Title: nitrilium betaines
Long Title: IUPAC Gold Book - nitrilium betaines
DOI: 10.1351/goldbook.N04155
Status: current

Definition
Derivatives of nitriles having the general structure $\ce{R–C#N^{+}–Y^{−}}$. A subclass of 1,3-dipolar compounds including nitrile imides, nitrile oxides, nitrile sulfides and nitrile ylides.

Related Terms
- dipolar compounds: https://goldbook.iupac.org//terms/view/D01753
- nitrile imides: https://goldbook.iupac.org//terms/view/N04148
- nitrile oxides: https://goldbook.iupac.org//terms/view/N04150
- nitrile sulfides: https://goldbook.iupac.org//terms/view/N04152
- nitrile ylides: https://goldbook.iupac.org//terms/view/N04153
- nitriles: https://goldbook.iupac.org//terms/view/N04151

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)

Other Outputs
- html: https://goldbook.iupac.org/terms/view/N04155/html
- json: https://goldbook.iupac.org/terms/view/N04155/json
- xml: https://goldbook.iupac.org/terms/view/N04155/xml

Citation: 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. 10.1351/goldbook.N04155
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Accessed: 2026-05-06T16:01:30+00:00