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Wittig Georg:     more detail

Wittig Chemistry: Topics in Current Chemistry by H. J. Bestmann, 1983-07 Tu Braunschweig Faculty: Richard Dedekind, Kurt Tank, Manfred Eigen, Georg Wittig, Nikolaus Hofreiter, Henning Kagermann, Herbert Freundlich Ueber Die Termische Veranderlichkeit Des Daniellschen Elements Und Des Accumulators (INAUGURAL-DISSERTATION ZUR ERLANGUNG DER PHILOSOPHISCHEN DOCTORWURDE VORGELEGT DER HOHEN PHILOSOPHISCHEN FACULTAT DER GEORG-AUGUSTS-UNIVERSITAT ZU GOTTINGEN, GERMAN LANGUAGE, GERMANY) by GEORG MEYER, 1888 Jahrbuch der Akademie der Wissenschaften in Gottingen (fur das Jahr 1965) by Oskar Glemser, Heinrich Matthaei, et all 1966 Electromagnetische Rotationserscheinungen Flussiger Leiter (INAUGURAL-DISSERTATION ZUR ERLANGUNG DER DOKTORWURDE EINER HOHEN PHILOSOPHISCHEN FACULTAT DER GEORG-AUGUSTS-UNIVERSITAT ZU GOTTINGEN, GERMAN LANGUAGE, GERMANY) by FRIEDRICH SCHUMANN, 1887

lists with details

1. Georg Wittig - Curriculum Vitae
   Sciences, German Academy of the Natural Scientist Leopoldina Halle. FromNobel Lectures, Chemistry 19711980. georg wittig died in 1987.  
   http://www.nobel.se/chemistry/laureates/1979/wittig-cv.html
   
   Extractions: Honorary Doctorate from the Sorbonne in 1957; Honorary Doctorate from the Universities of and Hamburg in 1962; Adolf von Baeyer Memorial Medal from the German Chemical Society in 1953; Silver Medal from the University of Helsinki University of Zurich University of Louvain ) in 1972; Roger Adams Award from the American Chemical Society in 1973; Karl Ziegler Prize in 1975; Honorary Member of the Swiss Chemical Society in 1963; Honorary Member of the New York Academy of Sciences German Academy of the Natural Scientist Leopoldina Halle From Nobel Lectures , Chemistry 1971-1980.

2. Chemistry 1979
   The nobel Prize in Chemistry 1979. Herbert C. Brown, georg wittig.1/2 of the prize, 1/2 of the prize. USA, Federal Republic of Germany.  
   http://www.nobel.se/chemistry/laureates/1979/

3. Georg Wittig Winner Of The 1979 Nobel Prize In Chemistry
   georg wittig, a nobel Prize Laureate in Chemistry, at the nobel PrizeInternet Archive. georg wittig. 1979 nobel Laureate in Chemistry  
   http://almaz.com/nobel/chemistry/1979b.html

4. Index Of Nobel Laureates In Chemistry
   wittig, georg, 1979. Woodward, Robert Burns, 1965. Wüthrich, Kurt, 2002. Zewail,Ahmed H, 1999. Ziegler, Karl, 1963. Zsigmondy, Richard Adolf, 1925. Back to TheNobel  
   http://almaz.com/nobel/chemistry/alpha.html

5. Georg Wittig
   Historical Aspects of Chemistry. wittig, georg German chemist, nobel Prizewinner1979 for the wittig Reaction Born Berlin, 16 June, 1897 Died 26 August, 1987.  
   http://www.sunderland.ac.uk/~hs0bcl/h_gw.htm
   
   Extractions: Died: 26 August, 1987 Wittig discovered his versatile route to alkenes via ylide molecules - the Wittig reaction - in 1949. In 1967, he won the Otto Hahn Prize. In 1979, Herbert C. Brown and Georg Wittig were jointly awarded the Nobel Prize: for their development of the use of boron- and phosphorus-containing compounds, respectively, into important reagents in organic synthesis. See this page at Heidelberg for a picture and some more biographical details (in German). History top Home Ol' Spidey : page last changed 5 April 1997

