New Preparation of Organoaluminiums
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T. V. Rajanbabu, ACS Catal
T. V. (Babu) RajanBabu Department of Chemistry and Biochemistry Phone 614-688-3543 100 W. 18th Avenue, The Ohio State University FAX 614-292-1685 Columbus, OH 43210, USA e-mail: [email protected] Research Group Webpage: http://www.chemistry.ohio-state.edu/~rajanbabu/ Citations: https://scholar.google.com/citations?user=zjP0MPoAAAAJ&hl=en&oi=ao Education CMS College, Kottayam, Kerala University, India B. Sc. (Special) Indian Inst. Tech., Madras M. Sc. The Ohio State University (H. Shechter) Ph. D. Harvard University (R. B. Woodward) Postdoctoral Fellow Professional Experience 2009 - Kimberly Professor of Chemistry, The Ohio State University 1995 - 2009 Professor of Chemistry, The Ohio State University 1980 – 1994 Member of Research Staff and Research Fellow, DuPont Central Research Notable Honors Distinguished Alumnus, Indian Institute of Technology, Madras 2008 American Association for the Advancement of Science, Fellow 2012 Chemical Research Society of India Medal, 2013 I. Publications: Research Summaries Reviews in Periodicals 25. “In Pursuit of an Ideal Carbon-Carbon Bond-Forming Reaction. The Hydrovinylation of Alkenes”, RajanBabu, T. V. Synlett 2009, 853-885. doi: 10.1055/s-0028-1088213. 24. “Asymmetric Hydrovinylation Reaction”, RajanBabu, T. V. Chem. Rev. 2003, 10, 2845-2860. 23. “Asymmetric Catalysis in Water: Prospects and Problems of Using Hydroxyphosphines and Hydroxyphosphinites as Ligands”, RajanBabu, T. V.; Yan, Y. Y.; Shin, S. Curr. Org. Chem. 2003, 7, 1759-1773. 22. “Ligand Tuning as a Tool for the Discovery of New Catalytic Asymmetric Processes”, RajanBabu, T. V.; Casalnuovo, A. L.; Ayers, T. A.; Nomura, N.; Jin, J.; Park, H.; Nandi, M. Curr. Org. Chem. 2003, 7, 301-316. -
Synthesis, Characterization and Polymerization of Ethylene Using a Novel Soluble Magnesium-Titanium Catalyst*
Synthesis, characterization and polymerization of ethylene using a novel soluble magnesium-titanium catalyst* Ganugupati Satyanarayana and Swaminathan Sivaramt Division of Polymer Chemistry, National Chemical Laboratory, Pune 411008, India (Received 4 January 1993; revised 28 May 1993) A l:2 complex of MgCI2 and tetrahydrofuran (THF) was prepared by a simple Grignard decomposition reaction using Mg metal and 1,2-dichloroethane in THF as diluent. The MgC12.2THF complex formed a homogeneous solution with titanium-n-butoxide in xylene at 60°C. The soluble Mg-Ti complex in xylene polymerized ethylene under homogeneous conditions in the presence of organoaluminium compounds. The kinetic behaviour of the polymerization reaction was studied. It was observed that the presence of MgCI2 transformed the Ti centre from a dimerization to a polymerization catalyst. (Keywords: magnesium chloride; titanium-n-butoxide; magnesium-titanium catalyst) INTRODUCTION a Grignard decomposition reaction forms a soluble complex with titanium-n-butoxide, which in conjunction Solid catalysts based on anhydrous MgCI z and Ti halides with organoaluminium compound initiates ethylene have attracted considerable attention during the past polymerization under homogeneous conditions in xylene decade as components of high efficiency ethylene and as the solvent 11. This paper reports our results on the propylene polymerization catalysts 1. The role of MgC12 synthesis, characterization and polymerization of ethylene in these catalysts has been widely discussed in the using this novel soluble Mg-Ti catalyst. literature 2. There are, however, only a few reports of truly soluble Mg-Ti catalysts for olefin polymerization. Soga et al. prepared a soluble metal halide-2-ethylhexanol complex which, in conjunction with titanium-n-butoxide EXPERIMENTAL and diethylaluminium chloride, polymerized propylene 3. -
