Organic Synthesis Using Transition Metals

Author: Roderick Bates

Publisher: John Wiley & Sons

ISBN: 1118313666

Category: Science

Page: 464

View: 6295

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Transition metals open up new opportunities for synthesis, becausetheir means of bonding and their reaction mechanisms differ fromthose of the elements of the s and p blocks. In the last twodecades the subject has mushroomed - established reactions areseeing both technical improvements and increasing numbers ofapplications, and new reactions are being developed. Thepracticality of the subject is demonstrated by the large number ofpublications coming from the process development laboratories ofpharmaceutical companies, and its importance is underlined by thefact that three Nobel prizes have been awarded for discoveries inthis field in the 21st Century already. Organic Synthesis Using Transition Metals, 2nd Editionconsiders the ways in which transition metals, as catalysts andreagents, can be used in organic synthesis, both for pharmaceuticalcompounds and for natural products. It concentrates on thebond-forming reactions that set transition metal chemistry apartfrom "classical" organic chemistry. Each chapter isextensively referenced and provides a convenient point of entry tothe research literature. Topics covered include: introduction to transition metals in organic synthesis coupling reactions C-H activation carbonylative coupling reactions alkene and alkyne insertion reactions electrophilic alkene and alkyne complexes reactions of alkyne complexes carbene complexes spanstyle="font-family: Symbol; font-size: 10pt; mso-fareast-font-family: 'Times New Roman'; mso-bidi-font-family: Arial; mso-ansi-language: EN-GB; mso-fareast-language: EN-US; mso-bidi-language: AR-SA;"h/span3-or spanstyle="font-family: Symbol; font-size: 10pt; mso-fareast-font-family: 'Times New Roman'; mso-bidi-font-family: Arial; mso-ansi-language: EN-GB; mso-fareast-language: EN-US; mso-bidi-language: AR-SA;"p/span-allyl-allyl complexes diene, dienyl and arene complexes cycloaddition and cycloisomerisation reactions For this second edition the text has been extensively revisedand expanded to reflect the significant improvements and advancesin the field since the first edition, as well as the large numberof new transition metal-catalysed processes that have come toprominence in the last 10 years – for example theextraordinary progress in coupling reactions using“designer” ligands, catalysis using gold complexes, newopportunities arising from metathesis chemistry, and C-H activation– without neglecting the well established chemistry of metalssuch as palladium. Organic Synthesis Using Transition Metals, 2nd Editionwill find a place on the bookshelves of advanced undergraduates andpostgraduates working in organic synthesis, catalysis, medicinalchemistry and drug discovery. It is also useful for practisingresearchers who want to refresh and enhance their knowledge of thefield.
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Transition Metal Reagents and Catalysts

Innovations in Organic Synthesis

Author: Jiro Tsuji

Publisher: John Wiley & Sons

ISBN: 9780471560272

Category: Science

Page: 477

View: 8015

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Transition Metal Reagents and Catalysts Innovations in OrganicSynthesis Jiro Tsuji Emeritus Professor, Tokyo Institute ofTechnology, Japan Numerous innovative and practical syntheticmethods using transition metal complexes as either catalysts orreagents have been developed over the last 35 years. TransitionMetal Reagents and Catalysts combines the varied applications oftransition metal complexes in a unique and timely book in thisrapidly advancing area of organic synthesis. This text is an easilyunderstandable and enjoyable read for organic chemists who are notyet familiar with organo-transition metal chemistry. TransitionMetal Reagents and Catalysts presents: * Complete coverage of nearly 35 years of transition metal complexchemistry * An in-depth treatment of many innovative syntheticmethodologies * A rational classification of all reactions according tosubstrates and reaction mechanisms * Examples of important applications of transition metal catalysedreactions. A knowledge of organic synthesis using transition metal complexesis a must for all synthetic organic chemists. Written for chemistswho wish to apply novel synthetic methods using transition metalcomplexes to solve problems in organic and pharmaceuticalchemistry, such as synthesis of fine and bulk chemicals and naturalproducts, Transition Metal Reagents and Catalysts is an essentialreference source and an indispensible research companion.
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Annual Reports in Organic Synthesis 1993

