Process for the production of cyclic ketones

continuous process for the production of at least one monocyclic ketone having 4 to 20 carbon atoms by reaction at a temperature of 170 to 340 ° C a G1 mixture containing at least one monocyclic olefin with 4 to 20 carbon atoms with a mixture G2 containing at least dinitrogen monoxide, wherein the reaction is carried out adiabatically and the mixture G1 and / or G2 before the reaction to give at least one monocyclic ketone having 4 to 20 carbon atoms are preheated to a temperature of 170 to 270 ° C, extracting the thermal energy required to preheat the mixture G1 and / or G2 at least part of the product stream of the process.