申请人:Sankyo Company Limited
公开号:US04063925A1
公开(公告)日:1977-12-20
Herbicidal compositions containing as an active ingredient one or more of the pyrazole compounds having the formula ##STR1## (wherein R.sub.1 represents hydrogen atom or a lower alkyl group, R.sub.2 represents a lower alkyl group or a lower alkenyl group, X represents a halogen atom, nitro group, a lower alkyl group, a halogenated lower alkyl group, a lower alkoxy group, a lower alkanesulfonyl group, cyano group, a lower alkylthio group or an aliphatic acyl group and n is an integer of 1 to 4 and when n is 2, 3 or 4, X's may be the same or different), salts thereof and organic acid esters thereof, as well as new pyrazole compounds having herbicidal activities and the formula ##STR2## (wherein R.sub.1 represents hydrogen atom or a lower alkyl group, R.sub.2 represents a lower alkyl group or a lower alkenyl group Z represents a halogen atom, nitro group, a lower alkyl group, a halogenated lower alkyl group, a lower alkoxy group, a lower alkanesulfonyl group, cyano group, a lower alkylthio group, an aliphatic acyl group or benzoyl group, n is an integer of 1 to 4, when n is 2,3 or 4, Z's may be the same or different and Y represents oxygen atom or sulfur atom; provided that those wherein R.sub.1 and R.sub.2 are methyl groups, Z is chlorine atom at 2-position, n is 1 and Y is oxygen atom and wherein R.sub.1 and R.sub.2 are methyl groups, Z is nitro group at 4-position, n is 1 and Y is oxygen atom are excluded. These pyrazole compounds are prepared in a conventional manner.
含有一种或多种具有以下结构式的吡唑烷化合物的除草剂组合物:(其中R.sub.1代表氢原子或较低的烷基基团,R.sub.2代表较低的烷基基团或较低的烯基基团,X代表卤素原子、硝基基团、较低的烷基基团、卤代较低的烷基基团、较低的烷氧基团、较低的烷烷磺基团、氰基、较低的烷硫基团或脂肪族酰基,n为1至4的整数,当n为2、3或4时,X可能相同或不同),以及它们的盐和有机酸酯,以及具有除草活性的新的吡唑烷化合物和结构式:(其中R.sub.1代表氢原子或较低的烷基基团,R.sub.2代表较低的烷基基团或较低的烯基基团,Z代表卤素原子、硝基基团、较低的烷基基团、卤代较低的烷基基团、较低的烷氧基团、较低的烷磺基团、氰基、较低的烷硫基团、脂肪族酰基或苯甲酰基,n为1至4的整数,当n为2、3或4时,Z可能相同或不同,Y代表氧原子或硫原子;但是其中R.sub.1和R.sub.2为甲基基团,Z为2-位置的氯原子,n为1且Y为氧原子以及其中R.sub.1和R.sub.2为甲基基团,Z为4-位置的硝基基团,n为1且Y为氧原子的情况除外。这些吡唑烷化合物是以传统方法制备的。