Fritz Ullmann

Fritz Ullmann ( born July 2, 1875 in Fuerth, † March 17, 1939 in Geneva ) was a German chemist. According to him, the Ullmann coupling is named. In addition, according to Carl Graebe and it is the Graebe - Ullmann synthesis named.

Ullmann studied from 1893 Chemistry at the University of Geneva and received his doctorate there in 1895. After that, he was an assistant for organic chemistry and lecturer from 1898 in Geneva. He taught from 1905 to 1913 and from 1922 to 1925 Technical Chemistry at the Technical University Berlin, first as a lecturer and later as an associate professor.

1926 Ullmann returned back to Geneva and took Swiss citizenship.

Ullmann discovered important two important preparative methods of synthesis:

• Alkylation with dimethyl sulfate (1900)
• Elimination of halogen from aryl halides with finely divided copper ( Ullmann coupling ) for the production of diaryls (1901 )

He was from 1914 to 1922, the first edition of the Encyclopedia of Industrial Chemistry in 12 volumes out, under the name of Encyclopedia of Industrial Chemistry, updated constantly, until today a standard work. Probably the first private assistant worked from 1905 to about 1910 in his laboratory at the University, his future wife, Irma Goldberg.