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 graduated scientist trained in the study of chemistry, or an officially enrolled student in the field. Chemists study the composition of ...

. 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 matter, organic materials, i.e., matter in its various forms that contain ...

, the most famous being his proposed structure for a group of compounds now named

Meisenheimer complex A Meisenheimer complex or Jackson–Meisenheimer complex in organic chemistry is a 1:1 reaction adduct between an arene compound, arene carrying electron withdrawing groups and a nucleophile. These complexes are found as reactive intermediates in nu ...

. 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 reaction, rearrangement of an oxime functional group to substituted amides. The rearrangement has also been successfully performed on ...

. Later in his career, he reported the synthesis of the pyridine-''N''-oxide.

References

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