Extrusion transformation

{
  "id": "MLC-T-CHM-004315",
  "term": "Extrusion transformation",
  "field": "Chemistry",
  "definition": "A chemical transformation in which an atom or group, originally bonded to two other atoms within a molecule, is ejected, leading to the formation of a new bond between those two atoms. This process is the formal reverse of an insertion reaction. A well-known example is the thermal extrusion of sulfur dioxide from a cyclic sulfone to form an alkene, or nitrogen from a diazene to form a C-C bond.",
  "subject": "Organic and Biomolecular Chemistry",
  "see_also": [
    "cheletropic reaction",
    "insertion",
    "transformation"
  ],
  "references": [
    "PAC, 1994, 66, 1077. 'Glossary of terms used in physical organic chemistry (IUPAC Recommendations 1994)' on page 1114 (https://doi.org/10.1351/pac199466051077)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/extrusion-transformation/"
}