Diels Große Englische Renette
Diels is the last name of several people: * Rudolf Diels (1900–1957), German politician * Otto Diels (1876–1954), German scientist noted for his work on the Diels–Alder reaction * Ludwig Diels (1874–1945), German botanist whose standard author abbreviation is Diels * Hermann Diels Hermann Alexander Diels (; 18 May 1848 – 4 June 1922) was a German Classics, classical scholar, who was influential in the area of early Greek philosophy and is known for his standard work ''Die Fragmente der Vorsokratiker''. Diels helped to im ...

Rudolf Diels
Rudolf Diels (16 December 1900 – 18 November 1957) was a German civil servant and first head of the Gestapo from 1933–34. He obtained the rank of SS-''Oberführer'' and was a protégé of Hermann Göring. Diels was forced from the Gestapo by Heinrich Himmler. Aided by Göring, he later held several government posts; serving as assistant police commissioner of Berlin, and the administrative president of Cologne. In the 1940s, Diels refused to participate in anti-Jewish initiatives. Diels was imprisoned in 1944 after the July bomb plot to kill Adolf Hitler. He survived the war, and worked in the post-war government of Lower Saxony. Early life Diels was born in Berghausen in the Taunus, the son of a farmer. He went to school in Wiesbaden. He served in the army towards the end of World War I and was posted in Haguenau, Alsace in an intelligence role. After the war, he studied law at the University of Marburg from 1919. At university he had a reputation as a drinker and phil ...
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Otto Diels
Otto Paul Hermann Diels (; 23 January 1876 – 7 March 1954) was a German chemist. His most notable work was done with Kurt Alder on the Diels–Alder reaction, a method for cyclohexene synthesis. The pair was awarded the Nobel Prize in Chemistry in 1950 for their work. Their method of synthesizing cyclic organic compounds proved valuable for the manufacture of synthetic rubber and plastic. He completed his education at the University of Berlin, where he later worked. Diels was employed at the University of Kiel when he completed his Nobel Prize-winning work, and remained there until he retired in 1945. Diels was married, with five children. He died in 1954. Early life Diels was born on 23 January 1876 in Hamburg, Germany, and moved with his family to Berlin when he was two years old. He studied in Berlin at Joachimsthalsches Gymnasium before attending the University of Berlin starting in 1895. While at university, Diels studied chemistry under Emil Fischer, eventu ...
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Diels–Alder Reaction
In organic chemistry, the Diels–Alder reaction is a chemical reaction between a Conjugated system, conjugated diene and a substituted alkene, commonly termed the Diels–Alder reaction#The dienophile, dienophile, to form a substituted cyclohexene derivative. It is the prototypical example of a pericyclic reaction with a concerted reaction, concerted mechanism. More specifically, it is classified as a thermally allowed [4+2] cycloaddition with Woodward–Hoffmann rules, Woodward–Hoffmann symbol [π4s + π2s]. It was first described by Otto Diels and Kurt Alder in 1928. For the discovery of this reaction, they were awarded the Nobel Prize in Chemistry in 1950. Through the simultaneous construction of two new carbon–carbon bonds, the Diels–Alder reaction provides a reliable way to form six-membered rings with good control over the regio- and stereochemical outcomes. Consequently, it has served as a powerful and widely applied tool for the introduction of chemical complexity in ...
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Ludwig Diels
Friedrich Ludwig Emil Diels (24 September 1874 – 30 November 1945) was a German botanist. Diels was born in Hamburg, the son of the classical scholar Hermann Alexander Diels. From 1900 to 1902 he traveled together with Ernst Georg Pritzel through South Africa, Java, Australia and New Zealand. __TOC__ History Shortly before the First World War he travelled New Guinea and in the 1930s in Ecuador. Especially his collections of plants from Australia and Ecuador, which contained numerous holotypes, enriched the knowledge of the concerning floras. His monography on the Droseraceae from 1906 is still a standard. The majority of his collections were stored at the Botanical Garden in Berlin, botanical garden in Berlin-Dahlem, whose vicedirector he had been since 1913, becoming its director in 1921 until 1945. His collections were destroyed there during an air raid in 1943. He died in Berlin on 30 November 1945. Honours Several genus of plants have been named after him including; ''Die ...
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