Johann Karl Wilhelm Ferdinand Tiemann | |
---|---|
![]() Ferdinand Tiemann
c. 1880 in Berlin | |
Born | Rübeland (now part of
Elbingerode),
Kingdom of Hanover | June 10, 1848
Died | November 14, 1899 | (aged 51)
Alma mater | TU Braunschweig |
Known for |
Reimer-Tiemann reaction, Tiemann rearrangement |
Scientific career | |
Institutions | University of Berlin |
Doctoral advisor | August Wilhelm von Hofmann |
Doctoral students |
Julius Stieglitz, Carl Harries |
Johann Karl Wilhelm Ferdinand Tiemann (June 10, 1848 – November 14, 1899) was a German chemist and together with Karl Reimer discoverer of the Reimer-Tiemann reaction. [1]
Beginning in 1866, Tiemann studied pharmacy at the TU Braunschweig where he graduated in 1869. [1] His professor in Brunswick wrote a letter of recommendation to August Wilhelm von Hofmann at the University of Berlin where Tiemann started as assistant of von Hofmann in 1869. [2] In 1874 Wilhelm Haarmann and Tiemann started a company, after they discovered the synthesis of vanillin from coniferyl alcohol. The vanillin plant Holzminden was not very successful before Karl Reimer discovered the Reimer-Tiemann reaction which opened an alternative synthesis route to vanillin. In 1882 Tiemann became a professor at the University of Berlin. [1]
He was involved in the first synthesis of Jonon a compound of the sweet violet ( Viola odorata), which became a huge success for Harmann & Reimer company.
August Wilhelm von Hofmann married Berta the younger sister of Ferdinand Tiemann. [1]