5-Propyldihydro-2(3H)-furanone(CAS: 105-21-5)

5-Propyldihydro-2(3H)-furanone (CAS: 105-21-5) is a colorless to yellowish liquid with a fruity odor. It has a molecular weight of approximately 128.18 g/mol and a density of 0.923 g/cm³. The compound is slightly soluble in water but miscible with organic solvents. It is relatively stable under normal conditions but can react with strong oxidizing agents. It is used as a fragrance and flavoring agent.

5-Propyldihydro-2(3H)-furanone is typically synthesized via a condensation reaction between propionaldehyde and benzylidene acetone. The reaction is catalyzed by acids such as sulfuric acid and proceeds with high selectivity and good yield. The process involves heating the reactants to a controlled temperature, followed by purification steps to isolate the desired product.

5-Propyldihydro-2(3H)-furanone (CAS: 105-21-5) is primarily used in the food and fragrance industries as a flavor and fragrance component. It is also utilized in the pharmaceutical industry for its potential as a terpenoid precursor and in the chemical industry for its reactivity in various synthetic pathways.

When handling 5-Propyldihydro-2(3H)-furanone (CAS: 105-21-5), it is important to use appropriate personal protective equipment (PPE) such as gloves, goggles, and a lab coat. It should be handled in a well-ventilated area or a fume hood to avoid inhalation of the vapor. Spills should be cleaned up promptly using appropriate absorbent materials. Always refer to the Safety Data Sheet (SDS) for detailed handling and emergency procedures.