Resultados de Pesquisa

INGLÊS

Sulfur Reagents In Organic Synthesis

de Andre Thuillier e Patrick Metzner

58,29€ + 10% EM CARTÃO

DISPONIBILIDADE IMEDIATA

 Designed for the practising organic chemist, this book details over a hundred experimental procedures using sulfer compounds in organic synthesis. Many of these methods are new to the literature, having been published since 1991, and illustrate the striking versatility of the use of sulfur reagents. Examples are simple to perform and extremely useful, and as such this book will be an invaluable aid to all involved in synthetic organic chemistry, whether in academic or industrial laboratories.
INGLÊS

Free Radical Chain Reactions In Organic Synthesis

de David Crich e William B. Motherwell

58,29€ + 10% EM CARTÃO

DISPONIBILIDADE IMEDIATA

 Provides guidance to the practical aspects of free radical chain reactions. This book presents synthetic schemes as well as a selection of developed methods describing rationally designed, highly efficient syntheses giving high yield interconversions of functional groups and carbon*b1carbon bond formation under mild, neutral conditions.
INGLÊS

Best Synthetic Methods: Acetylenes, Allenes And Cumulenes

304,75€ + 10% EM CARTÃO

DISPONIBILIDADE IMEDIATA

 There is a vast and often bewildering array of synthetic methods and reagents available to organic chemists today. The Best Synthetic Methods series allows any scientist who is interested in the chemical transformations of molecules to choose between all the alternatives and assess their real advantages and limitations. With the emphasis on laboratory use, these volumes represent a comprehensive and practical guide to modern synthetic organic chemistry. Best Synthetic Methods: Acetylenes, Allenes and Cumulenes is the product of the author's many years practical experience and reading of the original literature. It contains a valuable distillation and critical evaluation of the Best Synthetic Methods for the formation and reaction of molecules containing carbon-carbon triple bonds or cumulative carbon-carbon double bonds. A brief review of each area is provided, but the emphasis in all cases is on describing efficient practical methods to effect the transformations described. The reader can therefore use this book to rapidly review and select the best methods of performing a synthetic conversion to create or modify a molecule containing an acetylene, allene or cumulene functionality. In addition, the documentation of a large number of experimental recipes enables the user to synthesise an unsaturated molecule without the need to access to the original literature. - Reviews and evaluates the various methods for the formation and reaction of acetylenes, cumulenes and allenes- Provides detailed practical experimental for many important reactions- General tips and analytical data are provided from the author's own extensive research in this area
INGLÊS

Indoles

de Richard J. Sundberg

103,35€ + 10% EM CARTÃO

DISPONIBILIDADE IMEDIATA

 Provides a guide to the useful and important reactions in the field for both synthesis and synthetic modification of the indole ring. This book discusses methods for preparing indoles by annelation of pyrroles. It covers methods for adding or modifying substituent groups, including methods for introducing the tryptamine and tryptophan side-chains.
INGLÊS

Organomagnesium Methods In Organic Chemistry

de Basil J. Wakefield

165,63€ + 10% EM CARTÃO

DISPONIBILIDADE IMEDIATA

 The book opens with a general overview of the constitution and reactivity of organomagnesium compounds, followed by information on handling them and on their detection and estimation. Throughout, practical aspects aswell as principles are emphasized. The chapters on the synthesis of organomagnesium compounds cover the preparation of special forms of metallic magnesium and the reaction of magnesium with substrates such as dienes, as well as the traditional preparation of Grignard reagents. Preparations by metallation and metal-halogen exchanges are also included, as are newer methods such as hydromagnesiation of alkenes and alkynes. Systematic coverage is provided on synthetically useful reactions of organomagnesium compounds. Of fundamental importance in organic synthesis are carbon-carbon bond forming reactions; additions to carbon-carbon, carbon-nitrogen, carbon-oxygen, and carbon-sulfur multiple bonds; and nucleophilic substitution at carbon. The formation of carbon-heteroatom bonds in organic compounds is described, where the heteroatom is hydrogen, nitrogen, oxygen, sulfur, or halogen. Finally, the use of organomagnesium compounds in preparing other organometalloid and organometallic compounds is outlined. Representative experimental procedures are included throughout the book, and tables with references to well-described examples are provided. - Presents a general overview of the constitution and reactivity of organomagnesium compounds- Provides coverage on the detection and estimation of organomagnesium compounds- Emphasizes practical aspects as well as principles- Covers the preparation of special forms of metallic magnesium and the reaction of magnesium with substrates such as dienes- Includes preparations by metallation and metal-halogen exchanges- Reviews new preparation methods such as hydromagnesiation of alkenes and alkynes- Outlines information on synthetically useful reactions of organomagnesium compounds- Describes the formation of carbon-heteroatom bonds in organic compounds- Addresses the use of organomagnesium compounds in preparing other organometalloid and organometallic compounds- Includes representative procedures and tables with references to well-described examples
INGLÊS

