Skip to main content
Chemistry LibreTexts

22.2 Reactivity of Enols: The Mechanism of Alpha-Substitution Reactions

  • Page ID
  • Objectives

    After completing this section, you should be able to write a detailed mechanism for an acid‑catalyzed, alpha‑substitution reaction of a carbonyl compound.

    How Enols React

    1) Acid-catalyzed enol formation:

    2) Electrophile (E+) attack and subsequent loss of proton from oxygen: