Fritz Ullmann

Fritz Ullmann (born July 2 1875 in Fürth; died 1939) was a German Chemist. Ullmann taught technical chemistry during 1905-1913 and 1922-1925 at the Technischen Hochschule Berlin now Technische Universität Berlin, first as part of the ordinary teaching staff, later on as a Professor. In 1900 he introduced dimethyl sulfate as an alkylating agent. Between 1914 and 1922 he published the first edition of the "Enzyklopädie der Technischen Chemie" in 12 volumes (ISBN 3-527-20142-4) in English the Ullmann's Encyclopedia of Industrial Chemistry, a publication that exists to this day. He was married to Irma Goldberg who was his assistant from 1905 to 1910 at his laboratory.

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They named after themselves the following reactions: the Ullmann reaction, the Ullmann condensation, the Graebe-Ullmann synthesis, the Goldberg reaction and the illustrious Jourdan-Ullmann-Goldberg synthesis