Imidazole And Benzimidazole Synthesis

de M. R. Grimmett

192,13€ + 10% EM CARTÃO

DISPONIBILIDADE IMEDIATA

 Presents a survey of the known methods of syntheses and ring modification. This work brings together the synthesis of the imidazole ring in a systemic way interms of specific bond formation. It also collects non-ring-synthetic approaches to classes of compounds such as nitro-, halogeno-, and amino-imidazoles, and more.
INGLÊS

Hypervalent Iodine In Organic Synthesis

de A. Varvoglis

165,63€ + 10% EM CARTÃO

DISPONIBILIDADE IMEDIATA

 This book describes the fascinating chemistry of the many kinds of organic compounds of hypervalent iodine. Each chapter deals with a particular iodine compound or families of compounds which have been used as reagents in a plethora of useful transformations. These include assorted oxidation, such as with the precious Dess-Martin reagent as well as with a wide range of further reactions.Prominent features of hypervalent iodine reagents derived from iodobenzene are: ready availability, operational simplicity, mild reaction conditions, and high efficiency. They are environmentally safe and can be recycled. New species may be easily prepared by introducing substituents in the benzene ring or changing the ligand attached to iodine. Their combination with other reagents broadens considerably their synthetic potential. Today, no synthetic chemist can afford to ignore the valuable hypervalentiodine reagents.- Features up-to-date coverage of a wide range of topics- Includes many tables featuring a diversity of reactivity, and a comprehensive index- Acts as a comprehensive, up-to-date reference on all aspects of hypervalent iodine chemistry- Contains a section on unusual efficiency of hypervalent iodine reactions
INGLÊS

Quaternary Ammonium Salts - Their Use In Phase-Transfer Catalysis

de R. Alan Jones

159,00€ + 10% EM CARTÃO

DISPONIBILIDADE IMEDIATA

 This text provides experimental methods for a wide range of organic reactions, systematically arranged according to reaction type, and describes the advantages and limitations of the procedures. Traditional methods to speed up organic reactions involve energy-consuming processes and costly and environmentally "unfriendly" solvents. Additionally, isolation of the product requires energy and time-consuming purification processes. A simple solution, especially for reactions involving anionic reactants, is the use of phase-transfer catalysis. Quaternary ammonium cations have the ability to transfer the anionic reactants as non-solvated ion-pairs from aqueous media into organic media. The resultant effect is to increase the rate of the organic reaction by enhancing the reactivity of the anionic species and increasing the encounter rate with the organic substrate. Side reactions are frequently eliminated so that the overall yield of the desired product is increased.Quaternary Ammonium Salts presents procedures for reducing reaction times and the need for extreme conditions, which are frequently encountered under standard reaction procedures.This is the only book to be published on quaternary ammonium salts. Best Synthetic Methods volumes allow the practicing synthetic chemist to choose between all the alternatives and assess their real advantages and limitations. Each volume of the series deals with a particular topic from a practical point of view, giving detailed examples and precise experimental directions and hints. With the emphasis on laboratory use, these volumes represent a comprehensive and practical guide to modern synthetic organic chemistry.
INGLÊS

Carbohydrates

205,38€ + 10% EM CARTÃO

DISPONIBILIDADE IMEDIATA

 There is a vast and often bewildering array of synthetic methods and reagents available to organic chemists today. The Best Synthetic Methods series allows the practising synthetic chemist to choose between all the alternatives and assess their real advantages and limitations. Each chapter in Carbohydrates details a particular theme associated with carbohydrate synthesis. A brief review of the subject area is provided, but the emphasis in all cases is on describing efficient practical methods to effect the transformations described. In order for the roles of carbohydrates to be thoroughly analysed and assessed, glycobiologists require access to defined target carbohydrates in useful quantities. Thus carbohydrates and glycoconjugates are now recognized as important targets for total synthesis programmes and it is essential to develop efficient regio- and stereoselective methods for the synthesis of carbohydrates. Whilst carbohydrates can sometimes be isolated from natural sources, synthetic strategies often offer the advantage of allowing access to larger quantities of material as well as entry to analogues of the natural carbohydrates. - The latest volume in the long standing Best Synthetic Methods series- Clear chapter by chapter breakdown of carbohydrate synthesis themes with examples of good practical methods for common carbohydrate syntheses
INGLÊS

Thiophenes

de Anna-Britta Hornfeldt e Salo Gronowitz

371,00€ + 10% EM CARTÃO

DISPONIBILIDADE IMEDIATA

 Features a description and critical evaluation of the best methods for preparation of thiophenes and polymers containing thiophenes.
INGLÊS

Thiophenes

de Anna-Britta Hornfeldt e Salo Gronowitz

ESGOTADO OU NÃO DISPONÍVEL

 Features a description and critical evaluation of the best methods for preparation of thiophenes and polymers containing thiophenes.

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