Download or read book Synthesis of Molybdenum Olefin Metatheses Catalysts Through Protonation Reactions written by Amritanshu Sinha and published by . This book was released on 2006 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: (Cont.) It was observed that catalytically active species for metathesis reactions can be generated by another Mo (d2) species, Mo(NArcl)(Biphen)(H2C=CH2)(ether) (NArc, = N-2,6-C12C6H3, Biphen2 = 3,3'-di-t-butyl-5,5',6,6'-tetramethyl-1,1'-biphenyl-2,2'-diolate) that could effect the ring-opening metathesis polymerization of norbornene. A mixture of Mo(NArcl)(Biphen)(H2C=CH2)(ether) and 20 equivalents of diallylether in benzene-d6 when treated with 10 equivalents of norbornene gives 54% conversion to dihydrofuran in 10 days.

Download or read book Handbook of Metathesis Volume 1 written by Robert H. Grubbs and published by John Wiley & Sons. This book was released on 2015-02-18 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: The second edition of the Handbook of Metathesis, edited by Nobel Prize Winner Robert H. Grubbs and his team, is available as a 3 Volume set as well as individual volumes. Volume 1, edited by R. H. Grubbs together with A. G. Wenzel focusses on Catalyst Development and Mechanism. The new edition of this set is completely updated (more than 80% new content) and expanded, with a special focus on industrial applications. Written by the "Who-is-Who" of metathesis, this book gives a comprehensive and high-quality overview. It is the perfect and ultimate one-stop-reference source in this field and indispensable for chemists in academia and industry alike. View the set here - http://www.wiley.com/WileyCDA/WileyTitle/productCd-3527334246.html Other available volumes: Volume 2: Applications in Organic Synthesis, Editors: R. H. Grubbs and D. J. O´Leary - http://www.wiley.com/WileyCDA/WileyTitle/productCd-3527339493.html Volume 3: Polymer Synthesis, Editors: R. H. Grubbs and E. Khosravi - http://www.wiley.com/WileyCDA/WileyTitle/productCd-3527339507.html

Download or read book Olefin Metathesis and Polymerization Catalysts written by Yavuz Imamogammalu and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 567 pages. Available in PDF, EPUB and Kindle. Book excerpt: Olefin metathesis reaction can be considered as one of the most successful organic reactions with many applications in the low molecular weight range and also in the polymer field. The use of catalysts with their selective and effective transformation properties in olefin metathesis I polymerization systems is a growing interest. There has been great effort and competition in developing active and commercially useful catalysts. The main aim of this ASI was to gather several research groups and also the people from industry. to present existing knowledge and latest results in the field. A wide range of topics through homogeneous and heterogeneous aspects have been considered. Attention has been drawn to the metal-carbene and metallacyclobutane complexes as active species, the initiation mechanisms, the stereochemistry and thermodynamics of these reactions. New catalytic systems for the metathesis of alkenes and alkynes and fot' ring opening polymeriZation I block copolymerization reactions have been introduced. Spectroscopic studies for the characteriZation of catalysts, simulation studies explaining the function of chain carrier species and polymer degradation have also been covered. A detailed industrial report concerning the patents and applications in olefin metathesis I cyc1001efin polymerization area, fabrication and derivation has been presented. This volume contains the main lectures and seminars given at the NATO Advanced Study Institute on " Olefin Metathesis and Polymerization Catalysts: Synthesis, Mechanism and Utilization", held at Akcay. Babkesir. Turkey between 10th and 22nd September 1989.

