21. Diels, Otto Paul Hermann Diels, Otto Paul Hermann (18761954) 20th Century. Born Hamburg (Germany), 1876 Died Kiel (Germany), 1954 . Under the guidance of Emil Fischer, Diels became professor in Berlin in http://www.euchems.org/Distinguished/20thCentury/dielsotto.asp

Contact us Home 100 Distinguished 20th Century Diels, Otto Paul Hermann Diels, Otto Paul Hermann (1876-1954) 20th Century Born: Hamburg (Germany), 1876 Died: Kiel (Germany), 1954 Under the guidance of Emil Fischer, Diels became professor in Berlin in 1906, in 1916 he moved to Kiel. In 1906 he synthesised C3O2. In the course of the investigation of cholesterol he found the dehydrogenation with Selenium. In 1928 together with Kurt Alder he developed a method of preparing cyclic organic compounds (Diels-Alder reaction) and the pair were jointly awarded the 1950 Nobel Prize for chemistry. Related Links The Nobel Prize in Chemistry 1950 "for their discovery and development of the diene synthesis" External links will open in a new browser window Main Links About EuCheMS EuCheMS News Governance and Structure EuCheMS Chemistry Congresses ... EuCheMS Networking Scheme © EuCheMS 2010

22. Full Text Translator, Language Translation | Free Translations From Dictionary.c Free full text language translations at Translate.Reference.com. Free online translator and multilingual dictionary for over 50 foreign languages. http://translate.reference.com/?query=diels, otto paul hermann

23. The Nobel Prize In Chemistry 1950 Nobelprize.org, The Official Web Site of the Nobel Prize http://nobelprize.org/nobel_prizes/chemistry/laureates/1950/

Home FAQ Press Contact Us ... Nobel Prize in Chemistry The Nobel Prize in Chemistry 1950 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 Otto Paul Hermann Diels Kurt Alder The Nobel Prize in Chemistry 1950 was awarded jointly to Otto Paul Hermann Diels and Kurt Alder "for their discovery and development of the diene synthesis" TO CITE THIS PAGE: MLA style: "The Nobel Prize in Chemistry 1950". Nobelprize.org. 1 Nov 2010 http://nobelprize.org/nobel_prizes/chemistry/laureates/1950/ About Nobelprize.org Technical Support Home FAQ ... Contact Us

24. Otto Paul Hermann Diels (German Chemist) -- Britannica Online Encyclopedia Otto Paul Hermann Diels (German chemist), Jan. 23, 1876Hamburg, Ger. March 7, 1954Kiel, W.Ger.German organic chemist who with Kurt Alder was awarded the Nobel Prize for Chemistry http://www.britannica.com/EBchecked/topic/162657/Otto-Paul-Hermann-Diels

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25. Diels, Otto Diels, Otto Paul Hermann (18761954) German chemist. In 1950 he and his former assistant, Kurt Alder http://www.cartage.org.lb/en/themes/Biographies/MainBiographies/D/Diels/1.html

Diels, Otto Paul Hermann 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.

26. Diels, Otto Paul Hermann (Ger. Chem.) Diels, Otto Paul Hermann (Ger. chem.) collaboration with Alder http://www.uv.es/EBRIT/index/index_di_els_0.html

Britannica CD Index Articles Dictionary Help Diels, Otto Paul Hermann (Ger. chem.) collaboration with Alder

27. Diels - Definition Of Diels At YourDictionary.com Diels, Otto (Paul Hermann) 18761954; Ger. organic chemist German chemist. He shared a 1950 Nobel Prize for discoveries http://www.yourdictionary.com/diels

28. Chemists-D Daniell, John Frederic Davy, Humphry Deisenhofer, Johann Dewar, James D sormes, Charles Bernard Diels, Otto Paul Hermann http://www.cartage.org.lb/en/themes/Biographies/Categories/Scientists/Chemists/i