Doped Acetylene Polymer and Process for Production Thereof
European Patent Office © Publication number: 0 022 271 A1 Office europeen des brevets © EUROPEAN PATENT APPLICATION © Application number: 80103857.1 © Int. CI.3: C 08 L 49/00 C 08 J 3/20 © Date of filing: 07.07.80 //C08K3/10, C08K5/08, C08K5/09, H01B1/00 © Priority: 10.07.79 JP 86402/79 © Applicant: JAPAN SYNTHETIC RUBBER CO., LTD. 10.07.79 JP 8640379 11-24, Tsukiji-2-chome Chuo-ku 28.08.79 JP 108641/79 Tokyo(JP) © Inventor: Matsumura, Yoshio © Date of publication of application: 14-30, Tsukimino-8-chome 14.01.81 Bulletin 81/2 Yamato-shi(JP) © Designated Contracting States: © Inventor: Nozue, Ikuo DE FR GB NL 29, Aobadai-2-chome Midori-ku, Yokohama(JP) © Inventor: Ukachi, Takashi 29, Aobadai-2-chome Midori-ku, Yokohama(JP) © Representative: Beetz, sen., Richard, Dipl. -Ing. Patentanwalte Dipl. -Ing. R. Beetz sen. Dipl.-lng. K. Lamprecht;Dr. Ing. R. Beetz jr. et al, Rechtsanwalt Dipl.-Phys. Dr. jur. U. Heidrich Dr.-lng. W. Timpe; Dipl.-lng. J. Siegfried Dipl.-Chem. Dr.rer.nat.W. Schmitt-Fumian Steinsdorfstrasse 10 D-8000 Munchen 22(DE) © Doped acetylene polymer and process for production thereof. (57) Doped acetylene polymers are produced by immersing an acetylene polymer under an inert gas atmosphere in an organic solvent solution of a dopant selected from the group consisting of a platinum group metal complex, a carbonium salt, an oxonium salt and a parabenzoquinone derivative. According to this process, a doped acetylene polymer having any desired electrical conductivity can be produced and the doped acetylene polymer thus obtained has excellent proper- ties as an organic semiconductor material for solar batteries, various sensors, etc. -
Transmetalation
Organic Chemistry IV Organometallic Chemistry for Organic Synthesis Prof. Paul Knochel LMU 2015 1 OCIV Prüfung: Freitag 17. Juli 2015 9-11 Uhr Wieland HS Wiederholungsklausur: Donnerstag 17. September 2015 12-14 Uhr Baeyer HS 2 Recommended Literature 1. F. A. Carey, R. J. Sundberg, Advanced Organic Chemistry, Fifth Edition Part A and Part B, Springer, 2008, ISBN-13: 978-0-387-68346-1 2. R. Brückner, Organic Mechanisms, Springer, 2010, ISBN: 978-3-642- 03650-7 3. L. Kürti, B. Czako, Strategic applications of named reactions in organic synthesis, Elsevier, 2005, ISBN-13: 978-0-12-429785-2 4. N. Krause, Metallorganische Chemie, Spektrum der Wissenschaft, 1996, ISBN: 3-86025-146-5 5. R. H. Crabtree, The organometallic chemistry of transition metals, Wiley- Interscience, 2005, ISBN: 0-471-66256-9 6. M. Schlosser, Organometallics in Synthesis – A manual, 2nd edition, Wiley, 2002, ISBN: 0-471-98416-7 7. K. C. Nicolaou, T. Montagnon, Molecules that changed the world, Wiley- VCH, 2008, ISBN: 978-527-30983-2 8. J. Hartwig, Organotransition Metal Chemistry: From Bonding to Catalysis, Palgrave Macmillan, 2009, ISBN-13: 978-1891389535 9. P. Knochel, Handbook of Functionalized Organometallics, Volume 1 und 2, Wiley-VCH, 2005, ISBN-13: 978-3-527-31131-6 3 Importance of organometallics 4 Industrial production Industrial annual production of various organometallics Organometallic production [T / year] Si 700 000 Pb 600 000 Al 50 000 Sn 35 000 Li 900 5 Organometallic reagents and catalysts for the organic synthesis 6 Historic point of view 1757 - Louis Cadet de Gassicourt (parisian apothecary) E. Frankland (1848), University of Marburg, initial goal: synthesis of an ethyl radical Universität Marburg (1848) 7 Organometallic chemistry of the XIX century 8 Organometallic chemistry of the XIX century 9 Reactivity of the Grignard reagents 10 Historic point of view Victor Grignard (1900) Karl Ziegler (1919) 11 Historic point of view first transition metal organometallics: Hein (1919) 12 Historic point of view 1951 : synthesis of ferrocene Pauson (Scotland) 7. -
