Skip to main content
Chemistry LibreTexts


  • Page ID
  • A hemiacetal is a compound that has the following general structural formula.

    R1 = H, alkyl, aryl
    R2 = alkyl


    The functional group 1 in an organic molecules is called the hemiacetal group; the carbon atom bearing the two oxygen atoms is the hemiacetal carbon.

    see also cyclic hemiacetal, acetal, hemiketal

    Contributors and Attributions

    • Was this article helpful?