Sulfenylium ions

{
  "id": "MLC-T-CHM-011553",
  "term": "Sulfenylium ions",
  "field": "Chemistry",
  "definition": "Cations of the formula RS+, with a single organic group on a positively charged sulfur atom; the synonymous name is sulfanylium ion. They are strongly electrophilic transient species, best known as the reactive form of sulfenyl halides and related reagents in additions to alkenes. Adding to a double bond, the ion forms a bridged three-membered thiiranium ion, which a nucleophile then opens.",
  "synonyms": [
    "sulfanylium ions"
  ],
  "subject": "Organic and Biomolecular Chemistry",
  "see_also": [
    "sulfenic acids"
  ],
  "references": [
    "PAC, 1995, 67, 1307. 'Glossary of class names of organic compounds and reactivity intermediates based on structure (IUPAC Recommendations 1995)' on page 1368 (https://doi.org/10.1351/pac199567081307)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/sulfenylium-ions/"
}