申请人:Nissan Chemical Industries Ltd.
公开号:US04557753A1
公开(公告)日:1985-12-10
Pyrazole derivatives, preparations thereof, selective herbicidal compositions containing said derivatives and the use of said derivatives are provided. The pyrazole derivatives having selective herbicidal activity are represented by the formula I: ##STR1## wherein, A denotes a straight or branched lower alkylene or lower alkylidene group; X denotes a halogen atom, nitro group, a lower alkyl group, a lower haloalkyl group, a lower alkoxy group, a lower haloalkoxy group, a lower alkenyl group, phenyl group, cyano group, phenoxy group, a lower alkoxycarbonyl group, an aliphatic or aromatic acyl group, methanesulfonyloxy group or group ##STR2## and n is 0 or an integer of 1 to 5, said Xs being the same or different when n is an integer of 2 to 5; and Y denotes a halogen atom, a lower alkyl group, nitro group, phenyl group, a lower alkoxy group or trifluoromethyl group and m is in integer of 1 to 3, said Ys being the same or different when m is 2 or 3.
提供吡唑衍生物、其制备方法、含有该衍生物的选择性除草剂组合物以及使用该衍生物。具有选择性除草活性的吡唑衍生物由以下式I表示:##STR1## 其中,A表示直链或支链低碳烷基或低碳基亚烯基;X表示卤素原子、硝基、低碳基、低卤代烷基、低碳氧基、低卤代氧基、低碳烯基、苯基、氰基、苯氧基、低碳氧羰基、脂肪族或芳香族酰基、甲磺氧基或基团##STR2## n为0或1到5的整数,当n为2到5的整数时,所述Xs相同时或不同时;Y表示卤素原子、低碳基、硝基、苯基、低碳氧基或三氟甲基基团,m为1到3的整数,当m为2或3时,所述Ys相同时或不同时。