Di-π-methane rearrangement

{
  "id": "MLC-T-CHM-003234",
  "term": "Di-π-methane rearrangement",
  "field": "Chemistry",
  "definition": "A photochemical reaction involving a 1,4-diene or a related system with a central sp3-hybridized carbon atom, which undergoes rearrangement upon electronic excitation. The reaction typically proceeds through a diradical intermediate, leading to the formation of a vinylcyclopropane derivative. This rearrangement is a common pathway for the photochemistry of certain unsaturated compounds.",
  "subject": "Organic and Biomolecular Chemistry",
  "see_also": [
    "photochemical reaction",
    "aza-di-π-methane rearrangement",
    "di-π-silane rearrangement",
    "moiety",
    "molecular entity",
    "oxa-di-π-methane rearrangement"
  ],
  "references": [
    "PAC, 2007, 79, 293. 'Glossary of terms used in photochemistry, 3rd edition (IUPAC Recommendations 2006)' on page 325 (https://doi.org/10.1351/pac200779030293)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/di-p-methane-rearrangement/"
}