Compounds represented by general formula (I), herbicides or selective herbicides for paddy field containing said compounds as active ingredients, method of controlling growth of undesirable plants by applying the herbicides on places where control is desired. ##STR1## wherein A represents a --S(O)nR.sup.1 in which n is 0 or 2 and R.sup.1 represents a (substituted) lower alkyl; a cycloalkyl; a (substituted) benzyl; a (substituted) phenyl; or a --OR.sup.2 in which R.sup.2 represents a (substituted) phenyl; B represents a halogen, a nitro, a lower alkyl, or a lower alkylsulfonyl; D represents a hydrogen, a lower alkyl, a lower alkoxy, a lower alkoxymethyl, or a lower alkoxycarbonyl; E represents a halogen, a (substituted) lower alkoxy, a lower alkylthio, a (substituted) lower alkylsulfonyl, or a lower alkylsulfonyloxy. The herbicides of the present invention can prevent a wide variety of noxious weeds and further selectively prevent weeds on paddy field with considerably reduced phytotoxicities on rice plant.
通用公式(I)表示的化合物,含有该化合物作为活性成分的稻田
除草剂或选择性
除草剂,通过在需要控制的地方施用该
除草剂来控制不良植物生长的方法。其中A代表--S(O)nR.sup.1,其中n为0或2,R.sup.1代表(取代的)较低烷基;环烷基;(取代的)苄基;(取代的)苯基;或--OR.sup.2,其中R.sup.2代表(取代的)苯基;B代表卤素,硝基,较低烷基或较低烷基磺酰基;D代表氢,较低烷基,较低烷氧基,较低烷氧甲基或较低烷氧羰基;E代表卤素,(取代的)较低烷氧基,较低烷
硫基,(取代的)较低烷基磺酰基或较低烷基磺酰氧基。本发明的
除草剂可以预防各种有害杂草,并且可以在稻田上选择性地预防杂草,对
水稻植株的植物毒性大大降低。