Quinoxalinyloxy phenoxy proprionic acid derivatives as selective
申请人:ICI Australia Limited
公开号:US04655819A1
公开(公告)日:1987-04-07
The invention concerns novel compounds of the formula I ##STR1## wherein: D and U are independently chosen from halogen, methyl and halomethyl; G is chosen from hydroxy, alkoxy, alkenyloxy, alkynyloxy, alkylthio, alkenylthio, alkynylthio, cycloalkoxy and the group OM wherein M is an alkali metal or alkaline earth metal ion; and k and l are independently chosen from 0 and 1. The compounds are herbicides and in further embodiments the invention provides processes for the preparation of compounds of formula I, intermediates useful in the preparation of compounds of formula I, herbicidal compositions containing as active ingredient a compound of formula I, and processes for severely damaging or killing unwanted plants by applying to the plants or to the growth medium of the plants and effective amount of a compound of formula I.
Process for the synthesis of phenoxyalkane derivatives
申请人:ICI Australia Limited
公开号:US04837355A1
公开(公告)日:1989-06-06
The invention concerns a process for the synthesis of a compound of formula I ##STR1## wherein: U and V may be chosen from a range of substituents including hydrogen, halogen, alkyl and alkoxy; R.sup.1 and R.sup.2 may be chosen from a range of substituents including hydrogen and alkyl; n is 0, 1 or 2; and W may be chosen from a range of substitutents including the group ##STR2## which may be a free carboxylic acid or derivative thereof; the process comprising reacting a sulfate ester of formula II, wherein Q is a cation, with a compound of formula III, wherein L is a leaving group ##STR3## and hydrolyzing the sulfate ester formed. Preferably the sulfate ester of formula II is prepared by the oxidation of a phenol of formula IV with a persulfate. ##STR4##
1,2,4-Benzotriazinyloxyphenoxyalkane carboxylic-acid derivatives, processes for their preparation, their use as herbicides, and their preparation
申请人:ICI AUSTRALIA LIMITED
公开号:EP0024932A2
公开(公告)日:1981-03-11
The invention concerns novel compounds of the formula I
The compounds are herbicides and in further embodiments the invention provides processesforthe preparation of compounds of formula I, intermediates useful in the preparation of compounds of formula I, herbicidal compositions containing as active ingredient a compound of formula 1, and processes for severely damaging or killing unwanted plants by applying to the plants or to the growth medium of the plants an effective amount of a compound of formula I.
本发明涉及式 I 的新型化合物
这些化合物是除草剂,在进一步的实施方案中,本发明提供了制备式 I 化合物的工艺、用于制备式 I 化合物的中间体、含有作为活性成分的式 1 化合物的除草组合物,以及通过向植物或植物的生长介质施用有效量的式 I 化合物来严重损害或杀死不需要的植物的工艺。
SERBAN, A.;WATSON, K. G.;FARQUHARSON, G. J.
作者:SERBAN, A.、WATSON, K. G.、FARQUHARSON, G. J.
DOI:——
日期:——
2-(2-halo-4-(6-haloquinoxalin-2-yloxy)phenoxy)propionates, process for their synthesis, herbicidal compositions containing them and their use as herbicides