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Molecular rearrangement

Term · Chemistry · MLC-T-CHM-007513

A chemical reaction involving the migration of an atom or group from one position to another within the same molecule, leading to a new structural isomer. These reactions often proceed through carbocation or radical intermediates and are characterized by a change in the connectivity of atoms. Examples include the Wagner-Meerwein rearrangement and the Beckmann rearrangement.

Table 1. Record
IdentifierMLC-T-CHM-007513
FieldChemistry
SubjectOrganic and Biomolecular Chemistry
Synonymsrearrangement
ReferencesPAC, 1994, 66, 1077. 'Glossary of terms used in physical organic chemistry (IUPAC Recommendations 1994)' on page 1142 (https://doi.org/10.1351/pac199466051077)
See alsoCarbocation; Chemical species; Connectivity; Degenerate rearrangement; Entering group; Functional group; Hydron; Intermolecular; Intramolecular; Isomeric; Isomerization; Leaving group; Migration; Rearrangement stage; Sigmatropic rearrangement; Substitution reaction; Transformation
Record as JSON
{
  "id": "MLC-T-CHM-007513",
  "term": "Molecular rearrangement",
  "field": "Chemistry",
  "definition": "A chemical reaction involving the migration of an atom or group from one position to another within the same molecule, leading to a new structural isomer. These reactions often proceed through carbocation or radical intermediates and are characterized by a change in the connectivity of atoms. Examples include the Wagner-Meerwein rearrangement and the Beckmann rearrangement.",
  "synonyms": [
    "rearrangement"
  ],
  "subject": "Organic and Biomolecular Chemistry",
  "see_also": [
    "carbocation",
    "chemical species",
    "connectivity",
    "degenerate rearrangement",
    "entering group",
    "functional group",
    "hydron",
    "intermolecular",
    "intramolecular",
    "isomeric",
    "isomerization",
    "leaving group",
    "migration",
    "rearrangement stage",
    "sigmatropic rearrangement",
    "substitution reaction",
    "transformation"
  ],
  "references": [
    "PAC, 1994, 66, 1077. 'Glossary of terms used in physical organic chemistry (IUPAC Recommendations 1994)' on page 1142 (https://doi.org/10.1351/pac199466051077)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/molecular-rearrangement/"
}

Record 7,970 of 13,676 in Chemistry terminology (MLC-0109). Request the full dataset.