Oxidation of hydrogenated limonene with ozone gave perfumery hexahydro-p-acetyltoluene wich was in agreement with the synthetic specimen. It was concluded that p-menthene-1 was accompanied by a small quantity of 1-methyl-4-isopropenyl-cyclohexane as an intermediate in the hydrogenation of limonene. Additions of hydrogen, hydrochloric acid, oxygen and ozone to limonene are also discussed herein.
