Английская Википедия:Hans von Pechmann
Шаблон:Short description Шаблон:Infobox scientistHans FreiherrШаблон:Efn von Pechmann (1 April 1850 – 19 April 1902) was a German chemist, renowned for his discovery of diazomethane in 1894.[1][2] Pechmann condensation[3][4] and Pechmann pyrazole synthesis.[5] He also first prepared 1,2-diketones (e.g., diacetyl), acetonedicarboxylic acid, methylglyoxal and diphenyltriketone; established the symmetrical structure of anthraquinone.
Von Pechmann also produced the first example of solid polyethylene serendipitously in 1898, via the decomposition of diazomethane.
Life
Von Pechmann was born in Nürnberg, the only son of a doctor, who was also named Hans. The von Pechmanns had distinguished themselves as soldiers; in 1702, von Pechmann's ancestor Martin Günther von Pechmann, a general of artillery in the Bavarian army, had been raised to the rank of a baron of the Holy Roman Empire by Leopold I.[6] After studying with Heinrich Limpricht at the University of Greifswald he became professor at the University of Munich till 1895. He was professor at the University of Tübingen from 1895 until his death. He killed himself by taking cyanide, aged 52.[6]
Works
- Volhard's Anleitung zur Qualitativen chemischen Analyse . Chemisches Labolatorium des Staates, München 9th & 10th ed. 1901 Digital edition by the University and State Library Düsseldorf
- Anleitung zur quantitativen Analyse nach Cl. Zimmermann : zum Gebrauche im chemischen Laboratorium des Staates zu München . Chemisches Laboratorium des Staates, München 10th ed. 1901 Digital edition by the University and State Library Düsseldorf
See also
Notes
References
- Partington, J. R. A History of Chemistry. Macmillan: 1964; vol. 4, p. 838-839.
Шаблон:Authority control Шаблон:Germany-chemist-stub
- Английская Википедия
- 1850 births
- 19th-century German chemists
- University of Greifswald alumni
- German chemists
- Suicides by poison
- Suicides in Germany
- 1902 suicides
- 1902 deaths
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