6. The Wittig Reaction
   georg wittig well deserved his nobel Prize in 1979 and is a hero of mine becausehe was a doddering 56 years old when he discovered this very versatile  
   http://www.sunderland.ac.uk/~hs0bcl/org8.htm
   
   Extractions: How to Tackle Organic Syntheses - A Beginner's Guide by Prof Otto Meth-Cohn The Wittig Reaction Georg Wittig well deserved his Nobel Prize in 1979 - and is a hero of mine because he was a doddering 56 years old when he discovered this very versatile reaction. The idea is very simple - as are all good ideas. Phosphorus is a second row element - in Group 5 - like nitrogen - but unlike nitrogen can expand its valency from 3 to 4, 5, or even 6. The stable 5 valency is met in compounds like phosphoric acid and PCl . What Wittig discovered was that phosphines (the P equivalent of amines) easily form phosphonium salts with alkyl halides and that these salts readily lose HX with a strong base. The product is called an ylide or a phosphorane . The ylide is a very polar molecule with a carbanionic carbon (aren't carbanions useful?!). How to make a phosphorus ylide This ylide reacts enthusiastically with an aldehyde or ketone to give an alkene. How to make an alkene using the Wittig reaction You'll notice that the reaction involves formation of a 4-membered ring intermediate and that the very stable phosphine oxide is a by-product. The great thing for hard-pressed student synthesizers is that the alkene is made up by linking an aldehyde or ketone to an alkyl halide replacing the O and the halide by a double bond. Just snip the alkene at the double bond and make one half an aldehyde or ketone and the other half an alkyl halide.

7. Wittig, Georg
   wittig, georg. Heidelberg, W.Ger.), German chemist whose studies of organic phosphoruscompounds won him a share (with Herbert C. Brown) of the nobel Prize for  
   http://www.britannica.com/nobel/micro/642_94.html
   
   Extractions: (b. June 16, 1897, Berlin, Ger.d. Aug. 26, 1987, Heidelberg, W.Ger.), German chemist whose studies of organic phosphorus compounds won him a share (with Herbert C. Brown ) of the Nobel Prize for Chemistry in 1979. In investigating reactions involving carbanions, negatively charged organic species, Wittig discovered a class of organic phosphorus compounds called ylides that mediate a particular type of reaction that became known as the Wittig reaction. This reaction proved of great value in the synthesis of complex organic compounds such as vitamins A and D , prostaglandins, and steroids.

8. Nobel Prize Winners For Chemistry
   substances. wittig, georg, West Germany, introduction of compoundsof boron and phosphorus in the synthesis of organic substances. 1980,  
   http://www.britannica.com/nobel/table/chem.html
   
   Extractions: Year Article Country* Achievement Hoff, Jacobus Henricus van't The Netherlands laws of chemical dynamics and osmotic pressure Fischer, Emil Germany work on sugar and purine syntheses Arrhenius, Svante Sweden theory of electrolytic dissociation Ramsay, Sir William U.K. discovery of inert gas elements and their places in the periodic system Baeyer, Adolf von Germany work on organic dyes, hydroaromatic compounds Moissan, Henri France isolation of fluorine; introduction of Moissan furnace Buchner, Eduard Germany discovery of noncellular fermentation Rutherford, Ernest U.K. investigations into the disintegration of elements and the chemistry of radioactive substances Ostwald, Wilhelm Germany pioneer work on catalysis, chemical equilibrium, and reaction velocities Wallach, Otto Germany pioneer work in alicyclic combinations Curie, Marie France discovery of radium and polonium; isolation of radium Grignard, Victor France discovery of the Grignard reagents Sabatier, Paul France method of hydrogenating organic compounds Werner, Alfred

9. Wittig, Georg. The Columbia Encyclopedia, Sixth Edition. 2001
   wittig, georg. During his career, wittig was a professor at the universities of Braunschweig Heshared the 1979 nobel Prize in Chemistry with Herbert C. Brown  
   http://www.bartleby.com/65/wi/Wittig-G.html
   
