{"term":{"id":"04155","title":"nitrilium betaines","longtitle":"IUPAC Gold Book - nitrilium betaines","doi":"10.1351\/goldbook.N04155","code":"N04155","status":"current","definitions":[{"id":1,"text":"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.","links":[{"term":"dipolar compounds","url":"https:\/\/goldbook.iupac.org\/\/terms\/view\/D01753"},{"term":"nitrile imides","url":"https:\/\/goldbook.iupac.org\/\/terms\/view\/N04148"},{"term":"nitrile oxides","url":"https:\/\/goldbook.iupac.org\/\/terms\/view\/N04150"},{"term":"nitrile sulfides","url":"https:\/\/goldbook.iupac.org\/\/terms\/view\/N04152"},{"term":"nitrile ylides","url":"https:\/\/goldbook.iupac.org\/\/terms\/view\/N04153"},{"term":"nitriles","url":"https:\/\/goldbook.iupac.org\/\/terms\/view\/N04151"}],"sources":["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)"]}],"altoutputs":{"html":"https:\/\/goldbook.iupac.org\/terms\/view\/N04155\/html","xml":"https:\/\/goldbook.iupac.org\/terms\/view\/N04155\/xml","plain":"https:\/\/goldbook.iupac.org\/terms\/view\/N04155\/plain"},"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","license":"The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International (https:\/\/creativecommons.org\/licenses\/by-sa\/4.0\/) for individual terms.","collection":"If you are interested in licensing the Gold Book for commercial use, please contact the IUPAC Executive Director at executivedirector@iupac.org .","disclaimer":"The International Union of Pure and Applied Chemistry (IUPAC) is continuously reviewing and, where needed, updating terms in the Compendium of Chemical Terminology (the IUPAC Gold Book). Users of these terms are encouraged to include the version of a term with its use and to check regularly for updates to term definitions that you are using.","accessed":"2026-05-06T16:00:18+00:00"}}