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Author: Henri Ulrich
Publisher: Elsevier
ISBN: 0323162762
Category : Science
Languages : en
Pages : 375
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Book Description
Cycloaddition Reactions of Heterocumulenes reviews cycloaddition reactions, particularly on hetercocumulenes having "four-electron" bonds. This book discusses the chemical relationship among the various classes of heterocumulenes, including their chemical reactivity which ranges from highly reactive species to nearly inert compounds. This text also investigates the nucleophilic reactions of ketenes and isocyanates with suitable substrates, and if possible, correlates available data with the reactivity of these species in cycloaddition reactions. This book also investigates the cycloaddition reactions of carbon suboxide and other aspects of its chemistry due to the presence of many other interrelated reactions. The synthetic organic chemist should also investigate the application of isocyanate reactions associated with the cumulative double bonds. This text investigates carbodiimides as useful reagents for peptide synthesis, and notes that the stability of carbodiimides increases significantly with sterical hindrance around the cumulative double bond system. This book discusses three compounds that have a central electrophilic carbon atom, namely, carbon dioxide, carbonyl sulfide, and carbon disulfide. The book also describes the cycloaddition reactions of sulfenes, of N-sulfinylamines, of N-sulfinylsulfonamides, and of sulfurdiimides. This book can prove useful for researchers, technicians, and scientists whose works involve organic chemistry, analytical chemistry, and other related fields of chemistry.
Author: Henri Ulrich
Publisher: Elsevier
ISBN: 0323162762
Category : Science
Languages : en
Pages : 375
Get Book Here
Book Description
Cycloaddition Reactions of Heterocumulenes reviews cycloaddition reactions, particularly on hetercocumulenes having "four-electron" bonds. This book discusses the chemical relationship among the various classes of heterocumulenes, including their chemical reactivity which ranges from highly reactive species to nearly inert compounds. This text also investigates the nucleophilic reactions of ketenes and isocyanates with suitable substrates, and if possible, correlates available data with the reactivity of these species in cycloaddition reactions. This book also investigates the cycloaddition reactions of carbon suboxide and other aspects of its chemistry due to the presence of many other interrelated reactions. The synthetic organic chemist should also investigate the application of isocyanate reactions associated with the cumulative double bonds. This text investigates carbodiimides as useful reagents for peptide synthesis, and notes that the stability of carbodiimides increases significantly with sterical hindrance around the cumulative double bond system. This book discusses three compounds that have a central electrophilic carbon atom, namely, carbon dioxide, carbonyl sulfide, and carbon disulfide. The book also describes the cycloaddition reactions of sulfenes, of N-sulfinylamines, of N-sulfinylsulfonamides, and of sulfurdiimides. This book can prove useful for researchers, technicians, and scientists whose works involve organic chemistry, analytical chemistry, and other related fields of chemistry.
Author: Albert Padwa
Publisher: John Wiley & Sons
ISBN: 0471461369
Category : Science
Languages : en
Pages : 952
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Book Description
Dipolar cycloaddition reactions have found many useful applications in chemistry, particularly with respect to the synthesis of compounds with new chiral centers. Synthetic Applications of 1,3-Dipolar Cycloaddition Chemistry Toward Heterocycles and Natural Products updates the popular 1984 edition, featuring the advances made over the past twenty years and focusing on synthetic applications.
