申请人:Duphar International Research B.V.
公开号:US04927452A1
公开(公告)日:1990-05-22
The invention relates to a herbicidally active compound of the general ##STR1## wherein R.sub.1, R.sub.2 R.sub.3 and R.sub.4 are equal or different and represent hydrogen atoms, alkyl groups having 1-6 carbon atoms, cycloalkyl groups having 3-6 carbon atoms or alkoxycarbonyl groups having 2-5 carbon atoms; R.sub.5 is a hydrogen atom, an alkyl group or haloalkyl group having 1-8 carbon atoms, a substituted or non-substituted phenyl group, a substituted or non-substituted heterocyclic group, or an alkenyl, alkynyl or alkoxycarbonyl group having 2-5 carbon atoms; and wherein two of the groups R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.5 together may form a straight or branched alkylene group having 3-5 carbon atoms; Ar is a phenyl group, a phenyl (C.sub.1 -C.sub.4)alkyl group or a heteroaryl group; R.sub.6 is a hydrogen atom or substitutent to Ar, which substituent, in case Ar is a phenyl or phenylalkyl group, is attached to the phenyl group in the ortho position with respect to the sulphonyl or sulphonylalkyl group, and which substituent is selected from the following atoms and groups: a halogen atom; a nitro group; an alkoxycarbonyl group that has 2-8 carbon atoms and is unsubstituted or substituted with one or more hydroxy or C.sub.1 -C.sub.4 alkoxy groups; and an alkyl, hydroxyalkyl, haloalkyl, alkoxy, haloalkoxy, alkylthio, haloalkylthio, alkylsulphonyl and haloalkylsulphonyl group having 1-6 carbon atoms; and R.sub.7 represent a hydrogen atom or one or two halogen atoms or C.sub.1 -C.sub.4 alkyl groups.
本发明涉及一种具有除草活性的化合物,其一般式为##STR1##其中R.sub.1、R.sub.2、R.sub.3和R.sub.4相等或不同,表示氢原子、具有1-6个碳原子的烷基、具有3-6个碳原子的环烷基或具有2-5个碳原子的烷氧羰基基团;R.sub.5表示氢原子、具有1-8个碳原子的烷基或卤代烷基、取代或未取代的苯基、取代或未取代的杂环基或具有2-5个碳原子的烯基、炔基或烷氧羰基基团;其中R.sub.1、R.sub.2、R.sub.3、R.sub.4和R.sub.5中的两个基团可以共同形成一个直链或分支链的3-5个碳原子的烷基基团;Ar表示苯基、苯基(C.sub.1-C.sub.4)烷基基团或杂环基;R.sub.6表示与Ar相连的氢原子或取代基,该取代基在Ar为苯基或苯基烷基基团时,与磺酰基或磺酰基烷基基团相对应的苯基在邻位上连接,所述取代基选自以下原子和基团:卤原子;硝基基团;具有2-8个碳原子且未取代或取代有一个或多个羟基或C.sub.1-C.sub.4烷氧基团的烷氧羰基基团;以及具有1-6个碳原子的烷基、羟基烷基、卤代烷基、烷氧基、卤代烷氧基、烷硫基、卤代烷硫基、烷基磺酰基和卤代烷基磺酰基基团;R.sub.7表示氢原子或1-2个卤原子或C.sub.1-C.sub.4烷基基团。