5-Halogen-6-phenyl-7-fluoroalkylamino-triazolopyrimidines of formula I: (I) in which R.sup.1 is hydrogen, fluoro, alkyl, alkenyl, alkynyl, alkadienyl, where the carbon chains of these radicals may be unsubstituted or substituted as defined in the description; R.sup.2 is hydrogen, alkyl, alkenyl, alkynyl, alkadienyl, where these radicals may be unsubstituted or substituted; R.sup.3 is fluoroalkyl or fluoroalkenyl; X is halogen; n is 0 or an integer from 1 to 4; L each independently is halogen, nitro, alkyl, haloalkyl, alkoxy or haloalkoxy. Processes for their preparation, compositions containing them and to their use for combating phytopathogenic fungi. ##STR00001##

Substituted 6-(2-methoxy-phenyl)-triazolopyrimidines of formula I ##STR00001## in which R.sup.1 and R.sup.2 independently denote hydrogen or alkyl, alkenyl, alkynyl, or alkadienyl, haloalkyl, haloalkenyl, cycloalkyl, phenyl, naphthyl, or 5- or 6-membered heterocyclyl, containing one to four nitrogen atoms or one to three nitrogen atoms and one sulfur or oxygen atom, or 5- or 6-membered heteroaryl, containing one to four nitrogen atoms or one to three nitrogen atoms and one sulfur or oxygen atom, or where R.sup.1 and R.sup.2 radicals may be unsubstituted or substituted as defined in the description, or R.sup.1 and R.sup.2 together with the interjacent nitrogen atom represent a 5- or 6-membered heterocyclic ring, containing one to four nitrogen atoms or one to three nitrogen atoms and one sulfur or oxygen atom, which may be substituted; L.sup.1, L.sup.2 independently denote hydrogen or halogen, provided that at least one from L.sup.1 or L.sup.2 is halogen; X is halogen, cyano, alkyl, alkoxy, haloalkoxy or alkenyloxy; processes for their preparation, compositions containing them and to their use for combating phytopathogenic fungi.