PURPOSE: To easily obtain the titled compound by using easily available acrylaldehyde diethylacetal as a raw material, subjecting to radical addition reaction with cis-4-heptenal, reducing the resultant intermediate and oxidizing the product with Jones reagent.

CONSTITUTION: The objective compound useful as a perfume discovered from an essential oil such as jasmine or peppermint, etc., can be produced by carrying out radical addition reaction of acrylaldehyde diethylacetal derived easily from acrylaldehyde with cis-4-heptenal to obtain γ-oxoaldehyde acetal intermediate exhibiting pheromone activity, reducing the intermediate to 1,1-diethoxy-cis-7- decen-4-ol and oxidizing the product with Jones reagent. The process is valuable because an intermediate useful as a production raw material for pheromones exhibiting the activity of animal pheromone is produced during the reaction and the reaction can be carried out under mild condition without using expensive reagent.