method for thermal cleavage of unsaturated ketones, 2 - (1 - cyclohexenyl) - cyclohexanone, 2 - cyclohexyliden - cyclohexanone and / or 2 - cyclohexenyliden - cyclohexanone

摘要

A process for cleavage of unsaturated multi-cyclic ketones involves thermal cracking of the liquid ketone at elevated temperatures in the absence of water to produce cyclohexanone and a variety of other cleavage products. Para-toluenesulfonic acid and transition metal oxides are advantageously employed as catalysts.