Otto Wallach
Otto Wallach | |
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Walter Haworth, Adolf Sieverts |
Otto Wallach (German pronunciation: German chemist and recipient of the 1910 Nobel Prize in Chemistry for his work on alicyclic compounds.[1][2]
Biography
Wallach was born in
Stettin (Szczecin) and later to Potsdam. Otto Wallach went to school, a Gymnasium, in Potsdam, where he learned about literature and the history of art
, two subjects he was interested his whole life. At this time he also started private chemical experiments at the house of his parents.
In 1867 he started studying chemistry at the
.He died on 26 February 1931, and was buried in the Göttingen.
Major works
During his work with
Friedrich Kekulé in Bonn he started a systematic analysis of the terpenes present in essential oils. Up to this time only a few had been isolated in pure form, and structural information was sparse. Melting point comparison and the measurement of mixtures was one of the methods to confirm identical substances. For this method the mostly liquid terpenes had to be transformed into crystalline compounds. With stepwise derivatisation, especially additions to the double bond present in some of the terpenes, he achieved the goal of obtaining crystalline compounds. The investigation of the rearrangement reactions of cyclic unsaturated
terpenes made it possible to obtain the structure of an unknown terpene by following the rearrangement to a known structure of a terpene. With these principal methods he opened the path to systematic research on terpenes.
He was responsible for naming terpene and pinene, and for undertaking the first systematic study of pinene.
He wrote a book about the chemistry of terpenes, "Terpene und Campher" (1909).[citation needed]
Otto Wallach is known for
Leuckart-Wallach reaction (which he developed along with Rudolf Leuckart) and the Wallach rearrangement.[citation needed
]
Works
- Tabellen zur chemischen Analyse. Weber, Bonn 1880. Digital edition of the University and State Library Düsseldorf.
- Terpene und Campher : Zusammenfassung eigener Untersuchungen auf dem Gebiet der alicyclischen Kohlenstoffverbindungen. 2. Aufl. Leipzig : von Veit, 1914. Digital edition of the University and State Library Düsseldorf.
See also
References
- .
- PMID 21110354.
- ISBN 978-0-89356-562-6.
- ^ Otto Wallach (1869). Über vom Toluol abgeleitete neue isomere Verbindungen: Inaug. Diss. E. A. Huth.
- ^ "Chemistry Tree - Otto Wallach". academictree.org. Retrieved 23 March 2019.
External links
Wikimedia Commons has media related to Otto Wallach.
- Otto Wallach on Nobelprize.org including the Nobel Lecture, 12 December 1910 Alicyclic Compounds
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