 0
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Book Description
This book provides a comprehensive overview of nucleophilic aromatic substitutions, focusing on the mechanistic and synthetic features that govern these reactions. The first chapter presents a detailed mechanistic analysis of the factors determining the feasibility of SNAr substitutions, providing decisive information to predict regioselectivity of many reactions and to define the conditions for concerted SNAr processes. Reflecting the key role played by these species as intermediates in most SNAr reactions, chapter 2 then discusses the chemistry of anionic sigma-complexes. Chapter 3 describes the concept of superelectrophilicity in SNAr substitutions, as it has recently emerged from the reactivity of strongly electron-deficient aromatic and heteroaromatic structures. The numerous synthetic applications are considered in depth in the chapters 4 and 5 that follow on intermolecular and intramolecular nucleophilic aromatic substitutions. Then, chapter 6 focuses on substitutions proceeding formally through displacement of a hydride ion, a hot topic in the field. The final chapter brings together concise yet comprehensive discussions surrounding SNAr photosubstitutions, radical substitutions, and ANRORC substitutions. Authored by a highly respected chemist who has contributed greatly to the field over the past two decades, this is a valuable information source for all organic chemists working in academia or the pharmaceutical and agrochemical industries.
Author: Eric V. Anslyn
Publisher: University Science Books
ISBN: 9781891389313
Category : Science
Languages : en
Pages : 1148
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Book Description
In additionto covering thoroughly the core areas of physical organic chemistry -structure and mechanism - this book will escortthe practitioner of organic chemistry into a field that has been thoroughlyupdated.
Author: Akkattu T. Biju
Publisher: John Wiley & Sons
ISBN: 3527346465
Category : Science
Languages : en
Pages : 530
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Book Description
A groundbreaking book to offer a a comprehensive account of important reactions involving arynes Modern Aryne Chemistry is the first book on the market to offer a conceptual framework to the reactions related to arynes. It also provides a systematic introduction to the cycloaddition reactions, insertion reactions and transition-metal-catalyzed transformations of arynes. The author, a noted expert on the topic, highlights a novel strategy for carbon-carbon and carbon-heteroatom bond construction using arynes. The book reveiws the recent use of aryne chemistry for the development of new multicomponent reactions. New advances in this area has shown rapid emergence of a new class of reactions classified under rearrangement reactions. The author also includes information on aryne methods that have been employed for the synthesis of several natural products. The simplicity and sophistication of the synthetic strategy using arynes can serve as a springboard for organic chemists to explore new possibilities and imagine applications of the concept of arynes. This important book: Presents a one-of-kind comprehensive guide to arynes reactions Offers a proven approach to the synthesis of natural product and polymers Reviews the most recent developments in the carbon-carbon and carbon-heteroatom bond-forming reactions involving arynes Written for organic, pharmaceutical, medicinal, natural products, and catalytic Chemists, Modern Aryne Chemistry offers a comprehensive review of the fundamentals of reactions related to arynes and the most recent developments in the field.
Author: Reinhard Bruckner
Publisher: Academic Press
ISBN: 9780121381103
Category : Science
Languages : en
Pages : 308
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Book Description
A best-selling mechanistic organic chemistry text in Germany, this text's translation into English fills a long-existing need for a modern, thorough and accessible treatment of reaction mechanisms for students of organic chemistry at the advanced undergraduate and graduate level. Knowledge of reaction mechanisms is essential to all applied areas of organic chemistry; this text fulfills that need by presenting the right material at the right level.
