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Topics In Nonbenzenoid Aromatic Chemistry
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Book Synopsis The Chemistry of Nonbenzenoid Aromatic Compounds — II by : R. Kreher
Download or read book The Chemistry of Nonbenzenoid Aromatic Compounds — II written by R. Kreher and published by Butterworth-Heinemann. This book was released on 2013-10-22 with total page 265 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Chemistry of Nonbenzenoid Aromatic Compounds — II is a collection of plenary lectures presented at the Second International Symposium on the Chemistry of Nonbenzenoid Aromatic Compounds. Starting with a review of the synthesis and study of select heterocycles, the book includes results and developments in this area. A significant part of the reviews of nonbenzenoid aromatic compounds is the examination of annulenese that contain larger Huckel systems than benzene. The demand for better synthetic methods in the study has increased as bridged annulenes have been made for suitable models of testing theoretical concepts. Early studies on some nonbenzenoid aromatic compounds and the related problems are also discussed. A description of the syntheses of several polycyclic systems that contain potential cyclobutadiene rings follows. Studies are made on 8-oxoheptafulvene chemistry after earlier chemical and physical examination of heptafulvene and related compounds provided avenues for research. Some aspects of strained systems, [4]annulene and its Ch+adduct are reviewed in terms of usefulness when applying a theoretical guide, proving the calculations and experiments. Studies on higher membered annulenyl ions belonging to five groups are also discussed. Research chemists, students, and professors in chemistry and related fields such as organic chemistry will find this collection useful.
Book Synopsis Nonbenzenoid Aromatics by : James P. Snyder
Download or read book Nonbenzenoid Aromatics written by James P. Snyder and published by Elsevier. This book was released on 2013-10-22 with total page 449 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nonbenzenoid Aromatics, Volume II, provides an overview of the state of knowledge in the field of non-benzenoid aromatic compounds. The theme that threads its way through the six chapters is that of ""aromaticity,"" with each author making an effort to evaluate this concept in light of his own work. It is with this in mind that this treatise was initiated with an historical account tracing the development of the idea up to the discovery of the electron. The book begins with discussions of the estimation of the thermochemical and kinetic stability of a system which has not yet been synthesized and the calculation of electronic spectra. This is followed by separate chapters on the electron spin resonance (ESR) spectra of radical ions of nonbenzenoid aromatics; the theoretical and empirical bases of exaltation; and treatment of cyclic (4n + 2) p-electron systems with six or more p-electrons and bearing one or more formal charges. Subsequent chapters deal with the chemical binding and delocalization in phosphonitrilic derivatives, and cyclobutadiene-metal complexes.
Book Synopsis Topics in Nonbenzenoid Aromatic Chemistry by :
Download or read book Topics in Nonbenzenoid Aromatic Chemistry written by and published by . This book was released on 1974 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Topics in Nonbenzenoid Aromatic Chemistry by : Tetsuo Nozoe
Download or read book Topics in Nonbenzenoid Aromatic Chemistry written by Tetsuo Nozoe and published by John Wiley & Sons. This book was released on 1974 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Chemistry of Nonbenzenoid Aromatic Compounds II by :
Download or read book The Chemistry of Nonbenzenoid Aromatic Compounds II written by and published by . This book was released on 1975 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Carbocyclic Non-benzenoid Aromatic Compounds by : Douglas Lloyd
Download or read book Carbocyclic Non-benzenoid Aromatic Compounds written by Douglas Lloyd and published by . This book was released on 1966 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Textbook of Organic Chemistry – Volume 1 by : Mandeep Dalal