Daniell, John Frederic Davy, Humphry Deisenhofer, Johann Dewar, James Daniell, John Frederic Davy, Humphry Deisenhofer, Johann Dewar, James ... Dulong, Pierre

29. Schlagwort „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 http://www.sammlungen.hu-berlin.de/schlagworte/9372/

Hermann von Helmholtz-Zentrum für Kulturtechnik Katalog der wissenschaftlichen Sammlungen der Humboldt-Universität zu Berlin (Pilotprojekt) Wissenschaftliche Sammlungen Thesaurus Thesaurus Person ... Diels, Otto Paul Hermann Verknüpfte Sammlungsobjekte: Über das Schlagwort „Diels, Otto Paul Hermann“ sind 2 Sammlungsobjekte verknüpft. Beispiele: Foto, Porträt, Otto Paul Hermann Diels Am häufigsten verwendete Schlagwörter: Gelehrtenporträt (8 mal) Porträt (4 mal) ... (2 mal) 1. Diels-Alder-Reaktion (Deutsch) Fotografie (2 mal) Fotopapier (2 mal) ... (2 mal) Navigation Sammlungsobjekte Thesaurus Sammlungen Erweiterte Suche ... Objekte des Monats Schnellsuche Die hier präsentierten Sammlungsobjekte bilden nicht den Gesamtbestand im Besitz der Humboldt-Universität zu Berlin ab. Bisher ist nur ein Teil des Bestandes durch das Helmholtz-Zentrum für Kulturtechnik erfasst und digitalisiert worden. Auch sind möglicherweise bestimmte Sammlungsobjekte aus daten- oder jugendschutzrechtlichen Gründen ausgeblendet. Für den Zugang zum Gesamtbestand der Datenbank wenden Sie sich bitte an die im Impressum angegebenen Adressen.

30. Diels - Definition And Meaning From Wordnik Diels Diels, Otto Paul Hermann 18761954. German chemist. He shared a 1950 Nobel Prize for discoveries concerning the structure of organic matter. http://www.wordnik.com/words/Diels

Sign up! Sign in Zeitgeist Word of the day ... Random word Username Password ( Forgot? or Using Facebook Connect logs you in to Wordnik whenever you are logged in to Facebook. Not a member yet? Sign up for an account Diels Add to favorites Add to a list Link to this word [x] ... Tweet Definitions Thesaurus Examples Pronunciations Comments Diels in [x] American Heritage Dictionary (1 definition) Diels Otto Paul Hermann 1876-1954. German chemist. He shared a 1950 Nobel Prize for discoveries concerning the structure of organic matter. Century Dictionary Wiktionary GNU Webster's 1913 WordNet Elsewhere on the web Diels elsewhere on the web: Ninjawords Online Etymology Dictionary OneLook Bartleby All Books ... Examples This report, which Diels and Kranz took to preserve a genuine fragment of Zeno's book, appears to suggest how the argument that the moving arrow is at rest may have figured as part of a broader argument against motion. Zeno of Elea The Diels -Alder reaction, an organic-chemistry classic, helps explain the impetus for change. The Wall Street Journal Archytas, son of Hestiaeus (see Aristoxenus in

31. Otto Paul Hermann Diels Biography Otto Paul Hermann Diels biography. Who is Otto Paul Hermann Diels? Otto Paul Hermann Diels bio. http://biography.yourdictionary.com/otto-paul-hermann-diels

32. AccessScience | Diels-Alder Reaction The 1,4addition of an alkene (the dienophile) to a conjugated diene. The Diels, Otto Paul Hermann (1876–1954) http://www.accessscience.com/search.aspx?rootID=792138

33. Foto, Porträt, Otto Paul Hermann Diels The prize was awarded jointly to DIELS, OTTO, PAUL HERMANN, Germany, Kiel University, b. 1876, d. 1954; and ALDER, KURT, Germany, Cologne University, b. 1902, d. 1958 for their http://www.sammlungen.hu-berlin.de/dokumente/11734/