Download or read book Handbook of Metathesis Volume 2 written by Robert H. Grubbs and published by John Wiley & Sons. This book was released on 2015-02-18 with total page 744 pages. Available in PDF, EPUB and Kindle. Book excerpt: The second edition of the "go-to" reference in this field is completely updated and features more than 80% new content, with emphasis on new developments in the field, especially in industrial applications. No other book covers the topic in such a comprehensive manner and in such high quality. Edited by the Nobel laureate R. H. Grubbs and D. J. O´Leary, Volume 2 of the 3-volume work focusses on applications in organic synthesis. With a list of contributors that reads like a "Who's-Who" of metathesis, this is an indispensable one-stop reference for chemists in academia and industry. View the set here - http://www.wiley.com/WileyCDA/WileyTitle/productCd-3527334246.html Other available volumes: Volume 1: Catalyst Development and Mechanism, Editors: R. H. Grubbs and A. G. Wenzel - http://www.wiley.com/WileyCDA/WileyTitle/productCd-3527339485.html Volume 3: Polymer Synthesis, Editors: R. H. Grubbs and E. Khosravi - http://www.wiley.com/WileyCDA/WileyTitle/productCd-3527339507.html

Download or read book Molybdenum Oxide Mesoporous Silica Metathesis Catalysts written by Pavel Topka and published by LAP Lambert Academic Publishing. This book was released on 2013 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: Alkene metathesis attracted recently much attention, especially with the 2005 Nobel prize awarded for the development of the metathesis method in organic synthesis. Supported molybdenum oxide catalysts are widely used in industrial petrochemical processes, including metathesis (e.g. Phillips triolefin process, Shell higher olefin process). The present work discloses new type of metathesis catalysts based on molybdenum oxide supported on mesoporous silica. The key idea is to improve the activity of molybdenum oxide catalyst in this reaction utilizing high surface area and narrow pore size distribution of the support material. For the preparation of the catalysts, innovative and environmentally friendly thermal spreading method was employed. The thorough characterization of the catalysts by physicochemical techniques is described. The analysis of activity/selectivity vs. composition/structure relationships should help shed some light on this new and exciting field of heterogeneous catalysis, and should be especially useful to professionals in metathesis chemistry, or anyone else who may be considering utilizing molybdenum oxide catalysts for another catalytic reaction.

Download or read book Handbook of Metathesis 3 Volume Set written by Robert H. Grubbs and published by John Wiley & Sons. This book was released on 2015-05-26 with total page 1639 pages. Available in PDF, EPUB and Kindle. Book excerpt: Covering the complete breadth of the olefin metathesis reaction. The second edition of the ultimate reference in this field is completely updated and features more than 80% new content, with the focus on new developments in the field, especially in industrial applications. No other book covers the topic in such a comprehensive manner and in such high quality, and this new edition retains the three-volume format: Catalyst Development, Applications in Organic Synthesis and Polymer Synthesis. Edited by a Nobel laureate in the field, and with a list of contributors that reads like a "Who's-Who" of metathesis, this is an indispensable one-stop reference for organic, polymer and industrial chemists, as well as chemists working with organometallics. Individual volumes also available separately to purchase Volume 1: Catalyst Development - http://www.wiley.com/WileyCDA/WileyTitle/productCd-3527339485.html Volume 2: Applications in Organic Synthesis - http://www.wiley.com/WileyCDA/WileyTitle/productCd-3527339493.html Volume 3: Polymer Synthesis - http://www.wiley.com/WileyCDA/WileyTitle/productCd-3527339507.html

Download or read book Olefin Metathesis written by Karol Grela and published by John Wiley & Sons. This book was released on 2014-04-11 with total page 608 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a complete examination of the theory and methods ofmodern olefin metathesis, one of the most widely used chemicalreactions in research and industry. Provides basic information for non-specialists, while alsoexplaining the latest trends and advancements in the field toexperts Discusses the various types of metathesis reactions, includingCM, RCM, enyne metathesis, ROMP, and tandem processes, as well astheir common applications Outlines the tools of the trade—from the importantclasses of active metal complexes to optimal reactionconditions—and suggests practical solutions for commonreaction problems Includes tables with structures of commercial catalysts, andrecommendations for commercial catalyst suppliers

