Hans von Pechmann (1850 - 1902) was a German chemist, renowned for his discovery of diazomethane, Pechmann condensation and Pechmann pyrazole synthesis. He also first prepared 1,2-diketones, acetonedicarboxylic acid, methylglyoxal and diphenyltriketone; established the symmetrical structure of anthraquinone. Von Pechmann also discovered polyethylene plastics serendipitously, when accidentally heating diazomethane.

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  • Hans von Pechmann (1850 - 1902) was a German chemist, renowned for his discovery of diazomethane, Pechmann condensation and Pechmann pyrazole synthesis. He also first prepared 1,2-diketones, acetonedicarboxylic acid, methylglyoxal and diphenyltriketone; established the symmetrical structure of anthraquinone. Von Pechmann also discovered polyethylene plastics serendipitously, when accidentally heating diazomethane. 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 till his death in 1902.
  • Hans Freiherr von Pechmann war ein deutscher Chemiker. Pechmann studierte in München und war von 1895 bis 1902 Professor an der Universität Tübingen. 1894 entdeckte er das Diazomethan und 1898 das Polyethylen. Siehe auch: Pechmann-Reaktion
  • Hans von Pechman - niemiecki chemik, który w 1898 roku wytworzył polietylen podczas ogrzewania diazometanu.
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  • Hans von Pechmann (1850 - 1902) was a German chemist, renowned for his discovery of diazomethane, Pechmann condensation and Pechmann pyrazole synthesis. He also first prepared 1,2-diketones, acetonedicarboxylic acid, methylglyoxal and diphenyltriketone; established the symmetrical structure of anthraquinone. Von Pechmann also discovered polyethylene plastics serendipitously, when accidentally heating diazomethane.
  • Hans Freiherr von Pechmann war ein deutscher Chemiker. Pechmann studierte in München und war von 1895 bis 1902 Professor an der Universität Tübingen. 1894 entdeckte er das Diazomethan und 1898 das Polyethylen. Siehe auch: Pechmann-Reaktion
  • Hans von Pechman - niemiecki chemik, który w 1898 roku wytworzył polietylen podczas ogrzewania diazometanu.
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  • Hans von Pechmann
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  • Hans von Pechmann
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