3-Methyl-2-buten-1-OL → 3,7-Dimethylocta-2,6-Dienal

Participants

Reaction Steps

100 parts of 3-methyl-2-buten-1ol is brought to refluxing temperature (140° C) and 100 parts of 3,3-dimethylacrolein in which 2 parts of dibensoyl peroxide has been dissolved is introduced in the course of one hour while stirring. The reaction mixture is then heated for another three hours at 140° C, while the water formed is continuously removed using pentane as entrainer. Working up gives 105 parts of citral. The yield is thus 86% of theory based on 3,3-dimethylacrolein at a conversion of 67%.

Provenance & Evidence