Fritzsche, Carl Julius

Carl Julius Fritzsche (1808-1871) deserves credit for pioneering work on donor-acceptor complexes. During his thirty five year tenure at the Academy in Petersburg (1834-1869), he carried out detailed investigations of the components of coal tar. In the course of these experiments, as early as 1857, he observed and characterized 1 1 molecular complexes of picric add with benzene, naphthalene, and anthracene [70,71]. Remarkably, Fritzsche already understood these aromatics as a series of homologs ... 

Laurent and Erdmann oxidized isatin, from which they obtained anthranilic acid (4). Carl Julius Fritzsche (also known as Iulii Federovich Fritsshe) in 1840 subjected anthranilic acid to alkaline distillation and obtained a powerful base, devoid of oxygen , that he called Anilin, from anil, the Portuguese word for indigo, which in turn had been derived from Arabic and Sanskrit. In 1842, the Russian chemist Nikolai N. Zinin reduced, with hydrogen sulfide, Nitrobenzid (nitrobenzene) to what was called Benzid (also Benzidam,... 

Carl Julius Fritzsche (Neustadt, nr. Stolpen, Saxony, 29 October 1808-Dresden, 20 June 1871), originally a pharmacist, then Dr. Phil. Berlin (1833) and assistant to Mitscherlich, became manager of Struve s mineral-water works in St. Petersburg, and member of the Academy of Sciences there (1838 adjunct, 1844 associate, 1852 full academician). He investigated pollen, purpuric acid, potassium bromate, crystalline ammonium sulphides, osmiridium, and vanadium compounds. He discovered compounds of hydrocarbons and picric acid, and grey tin. ... 

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