Nitrilium betaines

{
  "id": "MLC-T-CHM-007959",
  "term": "Nitrilium betaines",
  "field": "Chemistry",
  "definition": "A class of 1,3-dipolar compounds that are resonance-stabilized zwitterionic species with a formal positive charge on a nitrogen atom and a negative charge on an adjacent atom. These compounds contain a C≡N+ bond and an adjacent negatively charged atom, such as oxygen, nitrogen, or carbon. They are reactive intermediates that participate in cycloaddition reactions, leading to the formation of heterocyclic rings.",
  "subject": "Organic and Biomolecular Chemistry",
  "see_also": [
    "dipolar compounds",
    "nitrile imides",
    "nitrile oxides",
    "nitrile sulfides",
    "nitrile ylides",
    "nitriles"
  ],
  "references": [
    "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)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/nitrilium-betaines/"
}