Γ-Valerolactone

Γ-Valerolactone is an organic compound that is classified as a lactone. It is a colorless liquid with a fruity odor, and it is used as a flavoring agent and in the production of polymers.

Chemical Structure and Properties

Γ-Valerolactone has a five-membered ring structure, with the chemical formula C₅H₈O₂. It is a chiral molecule, meaning it has a non-superimposable mirror image. The compound is soluble in water and most organic solvents. It has a boiling point of 207-208°C and a melting point of -30°C.

Production

Γ-Valerolactone can be produced from levulinic acid, which is derived from cellulose. This process involves the hydrogenation of levulinic acid in the presence of a catalyst, typically a metal such as ruthenium or palladium.

Uses

In the food industry, Γ-Valerolactone is used as a flavoring agent due to its fruity odor. It is also used in the production of polymers, as it can be polymerized into polyvalerolactone, a biodegradable polymer. In addition, Γ-Valerolactone can be used as a solvent in various chemical reactions.

Safety

Γ-Valerolactone is generally considered safe for use in food by the FDA. However, it can cause irritation if it comes into contact with the skin or eyes, and it may be harmful if swallowed or inhaled.

See Also

• Lactone
• Levulinic acid
• Polymer