Hydrogen Peroxide → 3,7-Dimethylocta-2,6-Dienal

Participants

Reaction Steps

A mixture of 100 parts of 3-methyl-2-buten-1-ol, 100 parts of 3,3-dimethylacrolein, 200 parts of ethylene glycol monomethyl ether and 3 parts of 30% aqueous hydrogen peroxide solution is heated under reflux for six hours while stirring and the water formed is removed continuously using pentane as entrainer. Fractional distillation of the reaction product gives 84.5 parts of citral, equivalent to a yield of 88% of theory, at a conversion of 53% (based on 3,3-dimethylacrolein).

Provenance & Evidence