申请人:Ciba-Geigy Corporation
公开号:US04476321A1
公开(公告)日:1984-10-09
N-Phenylsulfonyl-N'-pyrimidinyl- and triazinylureas of the general formula ##STR1## and the salts thereof with amines, alkali metal or alkaline earth metal bases or with quaternary ammonium bases, have good pre- and postemergence selective herbicidal and growth regulating properties. In the above formula A is a C.sub.1 -C.sub.6 haloalkyl radical, E is the methine group or nitrogen, X is oxygen, sulfur, a sulfinyl or sulfonyl bridge, Z is oxygen or sulfur, m is 1 or 2, R.sub.1 is hydrogen, halogen, C.sub.1 -C.sub.5 alkyl, C.sub.2 -C.sub.5 alkenyl or a radical --Y--R.sub.5, R.sub.2 is hydrogen, halogen, C.sub.1 -C.sub.5 alkyl, C.sub.2 -C.sub.5 alkenyl, C.sub.1 -C.sub.4 -haloalkyl, or a radical --Y--R.sub.5, --COOR.sub.6, --NO.sub.2 or --CO--NR.sub.7 --R.sub.8, R.sub.3 and R.sub.4, each independently of the other, are hydrogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, C.sub.1 -C.sub.4 alkylthio, C.sub.1 -C.sub.4 haloalkyl, halogen or alkoxyalkyl of at most 4 carbon atoms, R.sub.5 and R.sub.6, each independently of the other, are C.sub.1 -C.sub.5 alkyl, C.sub.2 -C.sub.5 alkenyl or C.sub.2 -C.sub.6 alkynyl, R.sub.7 and R.sub.8, each independently of the other, are hydrogen, C.sub.1 -C.sub.5 alkyl, C.sub.2 -C.sub.5 alkenyl or C.sub.2 -C.sub.6 alkynyl, and Y is oxygen, sulfur, a sulfinyl or sulfonyl bridge, with the proviso that m is 2 when at the same time A is --CHF.sub.2, --CF.sub.3, --CH.sub.2 --CF.sub.3, --CF.sub.2 --CHF.sub.2, --CF.sub.2 --CHFCL, --CF.sub.2 CHFBr or --CF.sub.2 --CHF--CF.sub.3 ; R.sub.3 is OCH.sub.3 or CH.sub.3 ; R.sub.4 is OCH.sub.3, --CH.sub.3, --OC.sub.2 H.sub.5, --CH.sub.2 --O--CH.sub.3 or --CH.sub.2 --CH.sub.2 --OCH.sub.3, and the phenyl nucleus is not substituted or is substituted in the 2-, 3-, 5- or 6-position to the sulfonyl group only by one further substituent selected from the group consisting of F, Cl, Br or --CH.sub.3.
通式为##STR1##的N-苯磺酰基-N'-嘧啶基和三嗪基脲及其与胺、碱金属或碱土金属基或季铵基的盐具有良好的前后除草和生长调节性能。在上述公式中,A是C.sub.1-C.sub.6卤代烷基,E是甲基基团或氮,X是氧、硫、亚磺基或磺基桥,Z是氧或硫,m为1或2,R.sub.1是氢、卤素、C.sub.1-C.sub.5烷基、C.sub.2-C.sub.5烯基或基团--Y--R.sub.5,R.sub.2是氢、卤素、C.sub.1-C.sub.5烷基、C.sub.2-C.sub.5烯基、C.sub.1-C.sub.4-卤代烷基或基团--Y--R.sub.5,--COOR.sub.6,--NO.sub.2或--CO--NR.sub.7--R.sub.8,R.sub.3和R.sub.4分别独立地为氢、C.sub.1-C.sub.4烷基、C.sub.1-C.sub.4烷氧基、C.sub.1-C.sub.4烷硫基、C.sub.1-C.sub.4卤代烷基、卤素或最多4个碳原子的烷氧基烷基,R.sub.5和R.sub.6分别独立地为C.sub.1-C.sub.5烷基、C.sub.2-C.sub.5烯基或C.sub.2-C.sub.6炔基,R.sub.7和R.sub.8分别独立地为氢、C.sub.1-C.sub.5烷基、C.sub.2-C.sub.5烯基或C.sub.2-C.sub.6炔基,Y是氧、硫、亚磺基或磺基桥,但m为2时,同时A为--CHF.sub.2、--CF.sub.3、--CH.sub.2--CF.sub.3、--CF.sub.2--CHF.sub.2、--CF.sub.2--CHFCl、--CF.sub.2CHFBr或--CF.sub.2--CHF--CF.sub.3;R.sub.3为OCH.sub.3或CH.sub.3;R.sub.4为OCH.sub.3、--CH.sub.3、--OC.sub.2H.sub.5、--CH.sub.2--O--CH.sub.3或--CH.sub.2--CH.sub.2--OCH.sub.3,苯环未取代或仅在2-, 3-, 5-或6-位置以苯磺酰基为唯一的取代基取代为F、Cl、Br或--CH.sub.3。