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An iminium salt or cation in organic chemistry has the general structure [R1R2C=NR3R4]+ and is as such a protonated or substituted imine. It is an intermediate in many organic reactions such as the Beckmann rearrangement, Vilsmeier-Haack reaction, Stephen reaction or the Duff reaction. The use of the alternative names imonium compounds and immonium compounds is discouraged.
Contents
Reactions involving iminium species
Iminylium ions
Iminylium ions have the general structure R2C=N+. They form a subclass of nitrenium ions.
References
Iminium Wikipedia(Text) CC BY-SA