Heterocyclic Mesomeric Betaines and Mesoionic Compounds

Heterocyclic Mesomeric Betaines and Mesoionic Compounds

1st Edition - March 16, 2022

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  • Editor: Christopher Ramsden
  • eBook ISBN: 9780323988629
  • Hardcover ISBN: 9780323988612

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Description

Heterocyclic Mesomeric Betaines and Mesoionic Compounds, Volume 137 in the Advances in Heterocyclic Chemistry series, highlights new advances in the field, with this new volume presenting interesting chapters on a variety of topics, including Heterocyclic Mesomeric Betaines, Type A Mesoionic Compounds (1980-2020), Type B Mesoionic Compounds (1980-2020), Recent Developments in the Chemistry of Heteroporphyrins, Carbaporphyrins and Related Systems, Heterocyclic Zwitterions Based on Coupled Polymethines, Meso-ionic Compounds reproduced from Adv. Heterocycl. Chem. 1976, 19, 1-122., and Meso-ionic Heterocycles (1976-1980) reproduced from Tetrahedron, 1982, 38, 2965-3011.

Key Features

  • Provides the authority and expertise of leading contributors from an international board of authors
  • Presents the latest release in Advances in Heterocyclic Chemistry series
  • Updated release includes the latest information on Betaine

Readership

Academic, government and industrial sectors

Table of Contents

  • Cover image
  • Title Page
  • Table of Contents
  • Copyright
  • Contributors
  • Preface
  • Chapter One: Heterocyclic mesomeric betaines: An overview
  • Abstract
  • 1: Introduction and history
  • 2: Heterocyclic mesomeric betaines with two 2π heteroatoms (X¨ and Y¨)—The common thread
  • 3: Conjugated heterocyclic mesomeric betaines (Class 1)—The three types
  • 4: Cross-conjugated heterocyclic mesomeric betaines (Class 2)—Another three types
  • 5: Semi-conjugated heterocyclic mesomeric betaines (Class 3)
  • 6: The curse of pseudo-cross-conjugation
  • 7: Heterocyclic mesomeric betaines with one 2π heteroatom (X¨)
  • 8: Conclusions
  • References
  • Chapter Two: Developments in the chemistry of 1,3a,6a-triazapentalenes and their fused analogs
  • Abstract
  • 1: Introduction
  • 2: Bicyclic 1,3a,6a-triazapentalene
  • 3: Monobenzo-fused 1,3a,6a-triazapentalenes
  • 4: Dibenzo-fused 1,3a,6a-triazapentalenes
  • 5: Heteroaryl-fused 1,3a,6a-triazapentalenes
  • 6: Miscellaneous products having nonconjugated 1,3a,6a-triazapentalene structures
  • 7: Conclusions
  • References
  • Chapter Three: Type A mesoionic compounds (1980–2020)
  • Abstract
  • 1: Introduction
  • 2: Type A and type B mesoionic heterocycles
  • 3: The relationship of mesoionic heterocycles to other heterocyclic mesomeric betaines (HMBs)
  • 4: Type A mesoionic systems—An overview
  • 5: The chemistry of type A mesoionic compounds
  • 6: Conclusions
  • References
  • Chapter Four: Type B mesoionic compounds (1980–2020)
  • Abstract
  • 1: Introduction
  • 2: The classification of type B mesoionic heterocycles as semi-conjugated HMBs
  • 3: Type B mesoionic heterocycles—An overview
  • 4: The chemistry of type B mesoionic compounds
  • 5: Conclusions
  • References
  • Appendix 1 (Reprinted from Ollis, W.D.; Ramsden, C.A. Adv. Heterocycl. Chem. 1976, 19, 1.)
  • Chapter Five: Meso-ionic compounds
  • Abstract
  • 1: Introduction
  • 2: The representation of meso-ionic heterocycles
  • 3: The two types of five-membered meso-ionic heterocycles
  • 4: Five-membered meso-ionic heterocycles of type A
  • 5: Five-membered meso-ionic heterocycles of type B
  • 6: The valence tautomerism of five-membered meso-ionic compounds of type A and type B
  • 7: The chemistry of meso-ionic compounds of type A
  • 8: The existence and interconversion of type A meso-ionic isomers
  • 9: Photochemistry of type A meso-ionic heterocycles
  • 10: The chemistry of meso-ionic compounds of type B
  • 11: The physical study and theoretical treatment of meso-ionic compounds
  • 12: Pharmacological activity of meso-ionic compounds
  • 13: Meso-ionic: Definition and delineation
  • References
  • Appendix 2 (Reprinted from Newton, C.G.; Ramsden, C.A. Tetrahedron 1982, 38, 2965.)
  • Chapter Six: Meso-ionic heterocycles (1976–1980)
  • Abstract
  • 1: Introduction
  • 2: Meso-ionic compounds of types A and B
  • 3: The chemistry of meso-ionic compounds of type A (1976–1980)
  • 4: The chemistry of meso-ionic compounds of type B (1976–1980)
  • 5: Conclusion
  • References
  • Index

Product details

  • No. of pages: 452
  • Language: English
  • Copyright: © Academic Press 2022
  • Published: March 16, 2022
  • Imprint: Academic Press
  • eBook ISBN: 9780323988629
  • Hardcover ISBN: 9780323988612

About the Series Volume Editor

Christopher Ramsden

Chris Ramsden was born in Manchester, UK in 1946. He is a graduate of Sheffield University and received his PhD in 1970 for a thesis entitled ‘Meso-ionic Compounds’ (W. D. Ollis) and a DSc in 1990. Subsequently he was a Robert A. Welch Postdoctoral Fellow at the University of Texas (with M. J. S. Dewar)(1971-3), working on the development and application of semi-empirical MO methods, and an ICI Postdoctoral Fellow at the University of East Anglia (with A. R. Katritzky)(1973-6), working on the synthesis of novel heterocycles. In 1976 he moved to the pharmaceutical industry and was Head of Medicinal Chemistry (1986-1992) at Rhone-Poulenc, London. He moved to Keele University as Professor of Organic Chemistry in 1992, where he is now Emeritus Professor. His research interests include the structure and preparation of novel heterocycles, three-centre bonding in the context of the chemistry of betaines and hypervalent species, and the properties of the enzyme tyrosinase and related ortho-quinone chemistry. He was an Editor-in-Chief of ‘Comprehensive Heterocyclic Chemistry III’ and a co-author of ‘The Handbook of Heterocyclic Chemistry, 3rd Edn, 2010.

Affiliations and Expertise

Professor of Organic Chemistry, Keele University, Staffordshire, UK

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