申请人:Schering Aktiengesellschaft
公开号:US04859230A1
公开(公告)日:1989-08-22
There are described new halocyclopropyl compounds of the general formula I ##STR1## in which R.sub.1, R.sub.2 and R.sub.3, independently of each other, are hydrogen or C.sub.1-4 -alkyl, X is hydrogen or halogen, Y is halogen, n is 0, 1, 2 or 3, U and V are hydrogen or halogen, and W is a heterocyclic group of formula ##STR2## in which T is halogen, C.sub.1-4 -alkyl, C.sub.1-4 -haloalkyl, CN or OR.sub.9 Q is CH or N, Z is O or S, R.sub.4, R.sub.5, R.sub.6, R.sub.7 and R.sub.8 are each a straight, branched or cyclic C.sub.1-7 -alkyl group optionally substituted by up to six halogen atoms, or R.sub.4 and R.sub.5, can also together form a 4 to 7 membered ring that is saturated or unsaturated and can contain further hetero atoms, such as O, S or N, and can optionally be substituted by one to three methyl groups or one to six halogen atoms, and R.sub.9 is hydrogen, C.sub.1-4 -alkyl or C.sub.1-4 -haloalkyl, processes for their preparation and their use as herbicide with high selectivity.
描述了一种新的卤代环丙基化合物,其一般式为I ##STR1## 其中R.sub.1,R.sub.2和R.sub.3独立地为氢或C.sub.1-4-烷基,X为氢或卤素,Y为卤素,n为0、1、2或3,U和V为氢或卤素,W为具有以下式子的杂环基团:##STR2## 其中T为卤素、C.sub.1-4-烷基、C.sub.1-4-卤代烷基、CN或OR.sub.9,Q为CH或N,Z为O或S,R.sub.4、R.sub.5、R.sub.6、R.sub.7和R.sub.8分别为直链、支链或环状的C.sub.1-7-烷基基团,可选地被多达六个卤素原子取代,或者R.sub.4和R.sub.5也可以共同形成一个饱和或不饱和的4到7成员环,可以含有进一步的杂原子,如O、S或N,并且可选地被一个到三个甲基基团或一个到六个卤素原子取代,R.sub.9为氢、C.sub.1-4-烷基或C.sub.1-4-卤代烷基,其制备方法以及它们作为具有高选择性的除草剂的用途。