Hermann von Helmholtz-Zentrum für Kulturtechnik Katalog der wissenschaftlichen Sammlungen der Humboldt-Universität zu Berlin (Pilotprojekt) Wissenschaftliche Sammlungen Sammlungsobjekte Foto, Porträt, Otto Paul Hermann Diels Bilddokument Porträtsammlung Berliner Hochschullehrer Kniestück nach halblinks, Kopf nach vorn; Diels in einem Sessel sitzend, die Hände vor dem Körper, die Beine übereinander geschlagen, Foto im Passepartout O. Diels [Autograf, hss., Rahmen u.M.] Rahmen 20,8x14,8 cm; Bild 14,7x 10,5 cm Verschlagwortung Allgemein Sammlungsobjekt Allgemein Körperschaft Humboldt-Universität zu Berlin Universitätsbibliothek Verwaltung Körperschaft Humboldt-Universität zu Berlin Universitätsbibliothek Allgemein Material Fotopapier Material Material Fotopapier Allgemein Person Namen A-Z Diels, Otto Paul Hermann Darstellungsinhalt Person Namen A-Z Diels, Otto Paul Hermann Form Repro/ Medium 2D-Scan Allgemein Sammlung Porträtsammlung Berliner Hochschullehrer Allgemein Sammlungsobjekt Zweidimensionales Objekt Bilddokument Fotografie Dokument-Typ Sammlungsobjekt Zweidimensionales Objekt Bilddokument Fotografie Allgemein Technik Fototechnik Schwarzweiß-Fotografie Technik Technik Fototechnik Schwarzweiß-Fotografie Gattung Thema/ Forschung Bildgattung Porträt Allgemein Thema/ Forschung Bildgattung Porträt Gelehrtenporträt Verknüpfte Dokumente Biografie, Otto Paul Hermann Diels (Person)

34. Diels, Otto Paul Hermann (1876-1954), Chimiste Allemand Diels, Otto Paul Hermann Dien Bien Phu Di em (dm, dy m) KEY , Ngo Dinh 1901-1963. Vietnamese political leader http://isimabomba.free.fr/biographies/chimistes/diels.htm

Otto Paul Hermann Diels (1876-1954) C himiste allemand. N LISTE HOME

35. OTTO PAUL HERMANN DIELS - Encyclopédie Universalis Otto Diels (Otto Paul Hermann Diels) was born on Sunday, January 23, 1876 in Hamburg and he was a famous chemist from Germany http://www.universalis.fr/encyclopedie/otto-paul-hermann-diels/

Encyclopædia Universalis, le portail de la connaissance Accueil Boutique Contact Assistance J'ai oublié mon mot de passe Zone de recherche Saisir un mot clef DIELS OTTO PAUL HERMANN Chimiste allemand né à Hambourg, décédé à Kiel. Diels soutient en 1899 sa thèse de doctorat préparée à l'université de Berlin où il reste en poste jusqu'en 1916 : assistant dès 1899, il y est maître de conférences en 1904, directeur du département de chimie en 1913 et professeur associé en 1914. En 1916, il est nommé professeur et directeur de l'Institut de chimie à Kiel, postes qu'il va occuper jusqu'à son départ en retraite en 1948. En 1906, Diels obtient le suboxyde de carbone (C O ), dont il étudie les propriétés. Il s'intéresse ensuite à la détermination de la structure du cholestérol dont il obtient par déshydrogénation, à l'aide du sélénium, un hydrocarbure auquel on donnera le nom de « hydrocarbure de Diels » ; ce travail sera important pour la détermination finale de la structure du cholestérol effectuée en 1932 par d'autres équipes. C'est en 1925 que Diels publie les premiers travau […] … pour nos abonnés, l'article se prolonge sur 1 page…

36. Alder Tree - Hutchinson Encyclopedia Article About Alder Tree alder fly Alder, Kurt aquatic aquatic insect charcoal cone coppicing Diels, Otto Paul Hermann ErlKing Maine Neuroptera nitrogen cycle varve analysis http://encyclopedia.farlex.com/alder tree

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