申请人:Sumitomo Chemical Company, Limited
公开号:US04249938A1
公开(公告)日:1981-02-10
An N'-phenyl-N-methyl-urea derivative of the formula: ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 are each hydrogen, lower alkyl, lower alkoxy, lower alkylthio, halogen or trifluoromethyl, R.sup.4 is hydrogen or lower alkyl, A is methyl or methoxy, X is oxygen or sulfur, Y is hydrogen or halogen, Z is a straight or branched alkylene chain having not more than 8 carbon atoms which may have no less than one atom of oxygen and/or sulfur inside and/or at the end of the alkylene chain and n is an integer of 1 to 3, which shows a pronounced herbicidal activity against a wide variety of weeds in the cultivation of crop plants without any material toxicity to mammals or fish or any chemical injury to said crop plants.
一种N'-苯基-N-甲基脲衍生物,化学式如下:其中R.sup.1、R.sup.2和R.sup.3分别为氢、低碳烷基、低碳氧烷基、低碳硫烷基、卤素或三氟甲基,R.sup.4为氢或低碳烷基,A为甲基或甲氧基,X为氧或硫,Y为氢或卤素,Z为直链或支链烷基链,碳原子数不超过8个,在烷基链内和/或末端可能有至少一个氧和/或硫原子,n为1到3的整数。该化合物对各种杂草具有显著的除草活性,在种植作物时不对哺乳动物或鱼类产生有害毒性,也不对作物植物造成化学伤害。