申请人:Mitsubishi Chemical Corporation
公开号:US05977025A1
公开(公告)日:1999-11-02
This invention provides 1,3-oxazin-4-one derivatives represented by following general formula (I): ##STR1## in which R.sup.1 represents a phenyl group which may be substituted; R.sup.2 represents a hydrogen atom or a lower alkyl group; R.sup.3 represents a hydrogen atom, a lower alkyl group, an aralkyl group or a phenyl group which may be substituted; R.sup.4 and R.sup.5 each independently represent a lower alkyl group; and W represents an oxygen atom or a group represented by the formula --N(R.sup.6)-- in which R.sup.6 represents a hydrogen atom, a lower alkyl group, a lower alkenyl group or a lower alkynyl group. There are also provided herbicidal compositions containing the derivatives and intermediates for preparing them. The compounds according to the present invention exhibit strong herbicidal activities and thus they are useful as active ingredients of agricultural chemicals.
本发明提供了由以下一般式(I)表示的1,3-噁唑烷-4-酮衍生物:##STR1## 其中R.sup.1代表可能被取代的苯基;R.sup.2代表氢原子或低碳基;R.sup.3代表氢原子、低碳基、芳基烷基或可能被取代的苯基;R.sup.4和R.sup.5各自独立地代表低碳基;W代表氧原子或由公式--N(R.sup.6)--所表示的基团,其中R.sup.6代表氢原子、低碳基、低烯基基团或低炔基基团。还提供了含有这些衍生物的除草剂组合物和制备它们的中间体。根据本发明的化合物表现出强烈的除草活性,因此它们是农药活性成分的有用来源。