1. Biographies Of Otto Paul Hermann Diels Biographies of Diels Otto Paul Hermann and more Diels Otto Paul Hermann biography. http://www.biography-center.com/biographies/5769-Diels_Otto_Paul_Hermann.html

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2. Diels, Otto Paul Hermann - Hutchinson Encyclopedia Article About In 1927 Diels dehydrogenated cholesterol to produce ‘Diels hydrocarbon’ (C 18 H 16), an aromatic hydrocarbon closely related to the skeletal structure of all steroids, of which http://encyclopedia.farlex.com/Diels, Otto Paul Hermann

3. Diels - Definition And More From The Free Merriam-Webster Dictionary Definition of word from the MerriamWebster Online Dictionary with audio pronunciations, thesaurus, Word of the Day, and word games. http://mw3.merriam-webster.com/dictionary/diels

4. Diels, Otto Paul Hermann Encyclopedia Topics | Reference.com Copy paste this link to your blog or website to reference this page http://www.reference.com/browse/diels, otto paul hermann

5. Chemistry - Links For Chemists - Topics - Biographies Diels, Otto Paul Hermann; Dirac, Paul (b.1902 d.1984) Djerassi, Carl US; Dogonadze, Revaz R. Dogonadze, Revaz R. GE; Dogonadze, Revaz R. IL; Dumas, Jean Baptiste Andre http://www.liv.ac.uk/Chemistry/Links/refbiog.html

Links for Chemists Chemistry section of the WWW Virtual Library Virtual Library Science Chemistry : Biographies of Famous Chemists Unless otherwise stated, the biographies listed below are provided and listed with the kind permission of the The Nobel Foundation . If you know of any biographies of Chemists or scientists whose work has advanced chemistry, that we do not list, please inform us via our comments form Alder, Kurt Altman, Sidney (1939 - ) Altman, Sid Altman, Sid @ Science.CA @ Wikipedia @ St. Andrews UK Anfinsen, Christian B. Arrhenius, Svante August (1859-1927) Arrhenius, Svante August Arrhenius, Svante August IL Arrhenius, Svante August Arfwedson, Johan August Astbury, William T. (1898-1961) @ Leeds UK Aston, Francis William Avogadro, Lorenzo Romano AMADEO Carlo, comte de Quaregna et de Ceretto (1776-1856) Avogadro, Amedeo @ CorrosionDoctors.org Avogadro, Amadeo @ Torino IT Baekeland, Leo Hendrik @ Time Magazine US von Baeyer, Johann Friedrich Wilhelm Adolf Barton, Sir Derek Harold Richard Balmer, Johann Jakob (b.1825 - d.1898) @ St Andrews UK Beckman, Arnold Orville

6. Otto Diels - Biography Nobelprize.org, The Official Web Site of the Nobel Prize http://nobelprize.org/nobel_prizes/chemistry/laureates/1950/diels-bio.html

Home FAQ Press Contact Us ... Nobel Prize in Chemistry Otto Diels - Biography About the Nobel Prizes Facts and Lists Nobel Prize in Physics Nobel Prize in Chemistry ... Nobel Prize Award Ceremonies Sort and list Nobel Prizes and Nobel Laureates Create a List All Nobel Prizes Nobel Prize Awarded Organizations Women Nobel Laureates Nobel Laureates and Universities Prize category: Physics Chemistry Medicine Literature Peace Economics The Nobel Prize in Chemistry 1950 Otto Diels, Kurt Alder The Nobel Prize in Chemistry 1950 Summary Presentation Speech Speed Read ... Banquet Speech Biography Otto Paul Hermann Diels was born in Hamburg, Germany, on January 23, 1876. When he was two years of age the family moved to Berlin, where his father was appointed to a professorship. His early education, from 1882 to 1895, was at the Joachimsthalsches Gymnasium, Berlin. In 1895 he went to Berlin University where he studied chemistry, together with other science subjects, under Emil Fischer , graduating in 1899. He was at once appointed assistant at the Institute of Chemistry at Berlin University, becoming a lecturer in 1904. Promotion to Professor followed in 1906, and he was appointed Head of Department in 1913. He became Professor at the University of Berlin in 1915 but, the following year, moved to the University of Kiel as Professor and Director of the Institute of Chemistry. There he remained until his retirement in 1945. His earliest research was in the field of inorganic chemistry, where he was the discoverer of an oxide of carbon having some unusual properties - carbon suboxide. His subsequent work was in the domain of organic chemistry. He was responsible for introducing the use of selenium as a specific reagent for the dehydrogenation of hydroaromatic compounds (1927). This proved to be a very useful tool in elucidating chemical structures in the complicated steroid series, where his name is associated with the hydrocarbon 3'-methyl-1,2-cyclopentenophenanthrene. Diels obtained this skeletal steroid structure by dehydrogenating cholesterol, and other members of the series, with selenium.