Download or read book Synthesis and Reactivity of High Oxidation State Tungsten and Molybdenum Olefin Metathesis Catalysts Bearing New Imido Ligands written by Jonathan Clayton Axtell and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Chapter 1 details the synthesis of tungsten imidoalkylidene compounds bearing strongly electron-withdrawing imido ligands. An alternative synthesis involving the treatment of WCl6 with 4 equivalents of N-trimethylsilyl-substituted anilines and subsequent workup with 1,2-dimethoxyethane (DME) has been employed to form complexes of the type W(NAr)2C12(dme); syntheses employing WO2C 2(dme) as the tungsten precursor were unsuccessful. Alkylation with neopentylmagnesium chloride (ClMgNp) and subsequent treatment with trifluoromethanesulfonic acid (HOTf) affords imidoalkylidene species W(NAr)(CHCMe 3)(OTf)2(dme) (OTf = trifluoromethanesulfonate); analogous neophylidene ([W]CHCMe 2Ph) species could not be made under these conditions. Treatment of these compounds with two equivalents of LiO(2,6-(CHCPh 2)C6H3)-Et2O affords the bisaryloxide complexes of the type W(NAr)(CHCMe3)(OR)2. Ring-Opening Metathesis Polymerization (ROMP) studies using a series of these bisaryloxides show that rates of ROMP increase as the electron-withdrawing power of the substituents on the imido ligand increase if steric bulk about the metal center is held constant. A similar trend between two bisaryloxides is observed for anti-to-syn alkylidene rotation rates at 50*C in toluene-d8 . Difficulties synthesizing bis-pyrrolide complexes of the type W(NAr)(CHCMe3)(pyr)2 precluded their use as catalyst precursors; some MAP species containing the more sterically encumbering 2,5-dimethylpyrrolide ligand are presented and the metathesis activity of MAP species bearing the 2,5-dimethylpyrrolide ligand is discussed. Chapter 2 introduces Mo and W complexes bearing the current extreme in sterically bulky imido ligands, the NHIPT (HIPT = 2,6-(2,4,6-iPr 3CH2)CH3) ligand, in an effort to generate all anti alkylidene species. A non-traditional synthetic route is employed in order to install this ligand first as an anilide, and after subsequent proton transfer, as an imido ligand to form a mixed imido species of the type M(NHIPT)(N'Bu)(NH'Bu)Cl. Addition of one equivalent of 2,6-lutidinium chloride, followed by alkylation affords dialkyl species M(NHIPT)(N'Bu)Np 2, and treatment with three equivalents of pyridinium chloride yields all anti imidoalkylidene dichloride species as mono-pyridine adducts, M(NHIPT)(CHCMe 3)C 2(py) (M = Mo, W). General reactivity, including strategies for removal of the pyridine adduct as well as substitution and metathesis chemistry, are discussed. ROMP of MPCP (MPCP = 3-methyl-3-phenylcyclopropene) by a Mo-based MAP species bearing the NHIPT ligand yields predominantly cis,syndiotactic poly(MPCP) and in the homo-metathesis of 1 -octene yields ~81% cis-7-tetradecene. The possible source of trans olefinic product is addressed. Chapter 3 presents the synthesis of the first (1-adamantyl)imido species of tungsten. The functional equivalent of common bisimido precursors for other Mo/W alkylidene species, [W(NAd) 2C 2(AdNH2)1 2, is shown to be a dimer stabilized by hydrogen-bonding interactions between adamantylamine protons and adjacent chlorides bound to the second metal of the dimer. Subsequent alkylation with ClMgNp affords the expected dialkyl species, and treatment with three equivalents of 3,5-lutidinium chloride affords imidoalkylidene complex W(NAd)(CHCMe 3)(C) 2(lut)2 (lut = 3,5-dimethylpyridine). The most desirable synthetic route toward monoalkoxide pyrrolide (MAP) species proceeds through a monoaryloxide monochloride intermediate W(NAd)(CHCMe 3)(Cl)(OAr)(lut) (Ar = 2,6-(2,4,6-Me 3)C6H3, 2,6-(2,4,6-'Pr 3)C6H3). Removal of lutidine with B(C6 F5 )3 and subsequent treatment with lithium pyrrolide affords W(NAd)(CHCMe3)(pyr)(OAr) (pyr = pyrrolide); 2,5-dimethylpyrrolide analogues (W(NAd)(CHCMe3)(Me2pyr)(OAr) can be accessed via protonolysis by HOAr from W(NAd)(CHCMe3)(Me2pyr)2(lut).

