Cyclic beta- and gamma -diketones of the adamantane series were synthesized by reactions of chlorides of 1-adamantanecarboxylic acids and 1-adamantyl bromomethyl ketone with cyclic enamines 1-morpholino-1-cyclopentene and 1-morpholino-1-cyclohexene. Cyclization of the beta -diketones obtained was performed by reaction with hydroxylamine and phenylhydrazine.