N-substituted-3,4,5,6-tetrahydrophthalamic acid derivatives of the formula:
wherein R1 is hydrogen or halogen; R2 is halogen; R3 is hydrogen or C1-C4 alkyl; R4 is hydrogen or C1-CB-alkyl which may be substituted by halogen or C1-C4 alkoxy; and Z is hydroxy, C1-CB-primary or secondary alkylamino, C2-C5-alkenyl amino, C3-C7-cycloalkylamino, furfurylamino, benzylamino, morpholino which may be substituted by methyl, or C2-C4-alkylamino which may be substituted by phenyl, C1 or C2-alkylamino, C1-C4-alkoxy, C1-C4-alkylthio or cyano; and alkali metal salts thereof: ar2 usefut as herbicides.
式中的 N-取代-3,4,5,6-四氢邻苯二甲酰胺衍
生物:
其中 R1 是氢或卤素;R2 是卤素;R3 是氢或 C1-C4 烷基;R4 是氢或可被卤素或 C1-C4 烷氧基取代的 C1-CB 烷基;Z是羟基、C1-CB-主或仲烷基
氨基、C2-C5-烯基
氨基、C3-C7-环烷基
氨基、糠
氨基、苄基
氨基、可被甲基取代的吗啉基、或可被苯基取代的C2-C4-烷基
氨基、C1-C4-烷氧基、C1-C4-烷
硫基或
氰基;以及它们的碱
金属盐:AR2 用作
除草剂。