Directed Magnesiation and Zincation of Highly Substituted Alkenes and N-Heterocycles Using 2,2,6,6-Tetramethylpiperidyl Bases
Dissertation zur Erlangung des Doktorgrades der Fakultät für Chemie und Pharmazie der Ludwig-Maximilians-Universität München Directed Magnesiation and Zincation of Highly Substituted Alkenes and N-Heterocycles Using 2,2,6,6-Tetramethylpiperidyl Bases. Application to the Total Synthesis of Coelenterazine von Tomke Bresser aus Tegernsee 2011 Erklärung Diese Dissertation wurde im Sinne von § 13 Abs. 3 bzw. 4 der Promotionsordnung vom 29. Januar 1998 von Herrn Prof. Dr. Paul Knochel betreut. Ehrenwörtliche Versicherung Diese Dissertation wurde selbständig und ohne unerlaubte Hilfe bearbeitet. München, 24.03.2011 …..…………………………………… Tomke Bresser Dissertation eingereicht am 24.03.2011 1. Gutachter: Prof. Dr. Paul Knochel 2. Gutachter: Prof. Dr. M. Heuschmann Mündliche Prüfung am 13.05.2011 This work was carried out from May 2008 to May 2011 under the guidance of Prof. Dr. Paul Knochel at the Department Chemie und Pharmazie of the Ludwig-Maximilians-Universität, Munich. Firstly, I would like to thank Prof. Dr. Paul Knochel for giving me the opportunity to do my PhD. in his group, for his generous support and guidance in the course of my scientific research. I am also very grateful to Prof. Dr. Manfred Heuschmann for agreeing to be the second reviewer of this thesis as well as Prof. Dr. Heinz Langhals, Prof. Dr. Konstantin Karaghiosoff, Prof. Dr. Klaus Theodor Wanner and Prof. Dr. Rudolf Knorr for their interest shown in this manuscript by accepting to be referees. I really would like to thank Andreas J. Wagner and Laurin Melzig for the careful correction of this manuscript. I thank all past and present co-workers I have met in the Knochel’s group for their kindness and their help. -
Functionalization of Arenes and Heteroarenes by Metalation with Tmp-Bases Or Metal Insertion
Dissertation zur Erlangung des Doktorgrades der Fakultät für Chemie und Pharmazie der Ludwig-Maximilians-Universität München FUNCTIONALIZATION OF ARENES AND HETEROARENES BY METALATION WITH TMP-BASES OR METAL INSERTION AND SYNTHESIS OF TETRASUBSTITUTED ALKENYL SULFIDES VIA A CU(I)- MEDIATED CARBOMETALATION von Cora Dunst aus Starnberg 2011 Erklärung Diese Dissertation wurde im Sinne von § 13 Abs. 3 bzw. 4 der Promotionsordnung vom 29. Januar 1998 (in der Fassung der sechsten Änderungssatzung vom 16. August 2010) von Herrn Prof. Dr. Paul Knochel betreut. Ehrenwörtliche Versicherung Diese Dissertation wurde selbständig, ohne unerlaubte Hilfe erarbeitet. München, den 29.07.2011 ............................................. Cora Dunst Dissertation eingereicht am 3.08.2011 1. Gutachter: Prof. Dr. Paul Knochel 2. Gutachter: Prof. Dr. Manfred Heuschmann Mündliche Prüfung am 13.09.2011 TO MY PARENTS & GRANDPARENTS This work was carried out from May 2008 to June 2011 under the guidance of Prof. Dr. Paul Knochel at the Department Chemie und Pharmazie of the Ludwig-Maximilians-Universität, Munich. First, I would like to thank Prof. Dr. Paul Knochel for giving me the opportunity to do my Ph.D. in his group, for his generous support and guidance in the course of my scientific research. I am also grateful to Prof. Dr. Manfred Heuschmann for agreeing to be the second reviewer of this thesis, as well as Prof. Dr. Konstantin Karaghiosoff, Prof. Dr. Herbert Mayr, Prof. Dr. Heinz Langhals and Prof. Dr. Thomas Bein for their interest shown in the manuscript by accepting to be referees. I really would like to thank Dr. Laurin Melzig, Thomas Kunz, Nadja Barl and Sebastian Bernhardt for the careful correction of this manuscript. -
