(2E,4E)-2,4-Octadienal(CAS: 5577-44-6)

(2E,4E)-2,4-Octadienal is a colorless to light yellow liquid with a strong aldehyde odor. Its molecular weight is approximately 132.17 g/mol. The compound is slightly soluble in water but soluble in most organic solvents. It is moderately reactive, especially towards nucleophiles and reductive aminations. It has a melting point of -31°C and a boiling point of 175°C under standard conditions.

(2E,4E)-2,4-Octadienal can be synthesized through the dehydration of (2E,4E)-2,4-octadien-1-ol or by the Wittig reaction using triphenylphosphonium bromide and octenyl bromide. The synthesis usually involves heating the reactants under reflux conditions, followed by distillation to purify the product. This method provides good yield and selectivity, making it a common route for industrial production.

(2E,4E)-2,4-Octadienal is widely used in the fragrance and flavor industry due to its characteristic odor. It also finds applications in the pharmaceutical industry for the synthesis of certain compounds. Additionally, it is used as a precursor in the polymer industry, where it can be incorporated into polymer structures. Its reactivity makes it useful in sensor technology and semiconductor manufacturing processes.

When handling (2E,4E)-2,4-Octadienal, proper personal protective equipment (PPE) such as gloves, goggles, and a lab coat is essential. Work should be conducted in a well-ventilated area or fume hood to avoid inhalation of the volatile compound. Spills should be carefully absorbed with inert materials and disposed of according to local regulations. Always refer to a Safety Data Sheet (SDS) for detailed handling and emergency procedures.