Download or read book A Textbook of Organic Chemistry – Volume 1 written by Mandeep Dalal and published by Dalal Institute. This book was released on 2019-01-01 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: An advanced-level textbook of organic chemistry for the graduate (B.Sc) and postgraduate (M.Sc) students of Indian and foreign universities. This book is a part of the four-volume series, entitled “A Textbook of Organic Chemistry – Volume I, II, III, IV”. CONTENTS: CHAPTER 1. Nature of Bonding in Organic molecules: Delocalized Chemical Bonding; Conjugation; Cross Conjugation; Resonance; Hyperconjugation; Tautomerism; Aromaticity in Benzenoid and Nonbenzenoid Compounds; Alternant and Non-Alternant Hydrocarbons; Huckel’s Rule: Energy Level of p-Molecular Orbitals; Annulenes; Antiaromaticity; Homo-Aromaticity; PMO Approach; Bonds Weaker than Covalent; Addition Compounds: Crown Ether Complexes and Cryptands, Inclusion Compounds, Cyclodextrins; Catenanes and Rotaxanes CHAPTER 2. Stereochemistry: Chirality; Elements of symmetry; Molecules with more than one chiral centre: diastereomerism; Determination of relative and absolute configuration (octant rule excluded) with special reference to lactic acid, alanine & mandelic acid; Methods of resolution; Optical purity; Prochirality; Enantiotopic and diastereotopic atoms, groups and faces; Asymmetric synthesis: cram’s rule and its modifications, prelog’s rule; Conformational analysis of cycloalkanes (upto six membered rings); Decalins; Conformations of sugars; Optical activity in absence of chiral carbon (biphenyls, allenes and spiranes); Chirality due to helical shape; Geometrical isomerism in alkenes and oximes; Methods of determining the configuration CHAPTER 3. Reaction Mechanism: Structure and Reactivity: Types of mechanisms; Types of reactions; Thermodynamic and kinetic requirements; Kinetic and thermodynamic control; Hammond’s postulate; Curtin-Hammett principle; Potential energy diagrams: Transition states and intermediates; Methods of determining mechanisms; Isotope effects; Hard and soft acids and bases; Generation, structure, stability and reactivity of carbocations, carbanions, free radicals, carbenes and nitrenes; Effect of structure on reactivity; The Hammett equation and linear free energy relationship; Substituent and reaction constants; Taft equation CHAPTER 4. Carbohydrates: Types of naturally occurring sugars; Deoxy sugars; Amino sugars; Branch chain sugars; General methods of determination of structure and ring size of sugars with particular reference to maltose, lactose, sucrose, starch and cellulose. CHAPTER 5. Natural and Synthetic Dyes: Various classes of synthetic dyes including heterocyclic dyes; Interaction between dyes and fibers; Structure elucidation of indigo and Alizarin CHAPTER 6. Aliphatic Nucleophilic Substtitution: The SN2, SN1, mixed SN1 and SN2, SNi , SN1’, SN2’, SNi’ and SET mechanisms; The neighbouring group mechanisms; neighbouring group participation by p and s bonds; anchimeric assistance; Classical and nonclassical carbocations; Phenonium ions; Common carbocation rearrangements; Applications of NMR spectroscopy in the detection of carbocations; Reactivity- effects of substrate structure, attacking nucleophile, leaving group and reaction medium; Ambident nucleophiles and regioselectivity; Phase transfer catalysis. CHAPTER 7. Aliphatic Electrophilic Substitution: Bimolecular mechanisms – SE2 and SEi; The SE1 mechanism; Electrophilic substitution accompained by double bond shifts; Effect of substrates, leaving group and the solvent polarity on the reactivity CHAPTER 8. Aromatic Electrophilic Substitution: The arenium ion: mechanism, orientation and reactivity, energy profile diagrams; The ortho/para ratio, ipso attack, orientation in other ring systems; Quantitative treatment of reactivity in substrates and electrophiles; Diazonium coupling; Vilsmeir reaction; Gattermann-Koch reaction CHAPTER 9. Aromatic Nucleophilic Substitution: The ArSN1, ArSN2, Benzyne and SRN1 mechanisms; Reactivity – effect of substrate structure, leaving group and attacking nucleophile; The von Richter, Sommelet-Hauser, and Smiles rearrangements CHAPTER 10. Elimination Reactions: The E2, E1 and E1cB mechanisms; Orientation of the double bond; Reactivity –effects of substrate structures, attacking base, the leaving group and the medium; Mechanism and orientation in pyrolytic elimination CHAPTER 11. Addition to Carbon-Carbon Multiple Bonds: Mechanistic and stereochemical aspects of addition reactions involving electrophiles, nucleophiles and free radicals; Regio–and chemoselectivity: orientation and reactivity; Addition to cyclopropane ring; Hydrogenation of double and triple bonds; Hydrogenation of aromatic rings; Hydroboration; Michael reaction; Sharpless asymmetric epoxidation. CHAPTER 12. Addition to Carbon-Hetero Multiple Bonds: Mechanism of metal hydride reduction of saturated and unsaturated carbonyl compounds, acids, esters and nitriles; Addition of Grignard reagents, organozinc and organolithium; Reagents to carbonyl and unsaturated carbonyl compounds; Wittig reaction; Mechanism of condensation reactions involving enolates – Aldol, Knoevenagel, Claisen, Mannich, Benzoin, Perkin and Stobbe reactions; Hydrolysis of esters and amides; Ammonolysis of esters.
