Menthone 1,2-glycerol ketal NEW

Description: Menthol glycerol ketone is a kind of substance with a very weak mint odor, lower irritation, and more lasting cooling effect. When the mass fraction of menthol glycerol acetone is 10%, there is almost no aroma. When the concentration is 5-10 mg/kg, a gradually enhanced cool taste can be felt in the mouth, and the throat can also feel cold quickly, accompanied by a slight irritation and burning.

Synthesis mechanism: Glycerol acetone of menthol is catalyzed by acid, from the carbonyl group of menthol and the hydroxyl group of glycerol to produce half acetone, the generated half acetone is unstable, and will directly condensation with the hydroxyl group of glycerol not involved in the reaction to produce menthol glycerol acetone and a molecule of water, the process is reversible, so timely removal of water in the reaction system can significantly improve the reaction efficiency.