Karrer , Paul
(1889–1971) Swiss chemist
Karrer, the son of a Moscow dentist, was educated at the University of Zurich where he obtained his PhD. After working in Frankfurt he returned to the University of Zurich in 1918, where he served as professor of chemistry until his retirement in 1959.
He began his research career working on the chemistry of plant pigments. Although Karrer tackled a wide variety of such pigments his most significant result was his determination, by 1930, of the structure of carotene, the yellow pigment found in such vegetables as carrots. By 1931 he had also worked out the structure of vitamin A and synthesized it. The similarity between the two molecules did not escape Karrer's attention and it was later shown that vitamin A is derived from the breakdown of carotene in the liver. Karrer went on to synthesize vitamin B2(riboflavin) in 1935 and vitamin E (tocopherol) in 1938.
In 1937 Karrer was awarded, along with Norman Haworth, the Nobel Prize for chemistry for his work on the “constitution of carotenoids, flavins, and vitamins A and B.” Karrer was the author of a respected textbook, Lehrbuch der organischen Chemie (1927; Textbook of Organic Chemistry).

Scientists. . 2011.

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  • Karrer, Paul — ▪ Swiss chemist born April 21, 1889, Moscow, Russia died June 18, 1971, Zürich, Switz.       Swiss chemist who investigated the constitution of carotenoids (carotenoid), flavins, and vitamins A and B2, for which he shared the 1937 Nobel Prize for …   Universalium

  • Karrer,Paul — Kar·rer (kärʹər), Paul. 1889 1971. Russian born Swiss chemist. He shared a 1937 Nobel Prize for his research on carotenoids and flavins. * * * …   Universalium

  • Karrer, Paul — ► (1889 1971) Químico suizo. Fue premio Nobel de Química en 1937, junto con W. Norman Haworth, por el reconocimiento al conjunto de sus investigaciones …   Enciclopedia Universal

  • Karrer — Paul …   Scientists

  • Karrer — Karrer, Paul …   Enciclopedia Universal

  • Paul Karrer — Paul Karrer, 1937 Paul Karrer (* 21. April 1889 in Moskau; † 18. Juni 1971 in Zürich) war ein Schweizer Chemiker sowie Nobelpreisträger für Chemie. Inhaltsverzeichnis 1 …   Deutsch Wikipedia

  • Paul Karrer — (21 avril 1889 à Moscou 18 juin 1971 à Zurich, Suisse) est un chimiste organique suisse, principalement connu pour son travail sur les vitamines. Il est lauréat de la moitié du prix Nobel de chimie de 1937 …   Wikipédia en Français

  • Paul Karrer — Saltar a navegación, búsqueda Paul Karrer (n. Moscú, 21 de abril de 1889 † Zúrich, 18 de junio de 1971) fue un químico y profesor universitario suizo galardonado con el Premio Nobel de Química del año 1937. Biografía Karrer nació en Moscú, hijo… …   Wikipedia Español

  • Paul Karrer — (n. Moscú, 21 de abril de 1889 † Zürich, 18 de junio de 1971). Químico suizo. Karrer nació en Moscú, hijo de los ciudadanos suizos Paul Karrer y Julie Lerch y en 1892 la familia volvió a Suiza, donde se educó en Wildegg y Lenzburg, Aarau. Estudió …   Enciclopedia Universal

  • Paul Crutzen — Paul Josef Crutzen Paul Josef Crutzen (né le 3 décembre 1933 à Amsterdam), est un chimiste et météorologue néerlandais. Il fut directeur à l institut Max Planck de chimie à Mayence de 1980 à 2000. Il obtint le prix Nobel de chimie en 1995. Paul… …   Wikipédia en Français

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