Download or read book Synthesis of Molybdenum and Tungsten Oxo and Imido Alkylidene NHC Complexes and Their Use in Stereoselective Ring Opening Metathesis Polymerization written by Mathis Benedikter and published by Cuvillier Verlag. This book was released on 2021-04-08 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt: Im Rahmen der Dissertation wurden unterschiedliche Aspekte der Olefinmetathese mit Molybdän- und Wolframbasierten Katalysatoren untersucht. Zunächst wurde die Eignung von Molybdän Imido Alkyliden N-heterocyclischen Carben (NHC) Komplexen als Initiatoren für die ringöffnende Metathese-Polymerisation (ROMP) erforscht. Durch Einsatz von chiralen, enantiomerenreinen Norbornenderivaten als Monomer konnte gezeigt werden, dass mit diesen Komplexen selektiv trans-isotaktische Polymere hergestellt werden können. Die beobachtete Selektivität ist dabei stark abhängig von der Ligandensphäre. Des Weiteren konnte vollständig hydriertes, syndiotaktisches Polydicyclopentadien hergestellt und erstmals mittels Schmelzspinnen zu Fasern versponnen werden. Ein weiterer Schwerpunkt der Dissertation lag auf der Entwicklung neuer Katalysatoren für die Olefinmetathese. So wurde eine neue Syntheseroute zur Herstellung kationischer Wolfram Imido Alkyliden NHC Komplexen entwickelt. Durch Anpassung der Ligandensphäre konnten luftstabile kationische Molybdän und Wolfram Imido Alkyliden NHC Komplexe hergestellt werden, die hohe Produktivitäten in der Olefinmetathese von Substraten mit verschiedenen sauerstoff- und schwefelhaltigen funktionellen Gruppen zeigen. Schließlich konnte der erste Molybdän Oxo Alkyliden NHC Komplex hergestellt und charakterisiert werden.

Download or read book Synthesis and Reactivity of Molybdenum Organometallic Complexes Supported by Amide Ligands written by Adam Scott Hock and published by . This book was released on 2007 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: (Cont.) Chapter 4. Reactivity of Molybdenum Imido Alkylidene Bis(pyrrolyl) Complexes. The Lewis amphoteric nature of the bis(pyrrolyl) complexes reported in chapter 3 is examined by demonstrating that these complexes react with both trimethylphosphine (at the molybdenum center) and B(C6Fs)3 (at a q5 pyrrolyl nitrogen). A structure of a trimethylphosphine adduct is reported. The bis(pyrrolyl) complexes are found to serve as excellent precursors for the in situ generation of olefin metathesis catalysts at room temperature and millimolar concentration. Furthermore, catalysts not accessible via traditional routes may now be accessed from bis(pyrrolyl) precursors. The bis(pyrrolyl) complexes also react with simple olefins such as ethylene and isobutylene to yield what are proposed to be a bimetallic dimer [Mo(NAr)(NC4H4)2]2 and a 2-propylidene complex via olefin metathesis. The impact of in situ synthesis on syn and anti isomer ratios is discussed as is reactivity with protic reagents other than alcohols.

Download or read book Metathesis Chemistry written by Yavuz Imamoglu and published by Springer Science & Business Media. This book was released on 2007-07-24 with total page 506 pages. Available in PDF, EPUB and Kindle. Book excerpt: Discover why olefin metathesis has asserted itself as a powerful strategy for obtaining fine chemicals, biologically active compounds, architecturally complex assemblies, new materials, and functionalized polymers. This volume compiles all the latest trends in olefin metathesis. In particular, you’ll learn how olefin metathesis has growing potential for the development of sustainable technologies with many possible industrial applications.