Acroseal Packaging Your Solution for Air- and Moisture- Sensitive Reagents
AcroSeal Packaging Your solution for air- and moisture- sensitive reagents Extra dry solvents Deuterated solvents Organometallic compounds Reagents in solution Organics Introduction Since the launch of AcroSealTM packaging we have introduced a new septum, which helps preserve product quality for longer. In addition, our AcroSeal portfolio has been expanded to include a broad range of solvents, organometallics, reagents in solution and organic compounds. In this brochure we have categorized our products under chemical families to make it easier to locate the product you need. Introduction Page no. AcroSeal packaging highlights 3 AcroSeal packaging performance 4 New 25mL AcroSeal packaging 4 Solvents Extra dry solvents 5-7 Solvents for biochemistry 7 Deuterated solvents 7 Organometallics Grignard reagents 8-10 Organoaluminiums 11 Organolithiums 11 Organosodiums 12 Organotins 12 Organozincs 12 Reagents in solution Amines 13 Boranes 13 Halides 14-15 Hydrides 15 Oxides 16 Silanes 16 Other reagents in solution 17 Organics Aldehydes 18 Amines 18 Epoxides 18 Halides 19 Phosphines 19 Silanes 19 Other organics 20 How to use AcroSeal packaging 21 Alphabetical index 22-23 2 Introduction AcroSeal packaging: drier reagents for longer When using air- and moisture-sensitive solvents and reagents, it is essential that these products are not only as dry as possible when you first use them, but they should remain dry in storage as well. Through the innovative quadrant-style screw cap and specially designed septum, AcroSeal packaging ensures that you have access to high-quality and low-moisture products every use, guaranteeing improved yield and consistency of your research experiments while reducing chemical waste. AcroSeal packaging highlights New septum developed from a polymeric elastomer with an inert fluoropolymer-coated surface, preserves product quality for longer with better re-seal around needle punctures. -
Acroseal Packaging Your Solution for Air- and Moisture- Sensitive Reagents
AcroSeal Packaging Your solution for air- and moisture- sensitive reagents Extra dry solvents Deuterated solvents Organometallic compounds Reagents in solution Organics Introduction Since the launch of AcroSealTM packaging we have introduced a new septum, which helps preserve product quality for longer. In addition, our AcroSeal portfolio has been expanded to include a broad range of solvents, organometallics, reagents in solution and organic compounds. In this brochure we have categorized our products under chemical families to make it easier to locate the product you need. Introduction Page no. AcroSeal packaging highlights 3 AcroSeal packaging performance 4 New 25mL AcroSeal packaging 4 Solvents Extra dry solvents 5-7 Solvents for biochemistry 7 Deuterated solvents 7 Organometallics Grignard reagents 8-10 Organoaluminiums 11 Organolithiums 11 Organosodiums 12 Organotins 12 Organozincs 12 Reagents in solution Amines 13 Boranes 13 Halides 14-15 Hydrides 15 Oxides 16 Silanes 16 Other reagents in solution 17 Organics Aldehydes 18 Amines 18 Epoxides 18 Halides 19 Phosphines 19 Silanes 19 Other organics 20 How to use AcroSeal packaging 21 Alphabetical index 22-23 2 Introduction AcroSeal packaging: drier reagents for longer When using air- and moisture-sensitive solvents and reagents, it is essential that these products are not only as dry as possible when you first use them, but they should remain dry in storage as well. Through the innovative quadrant-style screw cap and specially designed septum, AcroSeal packaging ensures that you have access to high-quality and low-moisture products every use, guaranteeing improved yield and consistency of your research experiments while reducing chemical waste. AcroSeal packaging highlights New septum developed from a polymeric elastomer with an inert fluoropolymer-coated surface, preserves product quality for longer with better re-seal around needle punctures. -