Book Synopsis Aromatic and Heteroaromatic Chemistry by : C W Bird
Download or read book Aromatic and Heteroaromatic Chemistry written by C W Bird and published by Royal Society of Chemistry. This book was released on 2007-10-31 with total page 530 pages. Available in PDF, EPUB and Kindle. Book excerpt: Specialist Periodical Reports provide systematic and detailed review coverage of progress in the major areas of chemical research. Written by experts in their specialist fields the series creates a unique service for the active research chemist, supplying regular critical in-depth accounts of progress in particular areas of chemistry. For over 80 years the Royal Society of Chemistry and its predecessor, the Chemical Society, have been publishing reports charting developments in chemistry, which originally took the form of Annual Reports. However, by 1967 the whole spectrum of chemistry could no longer be contained within one volume and the series Specialist Periodical Reports was born. The Annual Reports themselves still existed but were divided into two, and subsequently three, volumes covering Inorganic, Organic and Physical Chemistry. For more general coverage of the highlights in chemistry they remain a 'must'. Since that time the SPR series has altered according to the fluctuating degree of activity in various fields of chemistry. Some titles have remained unchanged, while others have altered their emphasis along with their titles; some have been combined under a new name whereas others have had to be discontinued.
Book Synopsis Current Topics in Organic Chemistry by : Louis Frederick Fieser
Download or read book Current Topics in Organic Chemistry written by Louis Frederick Fieser and published by . This book was released on 1964 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aliphatics; Alicyclics; Benzenoid aromatics; Nonbenzenoid aromatics; Carbohydrates; Lipids; Proteins; Polycyclic hydrocarbons; Heterocyclic aromatics; Alkaloids; Terpenoids; steroids; Vitamins; Chemotherapy; Synthetic polymers.
Book Synopsis Chemical Graph Theory by : Nenad Trinajstic
Download or read book Chemical Graph Theory written by Nenad Trinajstic and published by CRC Press. This book was released on 2018-05-11 with total page 343 pages. Available in PDF, EPUB and Kindle. Book excerpt: New Edition! Completely Revised and Updated Chemical Graph Theory, 2nd Edition is a completely revised and updated edition of a highly regarded book that has been widely used since its publication in 1983. This unique book offers a basic introduction to the handling of molecular graphs - mathematical diagrams representing molecular structures. Using mathematics well within the vocabulary of most chemists, this volume elucidates the structural aspects of chemical graph theory: (1) the relationship between chemical and graph-theoretical terminology, elements of graph theory, and graph-theoretical matrices; (2) the topological aspects of the Hückel theory, resonance theory, and theories of aromaticity; and (3) the applications of chemical graph theory to structure-property and structure-activity relationships and to isomer enumeration. An extensive bibliography covering the most relevant advances in theory and applications is one of the book's most valuable features. This volume is intended to introduce the entire chemistry community to the applications of graph theory and will be of particular interest to theoretical organic and inorganic chemists, physical scientists, computational chemists, and those already involved in mathematical chemistry.
Book Synopsis The Chemistry of Nonbenzenoid Aromatic Compounds, II by :
Download or read book The Chemistry of Nonbenzenoid Aromatic Compounds, II written by and published by . This book was released on 1974 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Chemistry of the Nonbenzenoid Hydrocarbons by : Benjamin Talbott Brooks
Download or read book The Chemistry of the Nonbenzenoid Hydrocarbons written by Benjamin Talbott Brooks and published by . This book was released on 1950 with total page 640 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Chemical Graph Theory by : D Bonchev
Download or read book Chemical Graph Theory written by D Bonchev and published by Routledge. This book was released on 2018-05-11 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume presents the fundamentals of graph theory and then goes on to discuss specific chemical applications. Chapter 1 provides a historical setting for the current upsurge of interest in chemical graph theory. Chapter 2 gives a full background of the basic ideas and mathematical formalism of graph theory and includes such chemically relevant notions as connectedness, graph matrix representations, metric properties, symmetry and operations on graphs. This is followed by a discussion on chemical nomenclature and the trends in its rationalization by using graph theory, which has important implications for the storage and retrieval of chemical information. This volume also contains a detailed discussion of the relevance of graph-theoretical polynomials; it describes methodologies for the enumeration of isomers, incorporating the classical Polya method, as well as more recent approaches.
