Advancements in Isocyanide Based Multicomponent Reactions

Advancements in Isocyanide Based Multicomponent Reactions PDF Author: Jerry Calhoun Isaacson
Publisher:
ISBN:
Category :
Languages : en
Pages : 422

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Book Description
Isocyanide based multicomponent reactions, including the Ugi four-component and Passerini three-component reactions, offer chemists a powerful tool for quickly constructing complex molecules. A particular form of the Ugi reaction, in which two of the four reacting components are introduced into a single molecule, is useful for synthesizing cyclic products. Using a newly developed convertible isocyanide, known as indole isocyanide, in the Ugi reaction allowed for the mild synthesis of various pyroglutamic acids. This effort led first to a racemic total synthesis of the natural product dysibetaine. A project to achieve the stereoselective synthesis of the same natural product led to the discovery of a unique Ugi reaction. Usually a carboxylic acid is one of the four reacting components in this reaction, however in this unusual case an ester acts as the carboxylic acid component. In addition to the natural product syntheses, a detailed explanation of the scope and mechanism of the new convertible indole isocyanide is presented. Finally, we reveal a new stereoselective, Brønsted-acid catalyzed Passerini-type reaction.

Advancements in Isocyanide Based Multicomponent Reactions

Advancements in Isocyanide Based Multicomponent Reactions PDF Author: Jerry Calhoun Isaacson
Publisher:
ISBN:
Category :
Languages : en
Pages : 422

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Book Description
Isocyanide based multicomponent reactions, including the Ugi four-component and Passerini three-component reactions, offer chemists a powerful tool for quickly constructing complex molecules. A particular form of the Ugi reaction, in which two of the four reacting components are introduced into a single molecule, is useful for synthesizing cyclic products. Using a newly developed convertible isocyanide, known as indole isocyanide, in the Ugi reaction allowed for the mild synthesis of various pyroglutamic acids. This effort led first to a racemic total synthesis of the natural product dysibetaine. A project to achieve the stereoselective synthesis of the same natural product led to the discovery of a unique Ugi reaction. Usually a carboxylic acid is one of the four reacting components in this reaction, however in this unusual case an ester acts as the carboxylic acid component. In addition to the natural product syntheses, a detailed explanation of the scope and mechanism of the new convertible indole isocyanide is presented. Finally, we reveal a new stereoselective, Brønsted-acid catalyzed Passerini-type reaction.

Isocyanide-based Multicomponent Reactions

Isocyanide-based Multicomponent Reactions PDF Author: Jonathan G. Rudick
Publisher: Frontiers Media SA
ISBN: 2889634841
Category :
Languages : en
Pages : 100

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Book Description
This eBook is a collection of articles from a Frontiers Research Topic. Frontiers Research Topics are very popular trademarks of the Frontiers Journals Series: they are collections of at least ten articles, all centered on a particular subject. With their unique mix of varied contributions from Original Research to Review Articles, Frontiers Research Topics unify the most influential researchers, the latest key findings and historical advances in a hot research area! Find out more on how to host your own Frontiers Research Topic or contribute to one as an author by contacting the Frontiers Editorial Office: frontiersin.org/about/contact.

Multicomponent Reactions

Multicomponent Reactions PDF Author: Jieping Zhu
Publisher: John Wiley & Sons
ISBN: 3527604243
Category : Science
Languages : en
Pages : 484

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Book Description
In the very first book on this hot topic, the expert editors andauthors present a comprehensive overview of these elegantreactions. From the contents: Organoboron compounds Free-radical mediated multicomponent coupling reactions Applications in drug discovery Metal catalyzed reactions Total synthesis of natural products Asymmetric isocyanide-based reactions The Biginelli reaction Asymmetric isocyanide-based reactions The Domino-Knoevenagel-Hetero-Diels-Alder Reaction and relatedtransformations Catalytic asymmetric reactions Algorithm based methods for discovering novel reactions Post-condensation modifications of the Passerini and Ugireactions An essential reference for organic and catalytic chemists, andthose working in organometallics both in academia and industry.

