The present invention relates to compounds of the formula (I), in particular to pyrimidinyloxyphenylamidines of the formula (I), to the use of pyrimidinyloxyphenylamidines of the formula (I) according to the invention for controlling unwanted microorganisms, in particular phytopathogenic fungi and also to a composition for this purpose, comprising the pyrimidinyloxyphenylamidines of the formula (I) according to the invention. Furthermore, the invention relates to a method for controlling unwanted microorganisms, in particular phytopathogenic fungi, characterized in that the compounds of the formula (I) are applied to the microorganisms, in particular to the phytopathogenic fungi and/or in their habitat.