Download or read book Metathesis in Natural Product Synthesis written by Janine Cossy and published by John Wiley & Sons. This book was released on 2011-09-22 with total page 413 pages. Available in PDF, EPUB and Kindle. Book excerpt: Emphasizing the impact of metathesis in natural product synthesis through the different types of key reactions, this is a comprehensive view of a hot topic. Written by top international authors, this ready reference is clearly structured and packed with important information, including representative experimental procedures for practical applications. A real must-have for anyone working in natural product synthesis.

Download or read book Green Metathesis Chemistry written by Valerian Dragutan and published by Springer Science & Business Media. This book was released on 2009-10-26 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt: An outstanding international scientific event in the field of metathesis chemistry, the NATO ASI "Green Metathesis Chemistry: Great Challenges in Synthesis, Catalysis and Nanotechnology" has been recently organized in Bucharest, Romania (July 21- August 2, 2008). Numerous renowned scientists, young researchers and students, convened for two weeks to present and debate on the newest trends in alkene metathesis and identify future perspectives in this fascinating area of organic, organometallic, catalysis and polymer chemistry with foreseen important applications in materials science and technology. Following the fruitful practice of NATO Advanced Study Institutes, selected contributions covering plenary lectures, short communications and posters have been compiled in this special volume dedicated to this successful convention on green metathesis chemistry. General interest was primarily focused on relevant "green chemistry" features related to all types of metathesis reactions (RCM, CM, enyne metathesis, ADMET and ROMP). Diverse opportunities for green and sustainable technologies and industrial procedures based on metahesis have been identified. Largely exemplified was the utility of this broadly applicable strategy in organic synthesis, for accessing natural products and pharmaceuticals, and also its ability to fit in the manufacture of smart and nanostructured materials, self-assemblies with nanoscale morphologies, macromolecular engineering.