C.V. De Paul Knochel
Paul Knochel Élu Membre le 11 décembre 2007, dans la section de chimie Paul Knochel, né en 1955, est Professeur de chimie organique à Ludwig-Maximilians Universität à Munich (Allemagne) depuis 1999. Études et diplômes 1972-1979 Élève à l’École nationale supérieure de chimie à Strasbourg 1982 Docteur ès sciences ETH, à Zürich (Suisse) Carrière 1982-1986 Chargé de recherche au CNRS, Université Pierre et Marie Curie à Paris 1986-1987 Séjour post-doctoral à Princeton University, New Jersey (États-Unis) 1988-1992 Professeur assistant, puis Professeur titulaire à l’University de Michigan, Ann Arbor, Michigan (États-Unis) 1992-1999 Professeur de chimie organique à Philipps-Universität à Marburg (Allemagne) Depuis 1999 Professeur de chimie organique à Ludwig-Maximilians Universität à Munich (Allemagne) Œuvre scientifique Paul Knochel a consacré ses recherches au développement de nouvelles méthodes de synthèse et de catalyse utilisant des espèces organométalliques. Ses méthodes ont été appliquées à la préparation d’intermédiaires de produits pharmaceutiques ou de produits naturels ayant des propriétés biologiques. Les molécules contenant une liaison carbone-magnésium ou carbone-zinc sont compatibles avec un grand nombre de groupements fonctionnels organiques, mais possèdent aussi une bonne réactivité chimique ce qui permet la synthèse de diverses molécules organiques. La synthèse de composés organométalliques du zinc et du magnésium est d’une grande importance en synthèse organique, car ces molécules sont compatibles avec la présence d’un grand nombre de groupements fonctionnels et permet par la réaction avec des molécules électrophiles d’obtenir une variété de molécules polyfonctionnelles ayant une importance pour leurs propriétés biologiques ou comme matériaux. -
Reactions of Organoaluminium Compounds with Electron Donors
REACTIONS OF ORGANOALUMINIUM COMPOUNDS WITH ELECTRON DONORS S. P ASYNKIEWICZ Institute of Organic Chemistry and Technology, Technical University ( Politechnika). Warsaw, Poland ABSTRACT The application of organoaluminium compounds as components of organa metallic or complex systems is connected with a knowledge of their reactions with electron donors. Reactions with nitriles, ketones, esters, ethers, alkyl chlorides, vinyl chloride, and acid chlorides as the electron donors were investigated. The first stage of the reaction of an organoaluminium compound with an electron donor involves formation of the corresponding donor-acceptor complex. A knowledge of the structure of the formed complexes is very important for an elucidation of the reaction course and mechanism. The heat of formation, composition, and molecular weight of the corresponding complexes were determined, and their i.r. and n.m.r. spectra were studied. From these investigations general conclusions were made concerning, the influence of the Lewis acidity of the organoaluminium compound on the structure of its complexes and on their reactivity; the effect of reactant mole ratio (organoaluminium compound to electron donor) on the reaction course, and thc influence of the molecular structure of the complex and of dislocation of electrons on the reaction mechanism. Hallwachs and Schafarik1 synthesized the first organoaluminium com pound 120 years ago. By treating aluminium with ethyl iodide they pre pared ethylaluminium sesqui-iodide. However, the chemistry of organo aluminium compounds received little attention until the investigations of Ziegler and his collaborators. in about 1950. The development of the direct synthesis of organaalumini um compounds from aluminium. ethylene, and hydrogen, and elaboration of normal pressure polymerization of ethylene, aroused great interest. -
