Hans Plieninger

Hans Plieninger (born January 17, 1914 in Zurich , † December 23, 1984 in London ) was a German chemist.

Plieninger grew up in Freiburg im Breisgau and, after graduating from high school at Schloss Salem, studied chemistry at the University of Frankfurt am Main and the TH Munich with a diploma in 1938 and a doctorate in 1941 (on the constitution of bilirubin and tripyrrene ) with Hans Fischer . He did military service from 1935 to 1937, 1939/40 and 1945 and was a research assistant at the Technical University of Munich during World War II (where Hans Fischer temporarily succeeded in making him indispensable in 1940 and 1945) and from 1942 to 1944 at IG Farben Ludwigshafen at Walter Reppe . From 1946 to 1953 he was at Knoll AG in Ludwigshafen, where he dealt with the synthesis of amino acids . In 1953 he completed his habilitation based on his published work at the TH Darmstadt , was from 1953 assistant and from 1958 diet lecturer at the Ruprecht-Karls-Universität Heidelberg , where he became an adjunct professor in 1960, an associate professor in 1964 and a full professor in 1967. He was twice managing director of the chemical institute. In 1979 he retired.

He dealt with organic synthesis, especially with natural products.

In 1956 he published the dienol-benzene rearrangement with Rolf Müller . In 1962 he introduced high pressure processes into preparative organic synthesis.

He was married to Karl Freudenberg's daughter Herta . He also edited new editions of Freudenberg's textbook on organic chemistry.

He and his wife were involved in environmental protection and peace policy. In 1982 he sent all 519 members of the Bundestag at his own expense (around 10,000 DM at the time) the book against nuclear armament by Jonathan Schell Das Schicksal der Erde . He had a farm in Tuscany where he ran organic farming.

Web links

• biography at kipnis

Individual evidence

1. ↑ The tripyrrenes were a subject of Fischer's research. See: Hans Fischer; Herbert Reinecke: About Tripyrrene , in: Hoppe-Seyler's Zeitschrift für Physiologische Chemie, Volume 259, 1939, pp. 83 ff.
2. ↑ In Heidelberg he was unable to do his habilitation for formal reasons, since Karl Freudenberg, his father-in-law, was the institute director there.