Term: nitrilium betaines
https://doi.org/10.1351/goldbook.N04155

Definition:
Derivatives of nitriles having the general structure R–C≡N+–Y−. A subclass of 1,3-dipolar compounds including nitrile imides, nitrile oxides, nitrile sulfides and nitrile ylides.

Related Terms:
1) nitriles (http://doi.org/10.1351/goldbook.N04151).
2) dipolar compounds (http://doi.org/10.1351/goldbook.D01753).
3) nitrile imides (http://doi.org/10.1351/goldbook.N04148).
4) nitrile oxides (http://doi.org/10.1351/goldbook.N04150).
5) nitrile sulfides (http://doi.org/10.1351/goldbook.N04152).
6) nitrile ylides (http://doi.org/10.1351/goldbook.N04153).

Source: PAC, 1995, 67, 1307. 'Glossary of class names of organic compounds and reactivity intermediates based on structure (IUPAC Recommendations 1995)' on page 1351 (https://doi.org/10.1351/pac199567081307)

Citation: 'nitrilium betaines' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.N04155

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