Unique Properties of Aluminium and Its Compounds
Unique properties of some selected p block elements (Reading material for CML 514) Unique properties of Aluminium and its compounds Aluminium is the third most abundant metal on the earth’s crust and it is found to be present in as many as 270 minerals. Aluminosilicates form a major component of the earth’s crust. Aluminium is one of the lightest metals with low density and resists reactivity by forming a thin passivation layer of aluminium oxide (about 4 nm thickness) on any exposed aluminium surface. Although pure aluminium has a very low yield strength (the stress at which a material begins to deform plastically) its alloys with metals such as copper, magnesium and zinc have very high yield strength comparable to that of steel. Many of its alloys have very good strength to weight ratio and therefore find applications where a strong light metal is required such as aeroplanes, modern trains and racing cars. It is a good thermal and electrical conductor, possessing 59% of the electrical conductivity of copper, while its density is only 30% that of copper. AlCl3 is a very good Lewis acid and a reagent suited specifically for alkylation and acylation reactions of aromatics (Friedel–Crafts reaction). Sodium salts of long chain aryl sulphonates (for example, dodecyl benzenesulphonate), whose aryl–alkyl unit is made using AlCl3 catalyst, are used as surfactants in laundry detergents. Aluminium sulfate is an important flocculating agent in the purification of water and a sizing agent of paper replacing potassium alum. Positively charged aluminium cations neutralise the negative charge on colloidal particles in water leading to mutual adsorption and flocculation. -
Beryllium Chloride Apparatus. Figure M
Durham E-Theses Organic and hydride chemistry of beryllium Bell, N.A How to cite: Bell, N.A (1964) Organic and hydride chemistry of beryllium, Durham theses, Durham University. Available at Durham E-Theses Online: http://etheses.dur.ac.uk/8894/ Use policy The full-text may be used and/or reproduced, and given to third parties in any format or medium, without prior permission or charge, for personal research or study, educational, or not-for-prot purposes provided that: • a full bibliographic reference is made to the original source • a link is made to the metadata record in Durham E-Theses • the full-text is not changed in any way The full-text must not be sold in any format or medium without the formal permission of the copyright holders. Please consult the full Durham E-Theses policy for further details. Academic Support Oce, Durham University, University Oce, Old Elvet, Durham DH1 3HP e-mail: [email protected] Tel: +44 0191 334 6107 http://etheses.dur.ac.uk ORGANIC AND HYDRIDE CHEMISTRY OF BERYLLIUM oy N.A. BELL. A thesis.submitted for the Degree of Doctor of Philosophy in the University- of Durham. June 196^-. I Acknowledgements. The author wishes to express his sincere thanks to Professor G-.E. Coates, M.A., D.Sc., F.R.I.C., under whose direction this research was carried out, for his constant encouragement and extremely valuable advice. ' The author is also indebted to the Department of Scien• tific and Industrial Research for a Research StudiSntshrp. I I Memorandum. The work described in this thesis was carried out in the University of Durham between September 19b1 and May 196A-.