The invention relates to novel triazolopyrimidines of formula (I), in which R
1
, R
2
, R
3
and X are defined as cited in the description, to a method for producing said substances and to their use for controlling undesirable micro-organisms. The invention also relates to novel intermediate products of the formulae (II), (VI), (VII-a) and (VII-b), in addition to methods for producing said substances.
The invention relates to novel triazolopyrimidines of formula (I), in which R
1
, R
2
, R
3
, R
4
and X are defined as cited in the description, to a method for producing said substances and to their use for controlling undesirable micro-organisms. The invention also relates to novel intermediate products of the formulae (II), (IV), (V-a) and (V-b), in addition to methods for producing said substances.
Neue Triazolopyrimidine der Formel (I) in welcher R1, R2, R3, R4 und X die in der Beschreibung angegebenen Bedeutungen haben, ein Verfahren zur Herstellung dieser Stoffe und deren Verwendung zur Bekämpfung von unerwünschten Mikroorganismen. Neue Zwischenprodukte der Formeln (II), (IV), (V-a) und (V-b) sowie Verfahren zur Herstellung dieser Stoffe.