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The Chemistry Of Nonbenzenoid Aromatic Compounds Ii
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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 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 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 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 An Introduction to the Chemistry of Benzenoid Compounds by : Muriel Tomlinson
Download or read book An Introduction to the Chemistry of Benzenoid Compounds written by Muriel Tomlinson and published by Elsevier. This book was released on 2016-07-29 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt: An Introduction to the Chemistry of Benzenoid Compounds is an introductory text to some chemical aspects of benzenoid compounds. This book is composed of 13 chapters that specifically cover the sources, properties, and reactions of these compounds. The opening chapters describe the structural aspects of benzenoid compounds, including their homologues, isomers, and aromaticity. The subsequent chapters deal with the disubstitution and addition reactions of the benzene nucleus. Considerable chapters are devoted to the synthesis of benzenoid derivatives, such as aromatic halides, nitro-compounds, carbonyl compounds, acids, and amines, phenols, alcohols, and naphthalene. The final chapter introduces the chemistry of anthracene, phenanthrene, and polycyclic aromatic hydrocarbons. This book is of value to organic chemistry students.
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 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 The Chemistry of the Non-benzenoid Hydrocarbons and Their Simple Derivatives by : Benjamin Talbott Brooks
Download or read book The Chemistry of the Non-benzenoid Hydrocarbons and Their Simple Derivatives written by Benjamin Talbott Brooks and published by . This book was released on 1922 with total page 618 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 . This book was released on 1974 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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.
Download or read book Aromaticity written by Peter J. Garratt and published by Wiley-Interscience. This book was released on 1986-04-25 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: Examines aromaticity through the historical and conceptual framework of simple molecular orbital theory. This approach is unique in that theoretical considerations are integrated with experimental observations. The criteria for aromatic, antiaromatic and nonaromatic compounds are discussed in with reference to benzene, cyclobutadiene and cyclooctatetraene. Also includes a chapter on the likely classes of aromatic compounds.
Book Synopsis Non-benzenoid Conjugated Carbocyclic Compounds by : Douglas Lloyd
Download or read book Non-benzenoid Conjugated Carbocyclic Compounds written by Douglas Lloyd and published by Elsevier Science & Technology. This book was released on 1984 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis NEET/JEE (Main) 2023 Chemistry Volume-II by : YCT Expert Team
Download or read book NEET/JEE (Main) 2023 Chemistry Volume-II written by YCT Expert Team and published by YOUTH COMPETITION TIMES. This book was released on with total page 1472 pages. Available in PDF, EPUB and Kindle. Book excerpt: NEET/JEE (Main) 2023 Chemistry Volume-II Previous Years Chapter-wise Objective Solved Papers
Book Synopsis Aromatic Chemistry by : John D. Hepworth
Download or read book Aromatic Chemistry written by John D. Hepworth and published by Royal Society of Chemistry. This book was released on 2002 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides material required by undergraduate students and is also ideal for industrial chemists seeking to update their knowledge of this important aspect of chemistry.
Book Synopsis NCERT Chemistry Class 11 - [CBSE Board] by : Dr. S. C. Rastogi,
Download or read book NCERT Chemistry Class 11 - [CBSE Board] written by Dr. S. C. Rastogi, and published by SBPD Publications . This book was released on 2022-10-11 with total page 955 pages. Available in PDF, EPUB and Kindle. Book excerpt: Syllabus : Unit I : Some Basic Concepts of Chemistry, Unit II : Structure of Atom, Unit III : Classification of Elements and Periodicity in Properties,Unit IV : Chemical Bonding and Molecular Structure, Unit V : States of Matter : Gases and Liquids, Unit VI : Chemical Thermodynamics, Unit VII : Equilibrium, Unit VIII : Redox Reactions, Unit IX : Hydrogen, Unit X : s-Block Elements (Alkali and Alkaline earth metals) Group 1 and Group 2 Elements, Unit XI : Some p-Block Elements General Introduction to p-Block Elements, Unit XII : Organic Chemistry—Some Basic Principles and Techniques, Unit XIII : Hydrocarbons Classification of Hydrocarbons, Unit XIV : Environmental Chemistry Content : 1. Some Basic Concepts of Chemistry, 2. Structure of Atom, 3. Classification of Elements and Periodicity in Properties, 4. Chemical Bonding and Molecular Structure, 5. States of Matter, 6. Thermodynamics, 7. Equilibrium, 8. Redox Reactions, 9. Hydrogen, 10. s-Block Elements 11. p-Block Elements, 12. Organic Chemistry—Some Basic Principles and Techniques 13. Hydrocarbons 14. Environmental Chemistry I. Appendix II. Log-antilog Table
Book Synopsis Alicyclic Chemistry by : V.K. Ahluwalia
Download or read book Alicyclic Chemistry written by V.K. Ahluwalia and published by Springer Nature. This book was released on 2023-08-06 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt: This textbook is intended for undergraduate and postgraduate students in organic chemistry. It describes the synthesis and properties of cycloalkanes compounds such as cyclopropane, cyclobutane, cyclopentane, cyclohexane, cycloheptane and cycloheptatriene. It further covers the chemistry of ring compounds. The book also covers the reaction mechanisms of non-benzenoid aromatic compounds including annulenes, metallocenes and azulenes. It further contains discussions on tropone, tropolones, fluxional molecules, catenanes and rotaxanes. End-of-chapter exercises such as multiple-choice questions and short answer-questions help students in self-learning. This textbook is useful for undergraduate and postgraduate students in organic chemistry.
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