Jakob Meisenheimer (14 June 1876 – 2 December 1934) was a German

chemist A chemist (from Greek ''chēm(ía)'' alchemy; replacing ''chymist'' from Medieval Latin ''alchemist'') is a scientist trained in the study of chemistry. Chemists study the composition of matter and its properties. Chemists carefully describe ...

. He made numerous contributions to

organic chemistry Organic chemistry is a subdiscipline within chemistry involving the science, scientific study of the structure, properties, and reactions of organic compounds and organic materials, i.e., matter in its various forms that contain carbon atoms.Clay ...

, the most famous being his proposed structure for a group of compounds now named Meisenheimer complex. He also proposed the mechanism of the

Beckmann rearrangement The Beckmann rearrangement, named after the German chemist Ernst Otto Beckmann (1853–1923), is a rearrangement of an oxime functional group to substituted amides. The rearrangement has also been successfully performed on haloimines and nitrones ...

. Later in his career, he reported the synthesis of the

pyridine-N-oxide Pyridine-''N''-oxide is the heterocyclic compound with the formula C5H5NO. This colourless, hygroscopic solid is the product of the oxidation of pyridine. It was originally prepared using peroxyacids as the oxidising agent. The compound is us ...

References

* {{DEFAULTSORT:Meisenheimer, Jakob 1876 births 1934 deaths 20th-century German chemists Academic staff of the University of Greifswald Scientists from Frankfurt