申请人:Ciba-Geigy Corporation
公开号:US05221315A1
公开(公告)日:1993-06-22
N-Pyridinesulfonyl-N'-pyrimidinyl- and -triazinylureas of the formula I ##STR1## in which R.sub.1 and R.sub.2 independently of one another are hydrogen, C.sub.1 -C.sub.8 alkyl or C.sub.3 -C.sub.8 cycloalkyl; C.sub.2 -C.sub.8 alkyl or C.sub.3 -C.sub.8 cycloalkyl substituted by halogen; C.sub.1 -C.sub.8 alkyl or C.sub.3 -C.sub.8 cycloalkyl substituted by --NR.sub.5 R.sub.6, C.sub.1 -C.sub.4 alkoxy or C.sub.1 -C.sub.4 alkyl-S(O).sub.n --; C.sub.1 -C.sub.4 alkyl or C.sub.3 -C.sub.6 cycloalkyl substituted by C.sub.2 -C.sub.4 alkenyl, C.sub.5 -C.sub.6 cycloalkenyl, C.sub.2 -C.sub.6 alkynyl or C.sub.4 -C.sub.8 alkadienyl; or C.sub.2 -C.sub.4 alkenyl, C.sub.5 -C.sub.6 cycloalkenyl and C.sub.4 -C.sub.8 alkadienyl substituted by halogen; or R.sub.1 and R.sub.2 together are a 4-5-membered C.sub.4 -C.sub.10 alkylene chain which can be interrupted by oxygen, sulfur or N--R.sub.7 ; R.sub.3 is hydrogen, halogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy or C.sub.1 - C.sub.4 alkylthio; C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy or C.sub.1 -C.sub.4 alkylthio substituted by halogen; R.sub.4, R.sub.5, R.sub.6 and R.sub.7 independently of one another are hydrogen or C.sub.1 -C.sub.4 alkyl; n is 0, 1 or 2; X is C.sub.1 -C.sub.3 alkyl, or C.sub.1 -C.sub.3 alkyl which is substituted by 1 to 3 halogens; C.sub.1 -C.sub.3 alkoxy, or C.sub.1 -C.sub.3 alkoxy which is substituted by 1 to 3 halogens; Y is halogen, C.sub.1 -C.sub.3 alkyl or C.sub.1 -C.sub.3 alkyl which is substituted by 1 to 3 halogens; C.sub.1 -C.sub.3 alkoxy, or C.sub.1 -C.sub.3 alkoxy which is substituted by 1 to 3 halogens; cyclopropyl, methylamino or dimethylamino; and E is nitrogen or the methine group, and the salts of these compounds with amines, alkali metal bases or alkaline earth metal bases or with quaternary ammonium bases have good selective herbicidal and growth-regulating properties when used pre- and post-emergence.
化合物I的N-吡啶磺酰-N'-嘧啶基和-三嗪基脲的通式为:##STR1## 其中R.sub.1和R.sub.2分别独立地为氢、C.sub.1-C.sub.8烷基或C.sub.3-C.sub.8环烷基;被卤素取代的C.sub.2-C.sub.8烷基或C.sub.3-C.sub.8环烷基;被--NR.sub.5 R.sub.6、C.sub.1-C.sub.4烷氧基或C.sub.1-C.sub.4烷基-S(O).sub.n取代的C.sub.1-C.sub.8烷基或C.sub.3-C.sub.8环烷基;被C.sub.2-C.sub.4烯基、C.sub.5-C.sub.6环烯基、C.sub.2-C.sub.6炔基或C.sub.4-C.sub.8二烯基取代的C.sub.1-C.sub.4烷基或C.sub.3-C.sub.6环烷基;或被卤素取代的C.sub.2-C.sub.4烯基、C.sub.5-C.sub.6环烯基和C.sub.4-C.sub.8二烯基;或R.sub.1和R.sub.2一起是一个被氧、硫或N--R.sub.7中断的4-5元素的C.sub.4-C.sub.10烷基链;R.sub.3为氢、卤素、C.sub.1-C.sub.4烷基、C.sub.1-C.sub.4烷氧基或C.sub.1-C.sub.4烷基硫醚基;被卤素取代的C.sub.1-C.sub.4烷基、C.sub.1-C.sub.4烷氧基或C.sub.1-C.sub.4烷基硫醚基;R.sub.4、R.sub.5、R.sub.6和R.sub.7分别独立地为氢或C.sub.1-C.sub.4烷基;n为0、1或2;X为C.sub.1-C.sub.3烷基,或被1至3个卤素取代的C.sub.1-C.sub.3烷基;C.sub.1-C.sub.3烷氧基,或被1至3个卤素取代的C.sub.1-C.sub.3烷氧基;Y为卤素、C.sub.1-C.sub.3烷基或被1至3个卤素取代的C.sub.1-C.sub.3烷基;C.sub.1-C.sub.3烷氧基,或被1至3个卤素取代的C.sub.1-C.sub.3烷氧基;环丙基、甲基氨基或二甲基氨基;E为氮或甲基基团,这些化合物与胺、碱金属基或碱土金属基或季铵基的盐在预发芽和后发芽时具有良好的选择性除草和生长调节性能。