   Extractions: Select Search All Bartleby.com All Reference Columbia Encyclopedia World History Encyclopedia World Factbook Columbia Gazetteer American Heritage Coll. Dictionary Roget's Thesauri Roget's II: Thesaurus Roget's Int'l Thesaurus Quotations Bartlett's Quotations Columbia Quotations Simpson's Quotations English Usage Modern Usage American English Fowler's King's English Strunk's Style Mencken's Language Cambridge History The King James Bible Oxford Shakespeare Gray's Anatomy Farmer's Cookbook Post's Etiquette Bulfinch's Mythology Frazer's Golden Bough All Verse Anthologies Dickinson, E. Eliot, T.S. Frost, R. Hopkins, G.M. Keats, J. Lawrence, D.H. Masters, E.L. Sandburg, C. Sassoon, S. Whitman, W. Wordsworth, W. Yeats, W.B. All Nonfiction Harvard Classics American Essays Einstein's Relativity Grant, U.S. Roosevelt, T. Wells's History Presidential Inaugurals All Fiction Shelf of Fiction Ghost Stories Short Stories Shaw, G.B. Stein, G. Stevenson, R.L. Wells, H.G. Reference Columbia Encyclopedia PREVIOUS NEXT ... BIBLIOGRAPHIC RECORD The Columbia Encyclopedia, Sixth Edition. Wittig, Georg

10. Brown, Herbert Charles. The Columbia Encyclopedia, Sixth Edition. 2001
    of Chicago, 1938. A professor at Wayne State Univ. (1943–47) and Purdue Univ.(1947–), he shared the 1979 nobel Prize in Chemistry with georg wittig.  
    http://www.bartleby.com/65/br/BrownHC.html
    
    Extractions: Select Search All Bartleby.com All Reference Columbia Encyclopedia World History Encyclopedia World Factbook Columbia Gazetteer American Heritage Coll. Dictionary Roget's Thesauri Roget's II: Thesaurus Roget's Int'l Thesaurus Quotations Bartlett's Quotations Columbia Quotations Simpson's Quotations English Usage Modern Usage American English Fowler's King's English Strunk's Style Mencken's Language Cambridge History The King James Bible Oxford Shakespeare Gray's Anatomy Farmer's Cookbook Post's Etiquette Bulfinch's Mythology Frazer's Golden Bough All Verse Anthologies Dickinson, E. Eliot, T.S. Frost, R. Hopkins, G.M. Keats, J. Lawrence, D.H. Masters, E.L. Sandburg, C. Sassoon, S. Whitman, W. Wordsworth, W. Yeats, W.B. All Nonfiction Harvard Classics American Essays Einstein's Relativity Grant, U.S. Roosevelt, T. Wells's History Presidential Inaugurals All Fiction Shelf of Fiction Ghost Stories Short Stories Shaw, G.B. Stein, G. Stevenson, R.L. Wells, H.G. Reference Columbia Encyclopedia PREVIOUS NEXT ... BIBLIOGRAPHIC RECORD The Columbia Encyclopedia, Sixth Edition. Brown, Herbert Charles

11. Wittig, Georg
    wittig, georg, 1897–1987, German chemist, Ph.D. Univ During his career, wittig wasa professor at the He shared the 1979 nobel Prize in Chemistry with Herbert  
    http://www.infoplease.com/cgi-bin/id/A0852563

12. Wittig, Georg F. K.
    peopleBiography—People—W wittig, georg FK chemist, nobel laureateBirthplace Berlin, Germany Born 1897 Died 1987 Previous  
    http://www.infoplease.com/ipa/A0301540.html

13. FECS Millennium Project - Wittig
    wittig, georg Born Berlin (Germany), 1897 Died Heidelberg (Germany), 1987. wittigstudied in Tübingen and Marburg. C. Brown he was awarded the nobel Prize.  
    http://www.chemsoc.org/networks/enc/fecs/Wittig.htm

