Replacement operation

{
  "id": "MLC-T-CHM-010194",
  "term": "Replacement operation",
  "field": "Chemistry",
  "definition": "A conceptual operation in chemical nomenclature where an atom or group in a parent structure is formally replaced by another, creating a new name for the modified structure. This is most prominently used in 'a' nomenclature, where a skeletal atom of a parent hydride is substituted by a heteroatom. For instance, replacing a CH2 group in cyclohexane with an oxygen atom using the prefix 'oxa' generates the name oxacyclohexane, which is the systematic name for tetrahydropyran.",
  "subject": "Organic and Biomolecular Chemistry",
  "references": [
    "Blue Book Guide, p. 23 (https://doi.org/10.1351/pac199971071327)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/replacement-operation/"
}