Author: Henri Ulrich
Publisher: John Wiley & Sons
ISBN: 9780470747933
Category : Science
Languages : en
Pages : 562
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Book Description
Cumulenes are organic molecules with two or more cumulative (consecutive) double bonds. Their reactions often proceed at room temperature, with or without a catalyst, and are stereospecific, giving the reaction products in high yields – features characteristic of “click reactions”. Cumulenes in Click Reactions presents a comprehensive list of cumulene systems and their reactions, with an emphasis on their “click-like” nature. The chapters are structured according to the number of carbon atoms in the system, including coverage of: introduction to the chemistry of cumulenes one-carbon cumulenes: sulfines, sulfenes, thiocarbonyl S-imides, thiocarbonyl S-sulfides, and 1-aza-2-azoniaallene salts two-carbon cumulenes: carbon oxides, carbon sulfides, carbon nitrides (isocyanates, isothiocyanates, and carbodiimides), phosphaallenes, and diarsaallenes 1,2-dicarbon cumulenes: ketenes, thioketenes, ketenimines, 1-silaallenes, 1-phosphaallenes, and other metal allenes 1,3-dicarbon cumulenes: thiocarbonyl S-ylides, 2-azaallenium salts, 1-oxa-3-azoniabutatriene salts, 1-thia-3-azoniabutatriene salts, and phosphorous ylides 1,2,3-tricarbon cumulenes: allenes, butatrienes, higher cumulenes and heterobutatrienes noncarbon cumulenes: azides, triazaallenium salts, sulfur oxides, sulfur nitrides, N-sulfinylamines, sulfurdiimides, and dithionitronium cation Cumulenes in Click Reactionsis an essential guide for researchers and advanced students in academia and research working in synthetic organic, inorganic and bioorganic chemistry.
Author: John P. Wolfe
Publisher: Springer
ISBN: 3642388809
Category : Science
Languages : en
Pages : 276
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Book Description
Synthesis of Saturated Heterocycles via Metal-Catalyzed Alkene Carboamination or Carboalkoxylation Reactions, by John P. Wolfe Synthesis of Saturated Heterocycles via Metal-Catalyzed Alkene Diamination, Aminoalkoxylation, or Dialkoxylation Reactions, by Sherry R. Chemler Synthesis of Heterocycles via Metal-Catalyzed Wacker-Type Oxidative Cyclization Reactions of Alkoxy- or Amino-Alkenes, by Wanbin Zhang Synthesis of Saturated Heterocycles via Metal-Catalyzed Hydroamination or Hydroalkoxylation Reactions, by Lisa D. Julian Synthesis of Saturated Heterocycles via Metal-Catalyzed Allylic Alkylation Reactions, by Aaron Aponick Synthesis of Heterocycles via Metal-Catalyzed Cascade/Domino Reactions that Generate a C–N or C–O Bond, by Mark Lautens Synthesis of Saturated Heterocycles via Metal-Catalyzed Formal Cycloaddition Reactions that Generate a C–N or C–O Bond, by Jerome Waser
Author: Vishnu Ji Ram
Publisher: Elsevier
ISBN: 0081011911
Category : Science
Languages : en
Pages : 504
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Book Description
Heterocycles are ubiquitously present in nature and occupy a unique place in organic chemistry as they are part of the DNA and haemoglobin that make life possible. The Chemistry of Heterocycles covers an introduction to the topic, followed by a chapter on the nomenclature of all classes of isolated, fused and polycyclic heterocycles. The third chapter delineates the highly strained three membered N,O and S containing aromatic and non-aromatic heterocycles with one and more than one similar and dissimilar heteroatom. The four-membered heterocycles are abundantly present in various natural and synthetic products of pharmacological importance. This chapter describes the natural abundance, synthesis, chemical reactivity, structural features and their medicinal importance. This class of compounds are present as sub-structures in penicillin and cytotoxic Taxol. Lastly, a chapter on the natural abundance, synthesis, chemical reactivity and pharmacological importance of 5-membered heterocycles with N,O,S heteroatom is covered. The chemistry of heterocycles with mixed heteroatom such as, N-S, N-O, N-S etc. is also described. - Gives in-depth, clear information about various systems of nomenclature along with widely acceptable IUPAC system for naming various classes of heterocycles - Provides complete information about natural occurrences, synthesis, chemical reactivity, pharmacological importance of heterocycles and their application in material science - Highly relevant for graduate students and researchers, providing updated information about various isolated and fused N,O and,S containing heterocycles
Author: R. Alan Jones
Publisher: Academic Press
ISBN: 1483218473
Category : Science
Languages : en
Pages : 539
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Book Description
The Chemistry of Pyrroles, Volume 34 aims to provide a comprehensive survey of the synthesis of simple pyrroles and to present, wherever possible, a mechanistic and theoretical rationale for the multitude of reactions known for pyrroles. The book discusses the structure and reactivity of pyrrole; the synthesis of the pyrrole ring; and the electrophilic substitution of the pyrrole ring. The text also describes the oxidation and reduction of the pyrrole ring; the rearrangement and addition reactions; and the ketones, aldehydes, and carboxylic acid derivatives of pyrrole. Alkylpyrroles and related compounds; hydroxy- and aminopyrroles and related compounds; and azafulvenes are also considered. The book further tackles the physico-organic properties of pyrrole. Chemists and researchers of pyrrole chemistry will find the text invaluable.
