• Presentation
  • Reactions
  • Contact
  • Addition reactions
    • Simple addition
    • Oxidative addition
    • Addition with insertion
    • Addition with elimination
  • Substitution reactions
    • Dissociative mechanism
    • Associative mechanism
    • Exchange mechanism
  • Double sustitution or exchange reactions
    • Halide exchange mechanism
    • Exchange mechanism in other compounds
  • Rearrangement or isomerization reactions
    • Isomerization mechanisms in compounds of representative elements
    • Isomerization mechanisms in coordination compounds
  • Proton transfer reactions
    • Proton transfer in compounds of representative elements
    • Proton transfer in compounds of transition elements
  • Electron transfer reactions
    • Proton transfer in compounds of representative elements
    • Proton transfer in compounds of transition elements

Double sustitution or exchange reactions.

In these reactions there are two reaction centers exchanging one of the substituents.

E-X + E´-Y ⇔ E-Y + E-X

These reactions are common for hydrides and halides. The most common mechanism is named concerted four centers (see examples).

  • Halide exchange mechanism
  • Exchange mechanism in other compounds