14. Georg Wittig
    Translate this page à l’institut de professeur H. Staudinger (prix nobel, 1953) à georg Wittigmatérialisa principalement ses recherches à Tübingen et à Heidelberg.  
    http://membres.lycos.fr/xjarnot/Chimistes/Wittig.html
    
    Extractions: W ittig Georg Les publications de Georg Wittig dans le domaine de la chimie se comptent par centaines. Parmi celles-ci, certaines ont conduit à la découverte de réactifs ou de réactions qui portent son nom. Citons en particulier, le réactif de Wittig : le tétraphénylborate de sodium [(C H B] Na N =CH A partir de 1953, date à laquelle fut publiée sa réaction, les distinctions honorifiques se succédèrent pour Georg Wittig à un rythme particulièrement soutenu. le prix Nobel de chimie pour la réaction Réaction de Wittig pour les cétones Wittig : prix Nobel de chimie en 1979 Pour tous problèmes ou remarques, écrivez au webmaster

15. Tous Les Prix Nobel De Chimie
    Prix nobels, Alfred nobel. A. Kurt Alder. Sydney Altman. Christian B. Anfinsen. RichardWillslater. Adolf Otto Reinhold Windaus. georg wittig. Robert Burns Woodward. Y.  
    http://membres.lycos.fr/xjarnot/Chimistes/Prix_Nobel_alphabetique.html

16. Wittig, Georg
    wittig, georg (18971987 from carbonyl compounds is a reaction often termed the wittigsynthesis For this achievement he shared the 1979 nobel Prize for Chemistry  
    http://www.cartage.org.lb/en/themes/Biographies/MainBiographies/W/Wittig/1.html
    
    Extractions: In the Wittig reaction, which he first demonstrated 1954, a carbonyl compound (aldehyde or ketone) reacts with an organic phosphorus compound, an alkylidenetriphenylphosphorane, (C6H5)3P=CR2, where R is a hydrogen atom or an organic radical. The alkylidene group (=CR2) of the reagent reacts with the oxygen atom of the carbonyl group to form a hydrocarbon with a double bond, an olefin (alkene). In general:

17. Nobel Laureates In Chemistry By Alphabetical Order
    Themes Science Chemistry About Chemistry Generalities nobel Laureatesin Chemistry by Alphabetical order. Name, Year Awarded. wittig, georg, 1979.  
    http://www.cartage.org.lb/en/themes/Sciences/Chemistry/Aboutchemistry/AlphaNobel

18. Wittig, Georg (1897-1987), Chimiste Allemand
    Translate this page georg wittig (1897-1987). Chimiste allemand. wittig a reçu le prix nobel de chimieen 1979, conjointement à l'Américain Herbert Brown. LISTE. HOME.  
    http://isimabomba.free.fr/biographies/chimistes/wittig.htm

19. Les Prix Nobel De Chimie
    Translate this page Les Prix nobel de Chimie. Scientifiques. Nationalités. 1901. Jacobus Henricus Van'tHoff. Royaume-Uni. 1979. Herbert Brown georg wittig. Royaume-Uni Allemagne. 1980.  
    http://isimabomba.free.fr/prix_nobel/prix_nobel.htm
    
    Extractions: Les Prix Nobel de Chimie Scientifiques Jacobus Henricus Van't Hoff Pays-Bas Emil Hermann Fischer Allemagne August Svante Arrhenius Sir William Ramsay Royaume-Uni Adolf Von Baeyer Allemagne Henri Moissan France Eduard Buchner Allemagne Lord Ernest Rutherford Royaume-Uni Wilhelm Ostwald Allemagne O. Wallach Allemagne Marie Curie France Victor Grignard

20. Herbert C. Brown And Georg Wittig
    1979. To see pictures of HC Brown and georg wittig please go to .http//nobel.sdsc.edu/laureates/chemistry1979.html. A biography  
    http://www.brynmawr.edu/Acads/Chem/mnerzsto/brownwittig.htm

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