申请人:Gulf Oil Corporation
公开号:US04243407A1
公开(公告)日:1981-01-06
A class of amides disclosed to be useful as selective pre-emergent and post-emergent herbicides are those having the general structural formula ##STR1## in which R.sup.1 is hydrogen or methyl, R.sup.2 is ethyl, isopropyl, cyclopropyl, tert.butyl, methylamino, dimethylamino, ethylamino or methoxymethylamino, R.sup.3 is phenyl, 4-chlorophenyl, 3,4-dichlorophenyl, 4-methylphenyl or 4-methoxyphenyl, R.sup.4 is hydrogen or C.sub.1 to C.sub.3 lower alkyl, and R.sup.5 is hydrogen or methyl, with the further stipulation that either, but not both R.sup.4 and R.sup.5 may be hydrogen.
一类已披露的酰胺化合物,可用作选择性的前草和后草除草剂,其具有以下一般结构式:##STR1## 其中R.sup.1为氢或甲基,R.sup.2为乙基、异丙基、环丙基、叔丁基、甲氨基、二甲氨基、乙基氨基或甲氧甲基氨基,R.sup.3为苯基、4-氯苯基、3,4-二氯苯基、4-甲基苯基或4-甲氧基苯基,R.sup.4为氢或C.sub.1至C.sub.3的低碳基,R.sup.5为氢或甲基,但必须进一步规定,R.sup.4和R.sup.5中的任意一个,但不是两者都为氢。