申请人:Ciba-Geigy Corporation
公开号:US05266554A1
公开(公告)日:1993-11-30
The invention relates to novel compounds of the formula ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.5 have the meanings given in the description, to enol ethers and salts thereof and their preparation, to weed control compositions that comprise such compounds as active ingredients, and to the use of the compounds or compositions to control weeds. The invention relates also to certain novel starting materials and to the preparation thereof.
本发明涉及一种新型化合物,其化学式为##STR1##其中R.sub.1,R.sub.2,R.sub.3,R.sub.4和R.sub.5的含义如描述中给出的含义,以及其烯醚和盐的制备方法,包括这种化合物作为活性成分的除草组合物,以及使用这些化合物或组合物来控制杂草。本发明还涉及某些新型起始材料及其制备方法。