The invention provides fungicidal compounds of formula (I) and salts thereof
wherein: R1 is alkyl, alkenyl, alkynyl, carbocyclyl or heterocyclyl,
each of which may be substituted, or hydrogen; R2 and R3,
which may be the same or different, are any group defined for R1; cyano;
acyl; ORa or SRa, where Ra is
alkyl, alkenyl, alkynyl, carbocyclyl or heterocyclyl, each of which may be substituted;
or R2 and R3, or R2 and R1, together
with their interconnecting atoms may form a ring, which may be substituted; R4
is alkyl, alkenyl, alkynyl, carbocyclyl or heterocyclyl, each of which may
be substituted; hydroxy; mercapto; azido; nitro; halogen; cyano; acyl; optionally
substituted amino; cyanato; thiocyanato; SF5; ORa;
SRa or Si(Ra)3; m is 0 to 3; when
present R5, which may be the same or different to any other R5,
is any group defined for R4; R6 is optionally substituted
carbo- or heterocylclyl; and A is a defined linking group, or AR6
and R5 together with benzene ring M form an optionally substituted
fused ring system.