1993

Author: Philip M. Weintraub

Publisher: Elsevier

ISBN: 0080916236

Category: Science

Page: 546

View: 5704

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This handy reference tool is an organized annual review of synthetically useful information. It abstracts synthetic reactions from the major chemistry journals of the past year and includes all reactions and methodsthat are new and reasonably general. The reactions are presented in a convenient pictorial format designed for rapid visual retrieval of information. The Journal of the American Chemical Society has aptly described this publication as an"aid to the harassed organic chemist who cannot keep up with the never-diminishing stream of new primary literature"and hails it"an outstandingly good buy." Clearly illustrated structures of compounds in every feasible syntheticpathway A general review of structure/activity information for each synthetic compound Extensive reference information provided for additional publications available for each reactiondiscussed
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New Pathways for Organic Synthesis

Practical Applications of Transition Metals

Author: H.M. Colquhoun,J. Holton,D.J. Thompson,M.V. Twigg

Publisher: Springer Science & Business Media

ISBN: 1461326516

Category: Science

Page: 468

View: 6579

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The continually growing contribution of transition metal chemistry to synthetic organic chemistry is, of course, widely recognized. Equally well known is the difficulty in keeping up-to-date with the multifarious reactions and procedures that seem to be spawned at an ever-increasing rate. These can certainly be summarized on the basis of reviews under the headings of the individual transition metals. More useful to the bench organic chemist, however, would be the opposite type of concordance based on the structural type of the desired synthetic product. This is the approach taken in the present monograph, which presents for each structural entity a conspectus of the transition metal-mediated processes that can be employed in its production. The resulting comparative survey should be a great help in devising the optimum synthetic approach for a particular goal. It is presented from an essentially practical viewpoint, with detailed direc tions interspersed in the Houben-Weyl style. The wide scope of the volume should certainly encourage synthetic organic chemists to utilize fully the range and versatility of these transition metal-mediated processes. This will certainly be a well-thumbed reference book! R. A. RAPHAEL Cambridge University v Preface In recent years an enormous amount of work has been done on the catalysis of organic reactions by various transition metal species and on the organic reactivity of organo-transition-metal compounds.
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Ti (III) catalyzed synthesis of exocyclic allenes and development of new titanocene complexes

Author: Carmen Hernández Cervantes

Publisher: Universidad Almería

ISBN: 8416642109

Category:

Page: 328

View: 3616

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This thesis deals with the Ti(III) catalyzed synthesis of exocyclic allenes and the development of new titanocene complexes. It is structured in six chapters: Chapter 1 is a general introduction about the generation and reactivity of [TiCp2Cl]. A review about the different [TiCp2Cl] catalyzed or promoted reactions reported to date, is included. Chapter 2 is divided in introduction and results and discussion. In the introduction, an overview about the promoted or catalyzed methodologies, already available for the synthesis of α-allenols, is included. Results and discussion section is sub-divided in other two parts. The first one describes the synthesis of carbocyclic or nitrogen heterocyclic precursors bearing a propargyl halide and a carbonyl group. Next, the [TiCp2Cl] catalyzed synthesis of exocyclic allenols is studied. Additionally, a mechanistic study through deuterium incorporation and reaction of secondary propargyl halide precursors is performed. In the second part, the preparation of oxygen precursors and its cyclization are studied. In chapter 3, there is an introduction about enantioselective syntheses using chiral titanocene catalysts. The results and discussion section deals with the enantioselective cyclization of some of the precursors previously prepared using precatalyst (R,R)-ethylenebis(4,5,6,7-tetrahydro-1-indenyl) titanium(IV), also known as Brintzinger complex. A formal synthesis of the alkaloid (})-stemoamide is carried out in chapter 4, being the key step for this synthesis the generation of an α-allenol derivative through a [TiCp2Cl] catalyzedcyclization. This chapter is also divided in an introduction, in which a review about the different methods of synthesis of stemoamide are included, and results and discussion. Chapter 5 compiles the project that I have developed during my research stay at University of Bonn, under the supervision of Prof. Gansauer. The target of this project was to develop an azide functionalized short linker titanocene derivative with the aim of linking it to a surface by click chemistry. The chapter is divided in introduction and results and discussion. In the introduction the different methodologies for the synthesis of titanocene derivatives are reviewed. This section also includes the background in which this project is based. Chapter 6 includes the experimental part. In this chapter all reactions performed during the development of this thesis, as well as the spectroscopic characterization of compounds, are compiled.
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Transition metals for organic synthesis

building blocks and fine chemicals

Author: Matthias Beller,Carsten Bolm

Publisher: N.A

ISBN: 9783527295012

Category: Science

Page: 467

View: 1647

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The application of transition metals in organic synthesis, be it as catalysts or mediators, is one of the most interesting interdisciplinary topics in chemistry. The enormous breadth of transition metals in both research and industry is comprehensively covered by the team of over 70 international experts assembeled for this two-volume set. The title presents the current state of research and application in the economically and scientifically important area of transition metals for organic synthesis and fine chemicals production. The title's high quality contributors, over 1000 figures, well-balanced presentation, and excellent indices all combine to allow the reader easy access to the thorough and topical compilation of the use of transition metals in organic chemistry. The two-volume set 'Transition Metals for Fine Chemicals and Organic Synthesis' is an indispensable tool for everyone working in academic or industrial application of transition metals in chemistry.
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Transition Metal Arene P-Complexes in Organic Synthesis and Catalysis

