申请人:Nippon Kayaku Kabushiki Kaisha
公开号:US04666507A1
公开(公告)日:1987-05-19
Disclosed is a compound exhibiting herbicidal activity of the formula: ##STR1## wherein R.sup.1 is hydrogen, halogen or methyl, R.sup.2 is hydrogen, halogen or lower alkyl, R.sup.3 is lower alkyl which may be substituted by halogen or methylsulfonyl, benzyl or phenyl which may be substituted by halogen or nitro, R.sup.4 is hydrogen; lower alkyl which may be substituted by carboxy or lower alkoxycarbonyl; lower alkenyl; lower alkynyl; methylsulfonyl or benzyl which may be substituted by halogen, X is hydrogen, halogen or C.sub.1 -C.sub.2 -alkyl, Y is C.sub.1 -C.sub.2 -alkyl, X may make --(CH.sub.2).sub.3 -- or --(CH.sub.2).sub.4 -- together with Y, W is halogen.
揭示了一种具有除草活性的化合物,其化学式为:##STR1## 其中R.sup.1为氢、卤素或甲基,R.sup.2为氢、卤素或较低的烷基,R.sup.3为较低的烷基,可能被卤素或甲磺酰基取代,苄基或苯基,可能被卤素或硝基取代,R.sup.4为氢;可能被羧基或较低的烷氧羰基取代的较低烷基;较低烯基;较低炔基;甲磺酰基或可能被卤素取代的苄基,X为氢、卤素或C.sub.1-C.sub.2-烷基,Y为C.sub.1-C.sub.2-烷基,X可以与Y一起形成--(CH.sub.2).sub.3--或--(CH.sub.2).sub.4--,W为卤素。