Download or read book Synthetic Investigations of Molybdenum Pyrrolide and Related Complexes written by Keith Michael Wampler and published by . This book was released on 2010 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: CHAPTER 1: A general introduction to olefin metathesis is given. Highlights include a historical perspective of the development of olefin metathesis and a detailed discussion of group VI imido alkylidene catalysts. CHAPTER 2: Monosiloxide and disiloxide complexes have been prepared through the addition of silanols to Mo(NR)(CHCMe 2Ph)(pyrrolyl) 2 species (R = 1 -adamantyl (Ad) or 2,6-i-Pr2C6H3 (Ar)). The silanols employed include (t-Bu)3SiOH (Hsilox), (i-Pr)3SiOH, (Me3Si)3SiOH, (t-Bu-0)3SiOH, Me2(t-Bu)SiOH, and Ph 3SiOH. The mono(silox) complex, Mo(NAr)(CHCMe 2Ph)(silox)(pyrrolyl) .(2a), could be isolated, while Mo(NAd)(CHCMe2Ph)(silox)(pyrrolyl) was observed in situ but could not be crystallized. Reaction of Mo(NAr)(CHCMe 2Ph)(OTf) 2(DME) with (silox)Li(THF) resulted in the formation of Mo(NAr)(CHCMe2Ph)(silox)(OTf) (3). Disiloxides that could be crystallized include Mo(NAd)(CHCMe 2Ph)(Silox)2 (1b), Mo(NAd)(CHCMe2Ph)[OSi(SiMe3)3]2 (5), Mo(NAd)(CHCMe 2Ph)[OSi(O-t-Bu) 3]2 (6), and Mo(NAr)(CHCMe 2Ph)[OSiMe2(t-Bu)] 2 (7); other disiloxide examples could be observed in situ, but could not be crystallized. Compound 2a reacts readily with (CF 3)Me2COH, (CF3)2MeCOH, (CF 3)2CHOH, ArOH, C6F5OH, ( - )-menthol, and ( - )-borneol to give compounds of the type Mo(NAr)(CHCMe 2Ph)(silox)(OR) (4a-g) in situ. No reaction was observed upon heating of lb under 5 atm of ethylene at 120 *C in toluene-d8 ; only at 240 'C in o-dichlorobenzene-d4 did lb react with ethylene to yield CH2=CHCMe2Ph, but the Mo-containing product could not be identified. Compound 2a reacts with ethylene at 120 'C to give Mo(NAr)(CH2)(silox)(pyr), while 4a-e react with ethylene at -60 'C; methylene species could be observed in several cases but could not be isolated. X-ray studies were carried out for lb and 2a. CHAPTER 3: Molybdenum imido alkylidene complexes which may be used as precursors for the in situ generation of molybdenum olefin metathesis catalysts are presented. Reaction of Mo(NR)(CHCMe 2Ph)(OTf)2(DME) (R = 1-adamantyl (Ad) or 2,6-i-Pr 2C6H3 (Ar)) with two equivalents of Li(ind) (ind = indolide) results in the formation of Mo(NR)(CHCMe 2Ph)(ind)2 (R = Ar, 1; Ad, 2). Unlike other molybdenum complexes of nitrogen containing heterocyclic ligands, 1 and 2 react productively with olefins. 1 and 2 react with alcohols to give previously characterized bisalkoxide olefin metathesis catalysts. Reaction of Li(3,5-R 2-pyrazolide) (R = t- Bu or Ph, R2pz) with Mo(NAr)(CHCMe 2Ph)(OTf) 2(DME) yields Mo(NAr)(CHCMe 2Ph)(3,5- R2pz)2 (R = t-Bu, 5; Ph, 6) in good yields. These complexes react with alcohols or the surface silanols of silica, to yield respectively bisalkoxy and surface monosiloxy olefin metathesis catalysts. The benzyl complexes Mo(NR)(CHCMe 2Ph)(CH2Ph)2 (R = Ar, 7; Ad, 8; Ar" = 9) have been prepared and structurally characterized. These complexes react with alcohols and phenols to give either monobenzyl monoalkoxide(aryloxide) species or trialkyl alkoxide(aryloxide) complexes. Additionally, several species that were found to not be precursors for the in situ generation of olefin metathesis catalysts are discussed. CHAPTER 4: Three substituted tris(pyrrolyl-a-methyl)amines (H3[Aryl 3TPA]) (Aryl = 2,4,6-C 6H2Me3 (Mes), la; 2,4,6-C 6H2(i-Pr)3 (Trip), 1b; 3,5-C 6H3(CF3)2 (ArF), 1c) have been prepared. An X-ray study of [Trip 3TPA]MoCl (2) shows it to be a distorted trigonal bipyramidal species in which the 2,4,6-triisopropylphenyl substituents surround and protect the apical chloride. Reaction of MoN(NMe 2)3 with H3[ArF3TPA] yields MoN(NMe2)-K3_[ArF3TPA] (3) in which only two of the ligand arms have metalated. The x-ray crystal structure revealed that the un-metalated pyrrole arm has a hydrogen bonding interaction with nitride ligand. Similarly, reaction of Mo(NMe2)4 with H3[ArF3TPA] yields Mo(NMe2)2-K3C[ArF3TPA] (3). Reaction of M(NMe 2)4 (M = Zr or Hf) with H3[ArF3TPA] results in the full metalation of the ligand to yield M(NMe2)(HNMe 2)[ArF 3TPA] (M = Zr, 5; Hf, 6), in which an equivalent of dimethylamine remains in the coordination sphere. CHAPTER 5: The monomeric, homoleptic molybdenum(III) complex molybdenum tris(2,5-dimethylpyrrolide) (1) has been prepared. Reduction with KC8 in THF yields the molybdenum(II) complex potassium [molybdenum tris(2,5-dimethylpyrrolide)] (2), while protonation with [H(OEt 2)2][BArF4] or [HNMe2Ph][B(C6F5)4] yields cationic species that contains an 9-3Hpyrrole ligand (3a and 3b). All of the complexes have been structurally characterized. The paramagnetic species have been characterized by EPR and CV. Additionally, a review of group VI pyrrolide complexes is given. APPENDIX A: The preparation and reactivity of polystyrene-supported molybdenum and tungsten imido alkylidene monoaryloxide monopyrrolide catalysts is presented. The reactivity and selectively of these complexes in the homodimerization of terminal olefins was found to be similar to their homogenous analogues. APPENDIX B: The synthesis and characterization of W(O)(CHCMe3)(Me2Pyr)2(PMe2Ph) (1), W(CCMe3)(OTf) 3(DME) (2), and [Li(OEt2)2][MoCl2(C4H3N-CH(=NAr)]) 2] (3) is described.

