Roland Scholl

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Roland Heinrich Scholl.

Roland Heinrich Scholl (born September 30, 1865 in Zurich ; † August 22, 1945 in Eilenburg ) was a German chemist born in Zurich . His father Adolf Scholl-Wislicenus, born in Karlsruhe in 1836, later lived as a businessman in Zurich, where he died in 1910.

Life

After graduating from high school in Zurich, Scholl studied chemistry from 1883 at the University of Würzburg and at the Swiss Federal Polytechnic in Zurich. From 1887 to 1893 he was an assistant in Zurich and obtained his doctorate in 1890 at the University of Basel . In Zurich he taught as a private lecturer in 1893 and completed his habilitation in 1894 at the Zurich Polytechnic, where he then worked as a private lecturer.

At the commercial academy in Zurich, Scholl became a lecturer for commodity science in 1895 and was also a lecturer for chemistry at the veterinary school. In 1896 he accepted a call from the TH Karlsruhe as a full professor. In 1907 he became a full professor of chemistry at the University of Graz . In 1914 he was drafted into military service, from which he was released in 1916. From 1916 to 1934 he taught as a professor for organic chemistry and organic chemical technology at the TH Dresden . At that time he was also director of the organic-chemical laboratory at the university and from 1921 head of the chemical department. In 1920 he was accepted as a full member of the Saxon Academy of Sciences . In November 1933 he signed the professors' declaration of Adolf Hitler at German universities and colleges .

Act

Scholl was considered a thorough and critical person by his employees. At the beginning of his activity he investigated the structure of the pop acid and refuted the formulas presented by August Friedrich Kekulé von Stradonitz or other formulas. From 1903 onwards, Scholl was more active in the field of vat dyes , indanthrene and flavanthrene , among other things he clarified the constitution of the dyes. During the work on the flavanthrene synthesis, the pyranthrone , the first nitrogen - and sulfur - free vat dye, was produced .

In dealing with these condensed ring systems, Scholl proposed a nomenclature that allows these ring systems to be named in a simple manner. More than 100 publications mark his résumé.

literature

  • Alois Zinke, Otto Dischendorfer: Roland Scholl on his 60th birthday , Angewandte Chemie 38 ( 1925 ) 901–903.
  • Dorit Petschel : 175 years of TU Dresden. Volume 3: The professors of the TU Dresden 1828–2003. Edited on behalf of the Society of Friends and Supporters of the TU Dresden e. V. von Reiner Pommerin , Böhlau, Cologne a. a. 2003, ISBN 3-412-02503-8 , p. 858.

Web links

Individual evidence

  1. ^ Members of the SAW: Roland Scholl. Saxon Academy of Sciences, accessed November 30, 2016 .
  2. ^ R. Escales, A. Stettbacher: Initialexplosivstoffe , 1917.
  3. ↑ Roland Scholl: Pyranthron, a nitrogen-free methine analogue of flavanthrene, and dimethylpyranthrone . In: Reports of the German Chemical Society . tape 43 , no. 1 , January 1910, p. 346 , doi : 10.1002 / cber.19100430155 .
  4. ↑ A. Zinke, O. Dischendorfer: Roland Scholl . In: Zeitschrift für angewandte Chemie , Vol. 40 (1925), pp. 901-903.
personal data
SURNAME Scholl, Roland
ALTERNATIVE NAMES Scholl, Roland Heinrich (full name)
BRIEF DESCRIPTION Swiss chemist and natural scientist
DATE OF BIRTH September 30, 1865
PLACE OF BIRTH Zurich
DATE OF DEATH August 22, 1945
Place of death Eilenburg