7. Biography-center - Letter D • Didrikson Mildred • Diederich Hunt • Dieffenbach Johann Friedrich • Diehl Charles • Dielmann Henry B., Sr. • Dielmann Leo Maria Joseph • Diels Otto • Diels Otto Paul Hermann http://www.biography-center.com/d-4.html

8. Diels, Otto Paul Hermann | Definition Of Diels, Otto Paul Hermann | HighBeam.com Find out what Diels, Otto Paul Hermann means Complete Dictionary of Scientific Biography has the definition of Diels, Otto Paul Hermann. Research related newspaper, magazine, and http://www.highbeam.com/doc/1G2-2830901168.html

9. Otto Diels Facts - Freebase.com Facts and figures about Otto Diels, taken from Freebase, the world's database. http://www.freebase.com/view/en/otto_diels

10. Diels, Otto Paul Hermann Summary | BookRags.com Diels, Otto Paul Hermann. Diels, Otto Paul Hermann summary with encyclopedia entries, research information, and more. http://www.bookrags.com/eb/diels-otto-paul-hermann-eb/

11. Otto Paul Hermann Diels Nobel Winners picture, Nobel Winners Bio Otto Paul Hermann Diels (18761954) German chemist. In 1950 he and his former assistant, Kurt Alder, were jointly awarded the http://www.nobel-winners.com/Chemistry/otto_paul_hermann_diels.html

Otto Paul Hermann Diels Otto Paul Hermann Diels German chemist. In 1950 he and his former assistant, Kurt Alder, were jointly awarded the Nobel Prize for Chemistry for their research into the synthesis of organic chemical compounds. In 1927 Diels dehydrogenated cholesterol to produce 'Diels hydrocarbon' (C18H16), an aromatic hydrocarbon closely related to the skeletal structure of all steroids, of which cholesterol is one. In 1935 he synthesized it. This work proved to be a turning point in the understanding of the chemistry of cholesterol and other steroids. Diels was born in Hamburg and studied at Berlin. He was director of the Chemical Institute at the Christian Albrecht University in Kiel 1916-48. Working with his assistant Alder, Diels developed the diene synthesis, which first achieved success in 1928, when they combined cyclopentadiene with maleic anhydride (cis-butenedioic anhydride) to form a complex derivative of phthalic anhydride. Generally, conjugated dienes (compounds with two double bonds separated by a single bond) react with dienophiles (compounds with one double bond activated by a neighbouring substituent such as a carbonyl or carboxyl group) to form a six-membered ring. Besides the DA reaction, Diels is also known for having discovered carbon suboxide (C3O2) and for his early research on the structure of cholesterol, especially for the use of selenium (rather than sulfur) for dehydrogenations, and for Diels' hydrocarbon (3'-methyl-1,2-cyclopentenophenanthrene) which he obtained from cholesterol by that technique.

