Kinetic regularities cyclocondensation of 2-hydroxyimino-1,3-diketones with amines and ketones in the presence of zeolite NaA or azeotropic distillation of water. Establish the form of kinetic equations for the formation rate of N,N-dicyclohexyl-3,5-dimethyl-4-nitrosoaniline. We have determined the effective activation energy. New data confirm the previously proposed mechanism of the process and point to the catalytic effect of zeolite.