Product-determining step

{
  "id": "MLC-T-CHM-009509",
  "term": "Product-determining step",
  "field": "Chemistry",
  "definition": "A step in a multi-step reaction sequence that determines the final product distribution, especially when multiple reaction pathways are possible. This step typically occurs after the rate-determining step and involves an irreversible transformation or branching point. The relative energies of transition states leading to different products dictate the outcome.",
  "subject": "Organic and Biomolecular Chemistry",
  "see_also": [
    "rate-controlling step",
    "reaction coordinate",
    "stepwise reaction"
  ],
  "references": [
    "PAC, 1994, 66, 1077. 'Glossary of terms used in physical organic chemistry (IUPAC Recommendations 1994)' on page 1153 (https://doi.org/10.1351/pac199466051077)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/product-determining-step/"
}