From Isocyanide Based Multicomponent Reactions to Heterocyclic Synthesis

From Isocyanide Based Multicomponent Reactions to Heterocyclic Synthesis PDF Author: Patil Pravin
Publisher:
ISBN:
Category :
Languages : en
Pages : 334

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Book Description


Development of Novel Isocyanide Based Multicomponent Reactions

Development of Novel Isocyanide Based Multicomponent Reactions PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Book Description


Development of Nova Isocyanide Based Multicomponent Reactions

Development of Nova Isocyanide Based Multicomponent Reactions PDF Author: R. W. Waller
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Book Description


Development of novel isocyanide based multicomponent reactions

Development of novel isocyanide based multicomponent reactions PDF Author: Robert William Waller
Publisher:
ISBN:
Category :
Languages : en
Pages : 386

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Book Description


Multicomponent Reactions towards Heterocycles

Multicomponent Reactions towards Heterocycles PDF Author: Erik Van der Eycken
Publisher: John Wiley & Sons
ISBN: 3527349081
Category : Science
Languages : en
Pages : 626

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Book Description
Presents a wide-ranging overview of essential topics and recent advances in MCR chemistry Heterocycles are a central component in natural product chemistry, pharmaceuticals, agrochemicals, and material science. New synthetic methodologies integrating the sequencing of multicomponent reactions (MCRs) are today being used for the rapid synthesis of diversified heterocycles in just one step. Multicomponent Reactions towards Heterocycles presents an up-to-date summary MCR chemistry with a focus on the conjugation between modern synthetic methodologies and MCRs. Featuring contributions by leaders in the field, this comprehensive resource highlights applications of MCRs in natural products and intermediate synthesis, discusses current trends and future prospects in MCR chemistry, outlines novel multicomponent procedures, and more. The authors provide the practical information required for designing new reaction strategies and mechanisms, covering topics including MCR-based green synthetic methods, cyclization and cycloaddition reactions, heterocycle multicomponent syntheses in a continuous flow, catalytic alkynoyl generation, MCR synthesis of saturated heterocycles, and C–H functionalization and multicomponent reactions. Provides a thorough overview of heterocycles as input in multicomponent reactions Discusses recent advances in the field of MCR chemistry and progress in the synthesis and functionalization of heterocycles Demonstrates the use of MCRs to simplify synthetic design and achieve complexity and diversity in novel bioactive molecules Highlights examples of multicomponent polymerizations, target-oriented synthesis, and applications of MCR in medicinal chemistry Explains the methodology of using on-resin MCRs to produce heterocycle compounds Illustrating the key role of MCRs towards heterocycles in natural product synthesis, drug discovery, organic synthesis, and other applications, Multicomponent Reactions towards Heterocycles is required reading for synthetic chemists in academia and industry alike.

Isocyanide Chemistry

Isocyanide Chemistry PDF Author: V. Nenajdenko
Publisher: John Wiley & Sons
ISBN: 3527652558
Category : Science
Languages : en
Pages : 615

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Book Description
The efficacy of isocyanide reactions in the synthesis of natural or naturallike products has resulted in a renaissance of isocyanide chemistry. Now isocyanides are widely used in different branches of organic, inorganic, coordination, combinatorial and medicinal chemistry. This invaluable reference is the only book to cover the topic in such depth, presenting all aspects of synthetic isonitrile chemistry. The highly experienced and internationally renowned editor has brought together an equally distinguished team of authors who cover multicomponent reactions, isonitriles in total synthesis, isonitriles in polymer chemistry and much more.

Multi-component Reactions in Molecular Diversity

Multi-component Reactions in Molecular Diversity PDF Author: Jean-Philippe Goddard
Publisher: John Wiley & Sons
ISBN: 1786305119
Category : Science
Languages : en
Pages : 198

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Book Description
While very useful for studying syntheses of molecular diversity, multi-component reactions also offer rapid access to a variety of complex molecules that are relevant for biological applications. Multi-component Reactions in Molecular Diversity analyzes these reactions, whether they are realized by organometallic, ionic or even radical processes. It highlights popular methods based on monotype reactions (cascade, tandem, domino) and their efficiency and academic industrial domain are illustrated. This book also investigates the most efficient ways to prepare complex molecules. Multi-component reactions are in tune with the concepts of atom and steps economy, which are of prior importance in all the reported processes ? from the laboratory to the pilot scale. The essential criteria for green chemistry are also examined in the book in detail.