An Introduction to the Chemistry of Benzenoid Compounds PDF Download
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Author: Muriel Tomlinson
Publisher: Elsevier
ISBN: 1483280241
Category : Science
Languages : en
Pages : 218
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Book Description
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.
Author: Muriel Tomlinson
Publisher: Elsevier
ISBN: 1483280241
Category : Science
Languages : en
Pages : 218
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Book Description
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.
Author: Ivan Gutman
Publisher: Springer Science & Business Media
ISBN: 3642871437
Category : Science
Languages : en
Pages : 157
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Book Description
In the last hundred years benzenoid hydrocarbons have constantly attracted the attention of both experimental and theoretical chemists. In spite of the fact that some of the basic concepts of the theory of benzenoid hydrocarbons have their origins in the 19th and early 20th century, research in this area is still in vigorous expansion. The present book provides an outline of the most important current theoretical approaches to benzenoids. Emphasis is laid on the recent developments of these theories, which can certainly be characterized as a significant advance. Em phasis is also laid on practical applications rather than on "pure" theory. The book assumes only some elementary knowledge of organic and physical chemistry and requires no special mathematical training. Therefore we hope that undergraduate students of chemistry will be able to follow the text without any difficulty. Since organic and physical chemists are nowadays not properly acquaint ed lVith the modern theory of benzenoid molecules, we hope that they will find this book both useful and informative. Our book is also aimed at theoretical chemists, especially those concerned with the "topological" features of organic molecules. The authors are indebted to Dr. WERNER SCHMIDT (Ahrensburg, FRG) for valuable discussions. One of the authors (1. G.) thanks the Royal Norwegian Council for Scientific and Industrial Research for financial support during 1988, which enabled him to stay at the University of Trondheim and write the present book. Trondheim, July 1989 Ivan Gutman Sven J. Cyvin Contents Chapter 1 Benzenoid Hydrocarbons .
Author: Mandeep Dalal
Publisher: Dalal Institute
ISBN: 8195242731
Category : Science
Languages : en
Pages : 450
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Book Description
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 Substitution: 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.
Author: Ernst T. Theimer
Publisher: Elsevier
ISBN: 0323138608
Category : Technology & Engineering
Languages : en
Pages : 649
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Book Description
This book has been prepared as an introduction to the chemistry of odorous molecules. While there exist a number of works of an encyclopedic nature which cover this field, there is none which treats the subjectin an instructional fashion. To fill this gap, a group of scientists, types from the chemical point of view, to present to the reader the panorama of those molecules that stimulate the sense of smell. To make the picture complete, the chapters that are strictly chemical in content are preceded by several that introduce the topics of the physiology of the olfactory system, the current hypotheses on the mechanism of the sense of smell, and the structure-odor relationships in odorous molecules. There is also a treatment of analytical techniques which have become important to fragrance chemical research and testing.
Author: Hans Thacher Clarke
Publisher:
ISBN:
Category : Chemistry, Organic
Languages : en
Pages : 504
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Book Description
Author: P. W. G. Smith
Publisher: Elsevier
ISBN: 1483139069
Category : Science
Languages : en
Pages : 238
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Book Description
Organic Chemistry for General Degree Students is written to meet the requirements of the London General Internal examination and degree examinations of a similar standing. It will also provide for the needs of students taking the Part 1 examination for Graduate Membership of the Royal Institute of Chemistry, or the Higher National Certificate, whilst the treatment is such that Ordinary National Certificate courses can be based on the first two volumes Within the limits broadly defined by the syllabus, the aim of this first volume is to provide a concise summary of the important general methods of preparation and properties of the main classes of aliphatic compounds. Due attention is paid to practical considerations with particular reference to important industrial processes. At the same time, the fundamental theoretical principles of organic chemistry are illustrated by the discussion of a selection of the more important reaction mechanisms. Questions and problems are included, designed to test the student's appreciation of the subject and his ability to apply the principles embodied therein. A selection of questions set in the relevant examinations is also included.
Author: Erich Clar
Publisher: John Wiley & Sons
ISBN:
Category : Science
Languages : en
Pages : 144
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Book Description
Author:
Publisher: Krishna Prakashan Media
ISBN: 9788187224655
Category :
Languages : en
Pages : 1012
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Book Description
Author: Qian Miao
Publisher: John Wiley & Sons
ISBN: 3527338470
Category : Science
Languages : en
Pages : 356
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Book Description
The first book of its kind to focus on the chemistry of this promising class of molecules. Edited by an innovator in the field, who has gathered an international team of well-established experts, this is a comprehensive overview of the rapidly developing field of polycyclic (hetero)arenes, specifically highlighting on their molecular design and the latest synthetic procedures, as well as chemical and physical properties. Each chapter is dedicated to a specific compound class, the first eight covering polycyclic arenes, including both planar and non-planar conjugated molecules, while chapters nine to twelve deal with polycylic heteroarenes according to the heteroatoms, namely N, B, S and P. Important current and emergent applications in the field are also discussed, ranging from molecular sensors to electronic devices. The result is an essential reference for researchers in synthetic and physical organic chemistry, supramolecular chemistry, and materials science.
Author: Marelene Rayner-canham
Publisher: World Scientific
ISBN: 1786347709
Category : Science
Languages : en
Pages : 602
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Book Description
'The book neatly illuminates a forgotten history of female chemists — and this is not an overstatement. It contains a multitude of names, events and socio-economic interactions in the pursuit of women's education and professional emancipation that are guaranteed to contain stories that readers will not have heard before … It is easily a dip-in and dip-out type of read, allowing simple navigation to specific areas of Britain, disciplines and professions … Besides highlighting the women who fought against an inherently male-dominated system and celebrating their supporters, this book also examines the events and the history surrounding their lives and endeavours. It pays particular note to the nations of the British Isles and gives equal contribution to those lost in history as to those names we are all so familiar with. A fantastic resource that has been excellently researched, I am sure it will remain an ageless tribute and reference work.'Education in ChemistryHistorically, British chemistry has been perceived as a solely male endeavour. However, this perception is untrue: the allure of chemistry has attracted British women for centuries past. In this new book, the authors trace the story of women's fascination with chemistry back to the amateur women chemists of the late 1500s. From the 1880s, pioneering academic girls' schools provided the knowledge base and enthusiasm to enable their graduates to enter chemistry degree programs at university. The ensuing stream of women chemistry graduates made interesting and significant contributions to their fields, yet they have been absent from the historical record.In addition to the broad picture, the authors focus upon the life and contributions of some of the individual women chemists who were determined to survive and flourish in their chosen field. From secondary school to university to industry, some of the women chemists expressed their sentiments and enthusiasm in chemistry verse. Examples of their poetic efforts are sprinkled throughout to give a unifying theme from grade school to university and industrial employment. This book provides a well-researched glimpse into the forgotten world of British women in chemistry up to the 1930s and 1940s.