12. Diels, Otto Paul Hermann Synonyms, Diels, Otto Paul Hermann Antonyms | Thesaurus No results found for diels, otto paul hermann Please try spelling the word differently, searching another resource, or typing a new word. Search another word or see diels http://thesaurus.com/browse/diels, otto paul hermann

13. 20th Century Diels, Otto Paul Hermann (18761954) Born Hamburg (Germany), 1876 Died Kiel (Germany), 1954 . Grignard, Fran ois Auguste Victor (1871-1935) Born Cherbourg (France), 1871 Died http://www.euchems.org/Distinguished/20thCentury/index.asp

Contact us Home 100 Distinguished 20th Century Home 20th Century Aston, Francis William (1877-1945) Born: Harborne (England), 1877 Died: Cambridge (England), 1945 Barton, Derek Harold Richard (1918-1998) Born: Gravesend (England), 1918 Died: College Station, Texas (US), 1998 Bosch, Carl (1874-1940) Born: Cöln (Germany), 1874 Died: Heidelberg (Germany), 1940 Brönsted, Johannes Nicolaus (1879-1947) Born: Varde, Jutland (Denmark), 22 February 1879 Died: Copenhagen (Denmark), 17 December 1947 Butenandt, Adolf Friedrich Johann (1903-1995) Born: Bremerhaven (Germany), 1903 Died: München (Germany), 1995 Curie, Marie (1867-1934) Born : Warsaw (Poland), 1867 Died : Haute Savoie (France), 1934 Debye, Peter Joseph Wilhelm (1884-1966) Born: Maastricht (The Netherlands), 1884 Died: Ithaca (USA), 1966 Diels, Otto Paul Hermann (1876-1954) Born: Hamburg (Germany), 1876 Died: Kiel (Germany), 1954 Grignard, François Auguste Victor (1871-1935) Born: Cherbourg (France), 1871 Died: Lyon Rhône (France), 1935 Haber, Fritz (1868-1934) Born: Breslau (Germany), 1868 Died: Basel (Switzerland), 1934 Hahn, Otto (1879-1968)

14. Diels, Otto Paul Hermann (1876-1954) German organic chemist who discovered carbon suboxide (C 3 O 2) in 1902 and who, with Kurt Alder, discovered the DielsAlder reaction (1928). http://www.daviddarling.info/encyclopedia/D/Diels.html

15. Nobel Prize In Chemistry Since 1901 Alder, Kurt; Diels, Otto Paul Hermann 1951 McMillan, Edwin Mattison; Seaborg, Glenn Theodore 1952 Martin, Archer John Porter; Synge, Richard Laurence Millington http://www.planet101.com/nobel_chemistry_hist.htm

Nobel Prize in Chemistry since 1901 Year Winners Hoff, Jacobus Henricus Van't Fischer, Hermann Emil Arrhenius, Svante August Ramsay, Sir William Baeyer, Johann Friedrich Wilhelm Von Moissan, Henri Buchner, Eduard Rutherford, Lord Ernest Ostwald, Wilhelm Wallach, Otto Curie, Marie Grignard, Victor; Sabatier, Paul Werner, Alfred Richards, Theodore William Willstatter, Richard Martin Haber, Fritz Nernst, Walther Hermann Soddy, Frederick Aston, Francis William Pregl, Fritz Zsigmondy, Richard Adolf Svedberg, The Wieland, Heinrich Otto Windaus, Adolf Otto Reinhold Euler-chelpin, Hans Karl August Von; Harden, Sir Arthur Fischer, Hans Bergius, Friedrich; Bosch, Carl Langmuir, Irving Urey, Harold Clayton Joliot, Frederic; Joliot-Curie, Irene Debye, Petrus Josephus Wilhelmus Haworth, Sir Walter Norman; Karrer, Paul Kuhn, Richard Butenandt, Adolf Friedrich Johann; Ruzicka, Leopold De Hevesy, George Hahn, Otto Virtanen, Artturi Ilmari Northrop, John Howard; Stanley, Wendell Meredith; Sumner, James Batcheller Robinson, Sir Robert Tiselius, Arne Wilhelm Kaurin Giauque, William Francis

16. Diels, Otto Paul Hermann Diels, Otto Paul Hermann (b. Jan. 23, 1876, Hamburgd. March 7, 1954, Kiel, W.Ger.), German organic chemist who with Kurt Alder was awarded the Nobel Prize for Chemistry in 1950 http://www.uv.es/EBRIT/micro/micro_169_90.html

