Ferdinand Tiemann
Encyclopedia
Johann Karl Wilhelm Ferdinand Tiemann was a German chemist and together with Reimer
discoverer of the Reimer-Tiemann reaction
.
Beginning in 1866, Tiemann studied pharmacy at the TU Braunschweig where he graduated in 1869. His professor in Brunswick wrote a letter of recommendation to August Wilhelm von Hofmann
at the University of Berlin where Tiemann started as assisatant of von Hofmann in 1869. 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 Ludwig Reimer discovered the Reimer-Tiemann reaction
which opened an alternative synthesis route to vanillin. In 1882 Tiemann became professor at the University of Berlin.
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 Tiemenn.
Reimer
Reimer may refer to:People:* Arthur E. Reimer: American political candidate for the Socialist Labor Party of America* David Reimer: German-Canadian man whose unsuccessful sexual reassignment to female after his penis was inadvertently destroyed during circumcision is a famous case study in...
discoverer of the Reimer-Tiemann reaction
Reimer-Tiemann reaction
The Reimer-Tiemann reaction is a chemical reaction used for the ortho-formylation of phenols. The reaction was discovered by Karl Ludwig Reimer and Ferdinand Tiemann...
.
Beginning in 1866, Tiemann studied pharmacy at the TU Braunschweig where he graduated in 1869. His professor in Brunswick wrote a letter of recommendation to August Wilhelm von Hofmann
August Wilhelm von Hofmann
August Wilhelm von Hofmann was a German chemist.-Biography:Hofmann was born at Gießen, Grand Duchy of Hesse. Not intending originally to devote himself to physical science, he first took up the study of law and philology at Göttingen. But he then turned to chemistry, and studied under Justus von...
at the University of Berlin where Tiemann started as assisatant of von Hofmann in 1869. In 1874 Wilhelm Haarmann
Wilhelm Haarmann
Gustav Ludwig Friedrich Wilhelm Haarmann was a German chemist and together with Karl Ludwig Reimer and Ferdinand Tiemann founded the Haarmann & Reimer chemical plant for the production of vanillin....
and Tiemann started a company, after they discovered the synthesis of vanillin
Vanillin
Vanillin is a phenolic aldehyde, an organic compound with the molecular formula C8H8O3. Its functional groups include aldehyde, ether, and phenol. It is the primary component of the extract of the vanilla bean. It is also found in Leptotes bicolor, roasted coffee and the Chinese red pine...
from coniferyl alcohol
Coniferyl alcohol
Coniferyl alcohol is an organic compound. This colourless crystalline solid is a phytochemical, one of the monolignols. It is synthethized via the phenylpropanoid biochemical pathway. When copolymerized with related aromatic compounds, coniferyl alcohol forms lignin or lignans...
. The vanillin plant Holzminden was not very successful before Karl Ludwig Reimer discovered the Reimer-Tiemann reaction
Reimer-Tiemann reaction
The Reimer-Tiemann reaction is a chemical reaction used for the ortho-formylation of phenols. The reaction was discovered by Karl Ludwig Reimer and Ferdinand Tiemann...
which opened an alternative synthesis route to vanillin. In 1882 Tiemann became professor at the University of Berlin.
He was involved in the first synthesis of Jonon
Ionone
The ionones are a series of closely related chemical substances that are part of a group of compounds known as rose ketones, which also includes damascones and damascenones. Ionones are aroma compounds found in a variety of essential oils, including rose oil...
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 Tiemenn.