Download or read book Metathesis Polymerization of Olefins and Polymerization of Alkynes written by Yavuz Imamogammalu and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 443 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first NATO Advanced Study Institute on Olefin Metathesis and Polymerization Catalysts was held on September 10-22, 1989 in Akcay, Turkey. Based on the fundamental research of RRSchrock, RGrubbs and K.B.Wagener in the field of ring opening metathesis polymerization (ROMP), acyclic diene metathesis (ADMET) and alkyne polymerization, these areas gained growing interest within the last years. Therefore the second NATO-ASI held on metathesis reactions was on Ring Opening Metathesis Po lymerization of Olefins and Polymerization of Alkynes on September 3-16, 1995 in Akcay, Turkey. The course joined inorganic, organic and polymer chemists to exchange their knowledge in this field. This volume contains the main and short lectures held in Akcay. To include ADMET reactions better into the title of this volume we changed it into: Metathesis Polymerization of Olefins and Alkyne Polymerization. This volume is addressed to research scientists, but also to those who start to work in the area of olefin metathesis and alkyne polymerization. The topics of the course were: mechanism of ROMP reactions/ new catalysts for ROMP/ new products by ROMP/ new catalysts for ADMET/ new products by ADMETI degradation of polymer by metathesis reactions/ alkyne polymerization and metathesis/ industrial application of metathesis reactions. The Advanced Study Institute was generously sponsored by the Scientific Affairs Division of NATO and the editor gratefully acknowledges this sponsorship. We also thank the Members of the Local Organizing Committee for their engagement on a successful NATO-AS!.

Download or read book Synthesis of Molybdenum VI Alkylidene Complexes as Catalysts for Living Polymerizations of Terminal Acetylenes and Olefin Metathesis written by Harold Hamilton Fox and published by . This book was released on 1993 with total page 558 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Olefin Metathesis and Metathesis Polymerization written by K. J. Ivin and published by Elsevier. This book was released on 1997-01-07 with total page 489 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a follow-up to Ivins Olefin Metathesis, (Academic Press, 1983). Bringing the standard text in the field up to date, this Second Edition is a result of rapid growth in the field, sparked by the discovery of numerous well-defined metal carbene complexes that can act as very efficient initiators of all types of olefin metathesis reaction, including ring-closing metathesis of acyclic dienes, enynes, and dienynes; ring-opening metathesis polymerizationof cycloalkenes, acyclic diene metathesis polymerization; and polymerization of alkynes, as well as simple olefin metathesis. Olefin Metathesis and Metathesis Polymerization provides a broad, up-to-date account of the subject from its beginnings in 1957 to the latest applications in organic synthesis. The book follows the same format as the original, making it useful toteachers and to researchers, and will be of particular interest to those working in the fields of organic chemistry, polymer chemistry, organometallic chemistry, catalysis, materials science and chemical engineering. Discusses different classes of olefin metathesis and the choice of reaction conditions and catalyst Considers commercial processes with examples from existing and new technologies Provides a complete overview of the subject from its beginning to the present day