Britannica CD Index Articles Dictionary Help Diels, Otto Paul Hermann (b . Jan. 23, 1876, Hamburgd. March 7, 1954, Kiel, W.Ger.), German organic chemist who with Kurt Alder was awarded the Nobel Prize for Chemistry in 1950 for their joint work in developing a method of preparing cyclic organic compounds. He studied chemistry at the University of Berlin under Emil Fischer and after various appointments was made professor of chemistry at the University of Kiel (1916). He became emeritus in 1945. In 1906 he discovered a highly reactive substance, carbon suboxide (malonic anhydride), and determined its properties and chemical composition. He also devised an easily controlled method of removing some of the hydrogen atoms from certain organic molecules by the use of metallic selenium. His most important work concerned the diene synthesis, in which organic compounds with two carbon-to-carbon double bonds were used to effect syntheses of many cyclic organic substances under conditions that threw light on the molecular structure of the products obtained. This method was developed (1928) in collaboration with Kurt Alder , his student, and is known as the Diels -Alder reaction. Their work proved especially important in the production of synthetic rubber and plastics.

17. Index Of Nobel Laureates In Chemistry Diels, Otto Paul Hermann 1950 Eigen, Manfred 1967 Ernst, Richard R. 1991 Ertl, Gerhard 2007 Eulerchelpin, Hans Karl August Simon Von 1929 Fenn, John B. http://almaz.com/nobel/chemistry/alpha.html

ALPHABETICAL LISTING OF NOBEL PRIZE LAUREATES IN CHEMISTRY Name Year Awarded Agre, Peter Alder, Kurt Altman, Sidney Anfinsen, Christian B. ... Medicine We always welcome your feedback and comments

18. AccessScience | Biography | Diels, Otto Paul Hermann About AccessScience. AccessScience is a subscriptionbased website that features continually updated scientific and http://www.accessscience.com/content.aspx?id=M0090278

19. Dielytra - Definition Of Dielytra By The Free Online Dictionary, Thesaurus And E Diels, Otto Diels, Otto Paul Hermann DielsAlder reaction Diels-Alder reaction Dielytra Diem Diem Diem, Ngo Dinh Diem, Ngo Dinh diemaker diembryony http://www.thefreedictionary.com/Dielytra

20. Otto Paul Hermann Diels Winner Of The 1950 Nobel Prize In Chemistry Diels, Otto Paul Hermann (18761954) (submitted by Davis) About Otto Paul Hermann Diels (submitted by Jackson) Otto Paul Hermann Diels Photo Portrait short info (submitted by Wanda) http://www.almaz.com/nobel/chemistry/1950a.html

O TTO P AUL H ERMANN D IELS 1950 Nobel Laureate in Chemistry for their discovery and development of the diene synthesis. Background Residence: Germany Affiliation: Kiel University Featured Internet Links Prize Co-recipient: Kurt Adler Search WWW Search The Nobel Prize Internet Archive Links added by Nobel Internet Archive visitors Biography of Otto Diels (submitted by Matt Otto Paul Hermann Diels – Biography (submitted by Chinnappan Baskar Catalytic Enantioselective Diels-Alder Reactions by E. J. Corey (submitted by Chinnappan Baskar The Diels-Alder Reaction in Total Synthesis by K. C. Nicolaou et al. (submitted by Chinnappan Baskar Some Info About Otto Paul Hermann Diels (submitted by Dan Thomas Diels, Otto Paul Hermann (1876-1954) (submitted by Davis) About Otto Paul Hermann Diels (submitted by Jackson) (submitted by Wanda) Otto Paul Hermann Diels-The Nobel Prize in Chemistry (submitted by Charly) Diels-Alder reaction (submitted by Wanda) Otto Paul Hermann Diels-Biography (submitted by Alex) Otto Paul Hermann Diels Biography from Encyclopedia Britannica (submitted by www.britannica.com) Otto Paul Hermann Diels - Biography (submitted by Lukas) OTTO PAUL HERMANN DIELS other (submitted by nobmer) Back to The Nobel Prize Internet Archive Literature Peace Chemistry ... Medicine We always welcome your feedback and comments

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