A method of producing N,N-disubstituted aminophenols of the general formula
wherein R 1 and R 2 are the same or different and each represents a saturated or unsaturated aliphatic hydrocarbyl, cycloalkyl, aralkyl,
the phenyl ring of which may be further substituted, alkoxyalkyl, or a cycloalkylalkyl, except that R 1 and R 2 are not simultaneously methyl and R' represents hydrogen, halogen, nitro, cyano, alkyl or alkoxy, which comprises reacting an aminophenol of general formula
wherein R 3 represents hydrogen or R 1 , and R' is as defined above, with an organic halide species of general formula R 2 X wherein R 2 is as defined above and X is halogen under aqueous acidic conditions with the periodic addition of an acid trapping agent in such a way that continuous monitoring of pH is not required.