Wilhelm Haarmann
Encyclopedia
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
.
Beginning in 1866, Haarmann studied at the Mining academy Clausthal
later he changed to the University of Göttingen. He joined August Wilhelm von Hofmann
1869 at the University of Berlin. He received his Phd in Göttingen 1872. Together with Ferdinand Tiemann
, both working with Hoffmann, Harmann founded 1875 Haarmann's Vanillinfabrik, producing vanillin
from coniferin
. The Reimer-Tiemann reaction
discovered by Karl Ludwig Reimer opened an alternative path to vanillin and Reimer joined the company which was renamed to Haarmann & Raimer.
Haarmann & Raimer was bought by the Bayer AG in 1953 and became an independent company again in 2003 under the name Symrise
.
Ferdinand Tiemann
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...
founded the Haarmann & Reimer chemical plant for the production 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...
.
Beginning in 1866, Haarmann studied at the Mining academy Clausthal
Clausthal University of Technology
The Clausthal University of Technology is an institute of technology in Clausthal-Zellerfeld, Lower Saxony, Germany...
later he changed to the University of Göttingen. He joined 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...
1869 at the University of Berlin. He received his Phd in Göttingen 1872. Together with Ferdinand Tiemann
Ferdinand Tiemann
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...
, both working with Hoffmann, Harmann founded 1875 Haarmann's Vanillinfabrik, producing 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 coniferin
Coniferin
Coniferin is a glucoside of coniferyl alcohol. This white crystalline solid is a metabolite in conifers, serving as an intermediate in cell wall lignification, as well as having other biological roles....
. 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...
discovered by Karl Ludwig Reimer opened an alternative path to vanillin and Reimer joined the company which was renamed to Haarmann & Raimer.
Haarmann & Raimer was bought by the Bayer AG in 1953 and became an independent company again in 2003 under the name Symrise
Symrise
Symrise is a major producer of flavors and fragrances with sales of € 1,572 million in 2010. Major competitors include Firmenich, Givaudan, International Flavors and Fragrances and Takasago International.-History:...
.