Author: Wolfgang Kirmse
Publisher: Elsevier
ISBN: 0323161456
Category : Science
Languages : en
Pages : 637
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Book Description
Carbene Chemistry, Second Edition discusses the developments in various areas of carbene chemistry, including the correlation of spectroscopic studies of isolated carbenes with quantum chemical calculations; new carbene precursors; differentiation of carbenes and carbenoids; and mechanisms of single and triplet carbine reactions. This book is composed of two main parts encompassing 13 chapters. The first part covers the many reactions known to transfer a formally divalent carbon fragment from one molecule to another, with special emphasis on the mechanism and a critical evaluation of the evidence for carbene intermediates. The second part examines the multitude of product-forming reactions of carbenes and carbenoids with various substrates. This part also describes the structure-reactivity relationships for both carbenes and their substrates, followed by a discussion of the applications of carbene compounds in synthetic organic chemistry. This work will be of great value to organic chemists and researchers.
Author: Richard Sundberg
Publisher: Elsevier
ISBN: 0323147860
Category : Science
Languages : en
Pages : 505
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Book Description
Organic Chemistry, Volume 18: The Chemistry of Indoles discusses the chemistry of indole derivatives. This book explores the potent biological activity of several indole derivatives and explains the structure of indole alkaloids. Organized into 10 chapters, this monograph starts with an overview of the most important types of reactions of the indole ring on a mechanical basis. This text then proceeds to review the methods of synthesizing indoles and describes the oxidations and rearrangements of indole derivatives. Other chapters explore the special features of the synthesis and reactivity of hydroxyindoles, acylindoles, and aminoindoles. This book discusses as well the properties of carboxyl groups, which is substituted on the benzenoid ring of the indole nucleus that is typical of aromatic carboxylic acids. The final chapter deals with the certain classes of indoles that are found in nature. Chemists, researchers, and readers interested in the chemistry of indoles will find this book extremely useful.
Author: Walter Trahanovsky
Publisher: Elsevier
ISBN: 0323158714
Category : Science
Languages : en
Pages : 263
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Book Description
Organic Chemistry, Volume 5-B: Oxidation in Organic Chemistry, Part B presents some of the most common and significant reactions in organic chemistry, which involves oxidation and reduction. This book provides detailed discussions of specific oxidants or topics concerning oxidation of organic compounds. Organized into four chapters, this volume begins with an overview of the specific oxidants, including thallium(III), cupric ion, and ruthenium tetroxide. This text then presents the scope and preparative use as well as the mechanistic aspects of the various oxidations. Other chapters consider the significance of phenolic oxidative coupling in nature's biosynthetic pathways. This book discusses as well the various mechanistic alternatives for the enzymic and non-enzymic reactions, which will lead to a fuller understanding of the enzymic mechanisms and the greater synthetic utility of this reaction. The final chapter deals with the oxidative coupling of phenols. This book is a valuable resource for organic chemists and research workers.
Author: Stanley R. Sandler
Publisher: Elsevier
ISBN: 1483275639
Category : Science
Languages : en
Pages : 511
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Book Description
Organic Functional Group Preparations, Volume II describes 17 organic functional groups and presents a critical review of their available methods of synthesis with preparative examples of each. The book puts special attention to the presentation of specific laboratory directions for the many name reactions used in describing the synthesis of these functional groups. Each chapter deals with the preparation of a given functional group by various reaction types (condensation, elimination, oxidation, reduction) and a variety of starting materials. Ynamines, enamines, allenes, and N-nitroso compounds are some of the organic functional groups described in the text. Organic chemists will find the book invaluable.
