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2. 发明公开

EP0126294A1 New diphenyl ethers having herbicidal activity 失效
标题翻译：二苯醚具有除草活性。
公开(公告)号：EP0126294A1
公开(公告)日：1984-11-28
申请号：EP84104288.0
申请日：1984-04-16
申请人： DUPHAR INTERNATIONAL RESEARCH B.V
发明人： Paerels, Gerard B. , Raven, Cornelis W.
IPC分类号： C07C101/16 , C07C147/10 , C07F9/40 , C07C149/18
CPC分类号： C07F9/4075 , A01N37/44 , A01N41/10 , A01N57/22 , C07F9/4006
摘要： The invention relates to new diphenyl ethers of the general formula
wherein

X is a trifluoromethyl group or an alkylsulphonyl group having 1-4 carbon atoms;
R is an alkylene or alkylidene group having 1-12 carbon atoms; and
A is a bis(alkoxyethoxy)phosphinyl group having 6-12 carbon atoms, a bis(alkoxyethoxyethoxy)phosphinyl group having 10-16 carbon atoms, a carboxy group, an alkenyloxycarbonyl group having 3-6 carbon atoms, an unsubstituted aminocarbonyl group, an N-alkylaminocarbonyl group having 2-5 carbon atoms, the alkyl group of which is substituted with a dialkylamino group having 2-4 carbon atoms, a cyano group, or an alkyloxycarbonyl group having 2-5 carbon atoms, the alkyl group of which may be substituted with an alkoxy, alkylthio or alkylsulphonyl group having 1-4 carbon atoms, with an alkoxyethoxy group having 3-6 carbon atoms, with a dialkylamino group having 2-4 carbon atoms, or with a hydroxyalkyldithio group having 2-4 carbon atoms; with the provisos, that

a) when X is a trifluoromethyl group and R is an alkylene or alkylidene group having 1-6 carbon atoms, then A is a bis(alkoxyethoxy)phosphinyl group, a bis(atkoxyethoxy- ethoxy)phosphinyl group, an N-alkylaminocarbonyl group, the alkyl group of which is substituted with a dialkylamino group, or an alkyloxycarbonyl group, the alkyl group of which is substituted with a dialkylamino group or a hydroxyalkyldithio group;
(b) when X is a trifluoromethyl group and R is an alkylene or alkylidene group having 8-12 carbon atoms, then A is a carboxy group, an unsubstituted alkoxycarbonyl group, an aminocarbonyl group, or a cyano group; and
(c) when X is an alkylsulphonyl group, then R is an alkylene or alkylidene group having 1-12 carbon atoms, and A is a carboxy group, an alkenyloxycarbonyl group, an unsubstituted or substituted alkyloxycarbonyl group, an aminocarbonyl group, or a cyano group.

The compounds have a herbicidal activity. After having been processed to compositions, the compounds may be used for controlling undesired plants in agricultural and herbicultural crop in a dosage from 0.01 to 5 kg of active substance per hectare.

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