Fungicides

A compound having the formula (I):

• ##STR11## and stereoisomers thereof, wherein A is hydrogen, halo, hydroxy, C.sub.1-4 alkyl, C.sub.1-4 alkoxy, C.sub.1-4 haloalkyl, C.sub.1-4 haloalkoxy, C.sub.1-4 alkylcarbonyl, C.sub.1-4 alkoxycarbonyl, phenoxy nitro or cyano;
• R.sup.1 is heterocyclylalkyl, heteroaryloxyalkyl, heteroaryl or heteroaryloxy;
• R.sup.2 is hydrogen, C.sub.1-6 alkyl, C.sub.3-6 cycloalkyl, C.sub.3-6 cycloalkyl (C.sub.1-4)alkyl, aryl(C.sub.1-4)alkyl, aryloxy(C.sub.1-4)alkyl, C.sub.2-6 alkenyl, C.sub.2-6 alkynyl, C.sub.1-6 alkoxy, aryl, aryloxy, nitro, halo, cyano, --NR.sup.3 R.sup.4, --CO.sub.2 R.sup.3, --CONR.sup.3 R.sup.4, --COR.sup.3, --S(O)nR.sup.3 or (CH.sub.2).sub.m PO(OR.sup.3).sub.2 wherein n is 0, 1 or 2, m is 0 or 1, and R.sup.3 and R.sup.4, which are the same or different, are hydrogen, C.sub.1-6 alkyl, aryl(C.sub.1-6)alkyl, C.sub.2-6 alkenyl, C.sub.2-6 alkynyl, aryl or heteroaryl, or R.sup.1 and R.sup.2 join to form a tetrahydropyranyl ring system;
• any of the foregoing aryl moieties, which are phenyl or naphthyl, and any of the foregoing heterocyclyl or heteroaryl moieties which are selected from the group consisting of thienyl, furyl, pyrrolyl, triazolyl, thiazolyl, pyridyl, pyrimidinyl, pyrazinyl, pyridazinyl, triazinyl, quinolinyl and quinoxalinyl and N-oxides thereof being optionally substituted with one or more of halo, hydroxy, mercapto, C.sub.1-4 alkyl, C.sub.2-4 alkenyl, C.sub.2-4 alkynyl, C.sub.1-4 alkoxy, C.sub.2-4 alkynyloxy, halo(C.sub.1-4)alkyl, halo(C.sub.1-4)alkoxy, C.sub.1-4 alkylthio, hydroxy(C.sub.1-4)alkyl, C.sub.1-4 alkoxy(C.sub.1-4)alkyl, C.sub.3-6 cycloalkyl, C.sub.3-6 cycloalkyl(C.sub.1-4)alkyl, phenyl, pyridyl, pyrimidinyl, phenoxy, pyridyloxy, pyrimidinyloxy, phenyl(C.sub.1-4)alkyl in which the alkyl moiety is optionally substituted with hydroxy, pyridyl- or pyrimidinyl (C.sub.1-4)alkyl, phenyl (C.sub.2-4)alkenyl, pyridyl- or pyrimidinyl (C.sub.2-4)alkenyl, phenyl (C.sub.1-4)alkoxy, pyridyl- or pyrimidinyl (C.sub.1-4)alkoxy, phenoxy(C.sub.1-4 alkyl, pyridyloxy- or pyrimidinyloxy(C.sub.1-4)alkyl, C.sub.1-4 alkanoyloxy, benzoyloxy, cyano, thiocyanato, nitro, --NR'R", --NHCOR', --NHCONR'R", --CONR'R", --COOR', --OSO.sub.2 R', --SO.sub.2 R', --COR', --CR'.dbd.NR" or --N.dbd.CR'R" in which R' and R" are independently hydrogen, C.sub.1-4 alkyl, C.sub.1-4 alkoxy, C.sub.1-4 alkylthio, C.sub.3-6 cycloalkyl, C.sub.3-6 cycloalkyl(C.sub.1-4)alkyl, phenyl or benzyl, the phenyl and benzyl groups optionally substituted with halogen, C.sub.1-4 alkyl or C.sub.1-4 alkoxy;
• and any of the foregoing phenyl, pyridyl or pyrimidinyl substituents themselves being optionally substituted with one or more of halo, hydroxy, mercapto, C.sub.1-4 alkyl, C.sub.2-4 alkenyl, C.sub.2-4 alkynyl, C.sub.1-4 alkoxy, C.sub.2-4 alkenyloxy, C.sub.2-4 alkynyloxy, halo(C.sub.1-4)alkyl, halo(C.sub.1-4)alkoxy, C.sub.1-4 alkylthio, hydroxy(C.sub.1-4)alkyl, C.sub.1-4 alkoxy(C.sub.1-4)alkyl, C.sub.3-6 cycloalkyl, C.sub.3-6 cycloalkyl(C.sub.1-4)alkyl, alkanoyloxy, benzoyloxy, cyan, thiocyanato, nitro, --R'R", --NRCOR', --NHCONR'R", --CONR'R", --COOR', --SO.sub.2 R', --SO.sub.2 R', --COR', --CR'.dbd.NR" or --N.dbd.CR'R" in which R' and R" have the meanings given above.