Conrad Weygand

Oskar Emil Conrad Weygand ( born November 8, 1890 in Leipzig, † April 18, 1945 ) was a German chemist and university teacher.

Life

The son of Leipzig merchant Theodor Weygand visited from Easter 1901 to Easter 1910, the King Albert Grammar School of his native city, and studied from 1910 to 1914 chemistry at the University of Leipzig. He then took part in the First World War and came in September 1918 in French captivity. After his release in February 1920, he returned to the University of Leipzig. In 1921 he received a doctorate in phil. in chemistry. Then Weygand was until 1930 an assistant to Arthur Hantzsch. His habilitation and appointment as Assistant Professor of Chemistry at the Faculty of Mathematics and Natural Sciences Department of Philosophy Faculty of the University of Leipzig took place 1925. 1930 he was appointed non-scheduled and scheduled from 1935 to Associate Professor of Chemistry.

In 1938, he developed a method for the classification of chemical reactions. His book Organic Chemical Experiment art is considered a standard work, which underwent several editions and revisions. It was after 1945, also translated into English and Russian. Weygand was a member of the Nazi Party and the German Chemical Society. In his book German chemistry as the science of substance he represented similar thoughts as Philipp Lenard, the leading representative of German physics, but was not classified as an activist, but followers of National Socialism after 1945.

As commander of the Volkssturm unit Conrad Weygand fell in the last battle for Leipzig. He was buried in the South Cemetery in Leipzig.

Works (selection)

Theses

  • About isomeric salts from acetessigesterähnlichen compounds (Part I); About the reaction of propiophenone with aromatic amines (Part II), Phil thesis, in: Yearbook of the Faculty of Arts Leipzig (excerpts ), Leipzig 1921 2 p 216-218, . Part II, in: Journal of the American Chemical Society, Vol 47, 1943
  • Contributions to the problem of the constitution keto- enols of 1,3- diketones (Part I); About the reaction of hydroxylamine with enol ethers and Acetylenketonen and a new constitutive unique Isoxazolsynthese (Part II), Habilitation Thesis, Berlin 1927

Monographs

  • Quantitative analytical micro methods of organic chemistry in a comparative representation, Akademische Verlagsgesellschaft, Leipzig 1931
  • Organic chemical art of experimentation, Johann Ambrosius Barth, Leipzig 1938
  • Chemical morphology of liquids and crystals, Akademische Verlagsgesellschaft, Leipzig 1941
  • German chemistry as the science of matter, Max Niemeyer, Halle / Saale in 1942

Translations

  • Organic Preparations, Interscience Publishers, New York 1946 [ English Translation of the second part of the organic- chemical experimentation Art ]
  • Metody ėksperimenta v organičeskoj chimii, 3 vols, Izd. inostrannoj literatury, Moscow 1951-52 [ Russian translation Organic Chemical Experimental Art ]

Papers

  • About dimensionally stable, isolated, liquid - crystalline formations. 4 contribution to the chemical morphology of the fluids, in: Journal of Physical Chemistry, Chemistry of the elementary processes, structure of matter, Vol 53, Akademische Verlagsgesellschaft, Leipzig 1942
  • About the legality in homologous series and their practical significance, in: Nova Acta Leopoldina, Vol 13, Issue 91-98, Johann Ambrosius Barth, Leipzig 1944

Cooperation

  • Encyclopedia of Plant Analysis, 4 vols, ed. by Gustav Klein, Vol 1: General methods of plant analysis, Springer, Vienna 1931
France Arthur Rudolf Hantzsch
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