The Zincke reaction is an organic reaction in which a pyridine is transformed into a pyridinium salt by reaction with 2,4-dinitro-chlorobenzene and a primary amine, named after Theodor Zincke.
The Zincke reaction should not be confused with the Zincke-Suhl reaction or the Zincke nitration. Furthermore, the Zincke reaction has nothing to do with the chemical element zinc.
Read more about Zincke Reaction: Reaction Mechanism, Applications, Zincke Aldehydes, 2007 Rediscovery
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“The excessive increase of anything often causes a reaction in the opposite direction.”
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