Suvarna Garge


Updated on
Share on FacebookTweet on TwitterShare on LinkedIn
Lactol httpsuploadwikimediaorgwikipediacommonsaa

Beaphar puppy milk lactol

In organic chemistry, a lactol is the cyclic equivalent of a hemiacetal or a hemiketal. The compound is formed by the intramolecular nucleophilic addition of a hydroxyl group to the carbonyl group of an aldehyde or a ketone.


A lactol is often found as an equilibrium mixture with the corresponding hydroxyaldehyde. The equilibrium can favor either direction depending on ring size and other conformational effects.

The lactol functional group is prevalent in nature as component of aldose sugars.

Beaphar lactol kitty milk

Chemical reactivity

Lactols can participate in a variety of chemical reactions including:

  • Oxidation to form lactones
  • Reaction with alcohols to form acetals
  • The reaction of sugars with alcohols or other nucleophiles leads to the formation of glycosides
  • Reduction (deoxygenation) to form cyclic ethers
  • References

    Lactol Wikipedia

    Similar Topics
    This Is the Life (2008 film)
    Steve Atkins
    Polly Nelson