Compounds of Formula I are disclosed which are useful as fungicides
1
wherein
R
1
is hydrogen; halogen; C
1
-C
2
alkoxy; C
1
-C
2
haloalkoxy; cyano; or C
1
-C
2
alkyl optionally substituted with halogen, C
1
-C
2
alkoxy or cyano;
R
2
is hydrogen; halogen; or C
1
-C
4
alkyl optionally substituted with halogen, C
1
-C
2
alkoxy or cyano;
R
3
is hydrogen; halogen; C
1
-C
4
alkoxy; C
1
-C
4
haloalkoxy; or C
1
-C
4
alkyl optionally substituted with halogen, C
1
-C
2
alkoxy or cyano; or
R
2
and R
3
can be taken together as —CH
2
CH
2
—;
R
4
is C
1
-C
2
alkyl;
R
5
is R
6
, CH(R
8
)OR
6
, CH(R
8
)CH(R
7
)R
6
or C(R
8
)═C(R
7
)R
6
;
and R
6
, R
7
and R
8
are as defined in the disclosure.
Also disclosed are compositions containing the compounds of Formula I and a method for controlling plant diseases caused by fungal plant pathogens which involves applying an effective amount of a compound of Formula I.
本发明揭示了一种公式I的化合物,其可用作杀菌剂。其中,R1为氢;卤素;C1-C2烷氧基;C1-C2卤代烷氧基;
氰基;或C1-C2烷基,可选择地取代卤素、C1-C2烷氧基或
氰基;R2为氢;卤素;或C1-C4烷基,可选择地取代卤素、C1-C2烷氧基或
氰基;R3为氢;卤素;C1-C4烷氧基;C1-C4卤代烷氧基;或C1-C4烷基,可选择地取代卤素、C1-C2烷氧基或
氰基;或R2和R3可以作为—CH2CH2—一起取代;R4为C1-C2烷基;R5为R6、CH(R8)OR6、CH(R8)CH(R7)R6或C(R8)═C(R7)R6;其中,R6、R7和R8如公开所述。此外,本发明还揭示了含有公式I化合物的组合物,以及一种控制由真菌植物病原体引起的植物病害的方法,该方法涉及施用公式I化合物的有效量。