申请人:Ciba-Geigy Corporation
公开号:US04618363A1
公开(公告)日:1986-10-21
N-Phenylsulfonyl-N'-pyrimidinylureas and -N'-triazinylureas of the general formula ##STR1## and the salts of these compounds with amines, alkali metal bases and alkaline earth metal bases or with quaternary ammonium bases, have good selective herbicidal and plant growth regulating properties when applied pre- and postemergence. In the formula R.sub.1 is hydrogen, halogen, nitro, C.sub.1 -C.sub.4 haloalkyl, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, C.sub.2 -C.sub.5 alkenyl or C.sub.1 -C.sub.4 alkoxycarbonyl, R.sub.2 is C.sub.1 -C.sub.3 alkyl or C.sub.1 -C.sub.3 alkoxy, each unsubstituted or substituted by 1 to 3 halogen atoms, R.sub.3 is halogen, hydrogen, --NR.sub.4 R.sub.5, C.sub.1 -C.sub.3 alkyl, unsubstituted or substituted by 1 to 3 halogen atoms or C.sub.1 -C.sub.4 alkoxy, or is C.sub.1 -C.sub.3 alkoxy, unsubstituted or substituted by methoxy, ethoxy, or 1 to 3 halogen atoms, R.sub.4 is hydrogen or methyl, R.sub.5 is hydrogen, C.sub.1 -C.sub.2 alkyl or methoxy, A is C.sub.1 -C.sub.4 alkylene or C.sub.2 -C.sub.4 alkenylene, each unsubstituted or substituted by C.sub.1 -C.sub.4 alkyl, m is 0 or 1, E is nitrogen or the methine group, X is oxygen, sulfur, --SO-- or --SO.sub.2 --, and Q is hydroxyl, cyano or radicals selected from the group consisting of 5- or 6-membered heterocyclic rings and fused homologues, amines, acetals, esters, ketones, phenyls, sulfonic acid and carboxylic acids, which radicals may be further substituted and have functional structures.
通式为##STR1##的N-苯磺酰-N'-嘧啶基脲和-N'-三嗪基脲,以及这些化合物与胺、碱金属碱和碱土金属碱或季铵碱的盐,在施用前和施用后具有良好的选择性除草和植物生长调节性能。 在公式中,R.sub.1是氢、卤素、硝基、C.sub.1-C.sub.4卤代烷基、C.sub.1-C.sub.4烷基、C.sub.1-C.sub.4烷氧基、C.sub.2-C.sub.5烯基或C.sub.1-C.sub.4烷氧羰基,R.sub.2是C.sub.1-C.sub.3烷基或C.sub.1-C.sub.3烷氧基,每个未取代或取代1至3个卤素原子,R.sub.3是卤素、氢、-NR.sub.4R.sub.5、C.sub.1-C.sub.3烷基,未取代或取代1至3个卤素原子或C.sub.1-C.sub.4烷氧基,或是C.sub.1-C.sub.3烷氧基,未取代或取代甲氧基、乙氧基或1至3个卤素原子,R.sub.4是氢或甲基,R.sub.5是氢、C.sub.1-C.sub.2烷基或甲氧基,A是C.sub.1-C.sub.4亚烷基或C.sub.2-C.sub.4烯基,每个未取代或取代C.sub.1-C.sub.4烷基,m为0或1,E是氮或亚甲基基,X是氧、硫、-SO-或-SO.sub.2-,Q是羟基、氰基或从5-或6-成员杂环环和融合同系物、胺、缩醛、酯、酮、苯基、磺酸和羧酸中选择的基团,这些基团可能进一步取代并具有功能结构。