申请人:Hoffmann-La Roche Inc.
公开号:US04812164A1
公开(公告)日:1989-03-14
The invention is concerned with novel C.sub.1-4 -alkyl, C.sub.2-4 -alkenyl and C.sub.3 or 4 -alkynyl enol ethers of 3-aryluracils of the formula ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5 and X are as defined in the specification, their manufacture, weed control compositions which contain such enol ethers as the active substance and the use of the active substances or compositions for the control of weeds. The invention is also concerned with certain novel intermediates, some of which possess herbicidal activity, and with weed control compositions containing such active substances.
这项发明涉及新颖的3-芳基尿嘧啶的C.sub.1-4-烷基,C.sub.2-4-烯基和C.sub.3或4-炔基烯醇醚,其化学式如下所示:其中R.sup.1,R.sup.2,R.sup.3,R.sup.4,R.sup.5和X如规范中定义,它们的制造,含有这种烯醇醚作为活性物质的除草剂组合物,以及利用这些活性物质或组合物来控制杂草。该发明还涉及某些新颖的中间体,其中一些具有除草活性,并且含有这种活性物质的除草剂组合物。