Pyrimidine compounds I ##STR1##
X is C(CO.sub.2 CH.sub.3).dbd.NOCH.sub.3, C(CONHCH.sub.3).dbd.NOCH.sub.3, C(CO.sub.2 CH.sub.3).dbd.CHOCH.sub.3, C(CO.sub.2 CH.sub.3).dbd.CHCH.sub.3 or N(CO.sub.2 CH.sub.3)--OCH.sub.3 ;
R.sup.1, R.sup.2 are hydrogen, alkyl, haloalkyl or alkoxy;
A is ##STR2##
R.sup.3 is hydrogen, alkyl, haloalkyl, phenoxyalkyl, cycloalkyl, cyano, alkoxy, hydroxyl or halogen;
R.sup.4 is hydrogen, optionally substituted alkyl, alkenyl, alkynyl, haloalkenyl, haloalkynyl, cycloalkyl or alkoxy;
Y is hydrogen, hydroxyl, halogen, optionally substituted aryl, hetaryl, cycloalkyl, cycloalkenyl, heterocyclyl, alkyl, alkenyl, alkynyl, haloalkyl, alkoxy, aryloxy, arylthio, hetaryloxy, hetarylthio, cycloalkyloxy or alkylthio
or their salt, their synthesis and intermediates therefore, and their activity against fungi or animal pests.