Overview
- Provides readers with an overview of free-radical chemistry as an environmentally benign synthetic strategy to access heterocycles
- Emphasizes the high bond forming efficiency of using radical cascade and electron-transfer processes
- Highlights the latest developments in use of light and metal-catalysis to trigger single electron transfer (SET) processes
- Covers many different examples including detailed mechanistic insights
Part of the book series: Topics in Heterocyclic Chemistry (TOPICS, volume 54)
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About this book
This volume describes the recent developments in the free-radical mediated synthesis and elaboration of heterocycles. The first chapter, dealing with radical cascade processes illustrates the power and the beauty of radical chemistry with some striking examples of total synthesis of complex natural heterocycles. As organic chemists strive towards sustainability, radical chemistry has recently seen major advances and efforts in this direction, including C-H activation of arenes and unactivated alkyl groups. Photochemical activation, for a long time the preferred mode of activation in radical chemistry has also seen an unexpected revival with the advent of visible light metal- and organocatalyzed photoredox processes. A survey of these emerging areas is provided along with the concepts at the origin of these developments.
The venerable Minisci reaction allows for direct access to functionalized heterocycles. This process has lately seen an interesting renaissance and is discussed in this volume. Addition of heteroatom-centered radicals onto unsaturated systems constitutes another powerful method to construct heterocycles. Examples of such a strategy are proposed along with the formation of various heterocycles relying on homolytic substitution at sulfur, phosphorus and selenium. Additionally free-radical functionalization of reactive functional groups including isonitriles, isothiocyanates and related unsaturated systems which offer a straightforward route towards useful aromatic and non-aromatic heterocycles are discussed. Finally, as metals are able to trigger single electron transfer both in reductive and oxidative modes this provides another possibility for the synthesis of heterocycles. Significant research efforts have focused on the use of samarium, copper and other metals to access a broad variety of heterocycles in a single pot process, starting from readily available raw material. Examples and mechanistic insights are discussed by experts in thisarea.
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Table of contents (8 chapters)
Editors and Affiliations
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Bibliographic Information
Book Title: Free-Radical Synthesis and Functionalization of Heterocycles
Editors: Yannick Landais
Series Title: Topics in Heterocyclic Chemistry
DOI: https://doi.org/10.1007/978-3-319-89521-5
Publisher: Springer Cham
eBook Packages: Chemistry and Materials Science, Chemistry and Material Science (R0)
Copyright Information: Springer International Publishing AG, part of Springer Nature 2018
Hardcover ISBN: 978-3-319-89520-8Published: 14 May 2018
Softcover ISBN: 978-3-030-07792-1Published: 02 February 2019
eBook ISBN: 978-3-319-89521-5Published: 03 May 2018
Series ISSN: 1861-9282
Series E-ISSN: 1861-9290
Edition Number: 1
Number of Pages: VII, 352
Number of Illustrations: 436 b/w illustrations, 18 illustrations in colour
Topics: Organic Chemistry, Catalysis, Green Chemistry