Compounds of the formula I
in which
R1 is C1-C4alkyl;
R2 is cyano or NH2C(S)-;
R3 is hydrogen, C1-C4alkyl, C1-C4haloalkyl, C3- or C4alkenyl, C3- or C4alkynyl, C3-C8haloalkenyl, NC-CH2-, HOC(O)-CH2- or C1-C4alkoxy-C(O)-CH2-;
and
R4 to R6, R60, R61, R70, X1, X2, n1 and A1-B1 are as defined in claim 1, and the pyrazole N-oxide, agronomically acceptable salts and stereomers of these compounds of the formula I, with the exclusion of the compound of the formula
have good selective herbicidal properties when used pre- and post-emergence. The preparation of these compounds and their use as herbicidally active ingredients are described.
式 I 的化合物
其中
R1 是 C1-C4 烷基
R2 是
氰基或 NH2C(S)-;
R3是氢、C1-C4烷基、C1-C4卤代烷基、C3-或C4烯基、C3-或C4炔基、C3-C8卤代烯基、NC-
CH2-、HOC(O)- -或C1-C4烷氧基-C(O)- -;
和
R4 至 R6、R60、R61、R70、X1、X2、n1 和 A1-B1 如权利要求 1 中所定义,并且式 I 的这些化合物的
吡唑 N-氧化物、农艺学上可接受的盐和立体异构体(不包括式 I 的化合物)具有良好的选择性除草特性。
在萌芽前和萌芽后使用时具有良好的选择性除草特性。本文介绍了这些化合物的制备方法及其作为除草活性成分的用途。