申请人:Ciba-Geigy Corporation
公开号:US04824476A1
公开(公告)日:1989-04-25
Novel derivatives of N-phenyl-3,4,5,6-tetrahydrophthalimide of the formula I given below have good pre- and post-emergence, selective-herbicidal properties, and they furthermore regulate and inhibit plant growth. The compounds correspond to the formula I ##STR1## wherein R is C.sub.1 -C.sub.3 -alkyl, n is zero, one or two, R.sub.1 and R.sub.2 independently of one another are each hydrogen or halogen, R.sub.3 l is hydrogen, cyano, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -haloalkyl or a radical --CH.sub.2 YR.sub.4, R.sub.4 is C.sub.1 -C.sub.4 -alkyl, C.sub.3 -C.sub.4 -alkenyl, C.sub.3 -C.sub.4 -alkynyl, C.sub.3 -C.sub.7 -cycloalkyl, benzyl or phenyl, Z is oxygen, or an oxime radical .dbd.N--O--Q, and the grouping --C(R.sub.3).dbd.Z can also be a ketal radical, and Q is hydrogen, a C.sub.1 -C.sub.10 -alkyl radical, a C.sub.3 -C.sub.8 -alkenyl radical or a C.sub.3 -C.sub.8 -alkynyl radical, a C.sub.3 -C.sub.7 -cycloalkyl or C.sub.3 -C.sub.7 -cycloalkenyl radical, a phenyl-C.sub.1 -C.sub.4 -alkyl group, a carbamoyl radical, a carbonic or thiocarbonic acid radical, a C.sub.1 -C.sub.4 -alkylsulfonyl radical, a metal ion or a quaternized ammonium ion.
以下给出的N-苯基-3,4,5,6-四氢酞酰亚胺的新衍生物具有良好的前、后出苗、选择性除草性质,并且能够调节和抑制植物生长。这些化合物对应于式I:
其中,R为C.sub.1-C.sub.3烷基,n为零、一或二,R.sub.1和R.sub.2独立地为氢或卤素,R.sub.3为氢、氰基、C.sub.1-C.sub.4烷基、C.sub.1-C.sub.4卤代烷基或者是一个基团--CH.sub.2YR.sub.4,R.sub.4为C.sub.1-C.sub.4烷基、C.sub.3-C.sub.4烯基、C.sub.3-C.sub.4炔基、C.sub.3-C.sub.7环烷基、苄基或苯基,Z为氧或者是一个肟基.dbd.N--O--Q,而且--C(R.sub.3).dbd.Z团可以是一个缩酮基团,Q为氢、C.sub.1-C.sub.10烷基、C.sub.3-C.sub.8烯基、C.sub.3-C.sub.8炔基、C.sub.3-C.sub.7环烷基或C.sub.3-C.sub.7环烯基、苯基-C.sub.1-C.sub.4烷基、氨基甲酰基、碳酸基或硫代碳酸基、C.sub.1-C.sub.4烷基磺酰基、金属离子或季铵离子。