Book Synopsis Aromatic Character and Aromaticity by : G. M. Badger
Download or read book Aromatic Character and Aromaticity written by G. M. Badger and published by Cambridge University Press. This book was released on 1969-01-02 with total page 141 pages. Available in PDF, EPUB and Kindle. Book excerpt: Originally published in 1969, this book analyses the special properties of benzene and its derivatives, which give them their distinct aromatic character. The text first discusses the structure of benzene, including the light shed on it by physical methods and wave mechanics, and the structure of polycyclic benzenoid hydrocarbons and heterocyclic aromatic compounds. Aromaticity is defined as a function of the electronic structure of the molecule or ion in question and it is shown that this has important consequences in respect of bond lengths, resonance energies, electronic absorption spectra and induced ring currents. Final chapters discuss how far aromatic character and aromaticity are associated with non-benzenoid hydrocarbons and with more complex systems.
Book Synopsis Aromatic Chemistry by : John D. Hepworth
Download or read book Aromatic Chemistry written by John D. Hepworth and published by Wiley-RSC. This book was released on 2002 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt: This product is not available separately, it is only sold as part of a set. There are 750 products in the set and these are all sold as one entity. This book provides an up-to-date and comprehensive account of aromatic chemistry. A series of chapters describes the synthesis and reactions of the major functional derivatives of benzene and the more common polycyclic systems. The concept of aromaticity and the mechanism of aromatic substitution are discussed, as is the use of metals in the synthesis of aromatic compounds. Throughout, emphasis is placed on mechanisms. Worked problems and questions are provided to aid understanding. In addition to providing material required by an undergraduate studying chemistry, Aromatic Chemistry is also ideal for industrial chemists seeking to update their knowledge of this important aspect of chemistry. Ideal for the needs of undergraduate chemistry students, Tutorial Chemistry Texts is a major new series consisting of short, single topic or modular texts concentrating on the fundamental areas of chemistry taught in undergraduate science courses. Each book provides a concise account of the basic principles underlying a given subject, embodying an independent-learning philosophy and including worked examples.
Download or read book Aliphatic Chemistry written by A McKillop and published by Royal Society of Chemistry. This book was released on 2007-10-31 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: Specialist Periodical Reports provide systematic and detailed review coverage of progress in the major areas of chemical research. Written by experts in their specialist fields the series creates a unique service for the active research chemist, supplying regular critical in-depth accounts of progress in particular areas of chemistry. For over 80 years the Royal Society of Chemistry and its predecessor, the Chemical Society, have been publishing reports charting developments in chemistry, which originally took the form of Annual Reports. However, by 1967 the whole spectrum of chemistry could no longer be contained within one volume and the series Specialist Periodical Reports was born. The Annual Reports themselves still existed but were divided into two, and subsequently three, volumes covering Inorganic, Organic and Physical Chemistry. For more general coverage of the highlights in chemistry they remain a 'must'. Since that time the SPR series has altered according to the fluctuating degree of activity in various fields of chemistry. Some titles have remained unchanged, while others have altered their emphasis along with their titles; some have been combined under a new name whereas others have had to be discontinued.
Book Synopsis Aromatic Chemistry by : Malcolm Sainsbury
Download or read book Aromatic Chemistry written by Malcolm Sainsbury and published by . This book was released on 2008 with total page 91 pages. Available in PDF, EPUB and Kindle. Book excerpt: All the basic principles of this important topic are clearly presented here in an account which takes as examples many compounds of industrial and biological significance. Consideration is given to the structure, reactions, and properties of benzene and classes of aromatic compounds derived from it, and topics such as thermodynamic versus kinetic control and pericyclic reactions are introduced. The text also covers polycyclic arenes and the small and large ring systems which are embraced by the wider definition of aromaticity.
