Abstract
BY the death, on September 4, of Prof. Dr. Paul Friedlander another favourite and successful pupil of Adolf von Baeyer has passed away. He had many friends and was highly esteemed by his colleagues beyond the boundaries of his native country. Paul Friedlander was born in 1857 at Konigsberg, Prussia, where, having finished his school education, he began his academic studies under Graebe, and continued them in Strasbourg and Munich under A. v. Baeyer in 1878, whose private assistant he was at the time. From 1884 to 1887 Friedlander was chief chemist of the scientific laboratory of the Oehler Works at Offenbach a.M. Afterwards he entered upon his academic career in 1888 at Karlsruhe, where he was made professor-extraordinaryin 1889; from 1895 to 1911 he was professor at the Museum of Industrial Technology in Vienna, whence he passed to Darmstadt as professor of chemistry of dyestuffs. Friedlander's most important work was connected with the group of indigo dyes; he found that the ancient Tyrian purple, the dyestuff of the shellfishes, contains highly bromin-ated indigo derivatives; his discovery of thio-indigo red, a sulphur derivative of indigo, was most important in the development of vat dye manufacture, and enabled Friedlander to find a number of new compounds. His main literary work is well known and in daily use by colour and dyestuff chemists, though, so far as we know, published in German only.
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[Obituaries]. Nature 112, 698 (1923). https://doi.org/10.1038/112698b0
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DOI: https://doi.org/10.1038/112698b0