Author: Peter E. Kündig,A. Böttcher

Publisher: Springer Science & Business Media

ISBN: 9783540016045

Category: Science

Page: 232

View: 9179

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Metal-arene p-complexes show a rich and varied chemistry. The metal adds a third dimension to the planar aromatic compounds and coordination of a metal to an arene thus not only altering the reactivity of ring-carbons and substituents but also makes possible reactions that lead to chiral non-racemic products. This book, organized in nine chapters and written by leading scientists in the field provides the reader with an up-to-date treatise on the subject organized according to reaction type and use. It covers the wide spectrum of arene activation: from the electrophilic activation of h6-bound areneï⿬ by p-Lewis acid metal complex fragments, to reactions of nucleophilic h2-coordinated arene complexes. The preparation of complexes is detailed, as are the scope, limitations and challenges of reactions in contemporary p-arene metal chemistry with special attention given to asymmetric transformations. The emphasis of the book is on transformations of interest to organic synthesis and on the use of the complexes as catalysts or as chiral ligands. The book is written for academic and industrial researchers in organic, organometallic, and inorganic chemistry as well as for advanced chemistry students
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Rhodium Catalysis in Organic Synthesis

Methods and Reactions

Author: Ken Tanaka

Publisher: Wiley-VCH

ISBN: 3527343644

Category: Science

Page: 688

View: 6078

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An essential reference to the highly effective reactions applied to modern organic synthesis Rhodium complexes are one of the most important transition metals for organic synthesis due to their ability to catalyze a variety of useful transformations. Rhodium Catalysis in Organic Synthesis explores the most recent progress and new developments in the field of catalytic cyclization reactions using rhodium(I) complexes and catalytic carbon-hydrogen bond activation reactions using rhodium(II) and rhodium(III) complexes. Edited by a noted expert in the field with contributions from a panel of leading international scientists, Rhodium Catalysis in Organic Synthesis presents the essential information in one comprehensive volume. Designed to be an accessible resource, the book is arranged by different reaction types. All the chapters provide insight into each transformation and include information on the history, selectivity, scope, mechanism, and application. In addition, the chapters offer a summary and outlook of each transformation. This important resource: -Offers a comprehensive review of how rhodium complexes catalyze a variety of highly useful reactions for organic synthesis (e.g. coupling reactions, CH-bond functionalization, hydroformylation, cyclization reactions and others) -Includes information on the most recent developments that contain a range of new, efficient, elegant, reliable and useful reactions -Presents a volume edited by one of the international leading scientists working in the field today -Contains the information that can be applied by researchers in academia and also professionals in pharmaceutical, agrochemical and fine chemical companies Written for academics and synthetic chemists working with organometallics, Rhodium Catalysis in Organic Synthesis contains the most recent information available on the developments and applications in the field of catalytic cyclization reactions using rhodium complexes.
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Encyclopedia of Inorganic Chemistry

Author: R. Bruce King

Publisher: Wiley

ISBN: N.A

Category: Science

Page: 6696

View: 3303

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The ultimate resource on inorganic chemistry – new and completely revised, 10 years after publication of the First Edition The first edition of the Encyclopedia of Inorganic Chemistry treated the elements of the periodic system in alphabetical order, with multiple entries for key elements. The articles from the First Edition were written more than 10 years ago and all areas of inorganic chemistry have seen such a vigorous development that it was necessary to update most articles and to add a considerable number of new articles. The result of this major work is the proud Encylopedia of Inorganic Chemistry Second Edition (EIC-2). New – now includes colour 30% growth on previous edition – now 6,640 pages, published in 10 volumes EIC-2 continues to present articles in alphabetical order, but the content has been slightly reorganized to the following subject areas: Main Group Elements; Transition Metals and Coordination Chemistry; Organometallic Chemistry; Bioinorganic Chemistry; Solid State, Materials, Nanomaterials and Catalysis; and General Inorganic Chemistry, Theoretical and Computational Methods.
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