Otto Fischer (chemist)

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Otto Fischer for his habilitation in Munich
Otto Fischer in Munich (1877)

Otto Philipp Fischer (born November 28, 1852 in Euskirchen , † April 4, 1932 in Erlangen ) was a German chemist . Otto Fischer is a cousin of the same old Nobel Prize winner Emil Fischer .

He studied chemistry in Berlin, Bonn (in August from Kekule ) and Strasbourg and was 1874-75 at the University of Strasbourg in Adolf von Baeyer with a thesis About connections from chloral and aldehyde with toluene with elimination of water doctorate . For a semester he then went to research on methylanthracene as a private assistant to Carl Liebermann at the industrial academy in Berlin. For his habilitation in 1878 he followed Baeyer to the University of Munich , where he then received a private lecturer position. Otto Fischer always sought to be close to his cousin Emil, who was also a student of Baeyer.

After the death of Eugen von Gorup-Besánez (1879), the chair of organic chemistry at the emerging University of Erlangen was only briefly occupied by Jacob Volhard (1880–1882) and Emil Fischer (1882–1885). Since Fischer could not guarantee the research operation due to long stays at the spa, he asked the Ministry of Education to appoint his cousin Otto from Munich to Erlangen as a substitute. He used his authorized absence to establish intensive contacts with fellow students in Würzburg (e.g. Wislicenus and Tafel ), from where he was then appointed to the chair of chemistry at Julius Maximilians University in 1885 . The substitute professorship in Erlangen remained permanently occupied by Otto Fischer from 1885. Otto Fischer did not retire until 1925 in Erlangen.

From 1885 Otto Fischer was a corresponding member of the Bavarian Academy of Sciences . From 1893 he was a member of the Academic Pharmacist , later the Corps Guestphalia Erlangen.

Fischer worked on the structure of dyes, specifically triphenylmethane dyes.

Anton Vilsmeier and Eduard Hepp , after whom the Fischer-Hepp rearrangement (1886) was named, were among his students . Under the influence of an acid, a nitroso group is rearranged from the nitrogen of the amino group in the aniline to a para position in the phenyl group .

Fischer-Hepp rearrangement

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literature

Individual evidence

  1. ^ Carsten Reinhardt: Research in the chemical industry: the development of synthetic dyes at BASF and Hoechst, 1863 to 1914, Volume 202 of Freiburg research books , p. 258, Technical University, 1997.
  2. Life data, publications and academic family tree of Otto Philipp Fischer at academictree.org, accessed on February 6, 2018.
  3. ^ See Daniel Vorländer: Jacob Volhard , Reports of the Reports of the German Chemical Society 45 , 1884-1887 (1912).
  4. ^ Emil Fischer - From my life, Springer, Berlin 1922, Archives | Pp. 90-120 .
  5. Erwin Willmann (Ed.): Directory of the old Rudolstädter Corps students. (AH. List of the RSC.) , 1928 edition, No. 1130a.