Fungicidal 5-phenyl substituted 2-(cyanoamino) pyrimidines

摘要

Pyrimidines of formula Iin whichR<1 represents hydrogen or alkyl, haloalkyl, alkenyl, alkynyl, alkadienyl, alkoxy, cycloalkyl, phenyl, or 5- or 6-membered heteroaryl 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 tri-alkyl-silyl, formyl or alkoxycarbonyl,wherein R<1 groups are unsubstituted or substituted as defined in the specification;R<2 represents phenyl, cycloalkyl or 5- or 6-membered heteroaryl, containing one to four nitrogen atoms or one to three nitrogen atoms and one sulfur or oxygen atom, which are unsubstituted or substituted;R<3 represents hydrogen, halogen or alkyl, alkoxy, alkylthio, alkylamino or dialkylamino; which are unsubstituted or substituted;R<4 represents hydrogen or alkyl, alkenyl or alkynyl; which are unsubstituted or substituted; andX represents O, S, NR<5 or a single bond, wherein R<5 represents hydrogen or alkyl; orR<1 and R<5 together with the interjacent nitrogen atom form a heterocyclic ring;processes and intermediates for preparing these compounds, to compositions comprising them and to their use for controlling harmful fungi.