Iminium
The general structure of an iminium cation
An iminium salt or cation in organic chemistry has the general structure [R1R2C=NR3R4]+ and is as such a protonated or substituted imine.[1] 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.
Reactions involving iminium species
- Aza-Cope rearrangement
- Beckmann rearrangement
- Eschenmoser's salt
- Duff reaction
- Stephen reaction
- Vilsmeier-Haack reaction
- Pictet-Spengler
- Mannich reaction
Iminylium ions
Iminylium ions have the general structure R2C=N+. They form a subclass of nitrenium ions.[2]
See also
References
- ↑ IUPAC, Compendium of Chemical Terminology, 2nd ed. (the "Gold Book") (1997). Online corrected version: (2006–) "iminium compounds".
- ↑ IUPAC, Compendium of Chemical Terminology, 2nd ed. (the "Gold Book") (1997). Online corrected version: (2006–) "iminylium ions".
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