发明名称 |
NEUE PHENOXY-PHENOXY-ALKANCARBONSAEUREDERIVATE |
摘要 |
The herbicide contains, as active substance, novel 3-phenoxy- alpha -phenoxyalkanecarboxylic acid derivatives of the formula I <IMAGE> in which the substituents R1, R2, R3, R4 and R5 have the meanings defined in Patent Claim 1. It is suitable for the selective control of weeds, especially dicotyledons in monocotyledonous crops, such as cereals, maize and rice. It has a pre-emergence action, but should advantageously be used post-emergence. The active substances are prepared in a known manner by reacting a trifluoromethylhalobenzene with a 4-hydroxy- alpha -phenoxyalkanecarboxylic acid derivative or by reacting a 3-hydroxy-diphenyl ether with an alpha -halocarboxylic acid derivative. |
申请公布号 |
DE2732442(A1) |
申请公布日期 |
1978.01.26 |
申请号 |
DE19772732442 |
申请日期 |
1977.07.18 |
申请人 |
CIBA-GEIGY AG |
发明人 |
ROHR,OTTO,DR.;PISSIOTAS,GEORG,DR.;BOEHNER,BEAT,DR. |
分类号 |
C07C69/712;A01N37/38;A01N39/02;A01N39/04;A01P13/02;C07C51/00;C07C59/125;C07C59/68;C07C59/70;C07C67/00;C07C69/96;C07C201/00;C07C205/38;C07C205/43;C07C231/00;C07C231/12;C07C233/00;C07C233/01;C07C235/20;C07C239/00;C07C251/64;C07C253/00;C07C255/54;C07C313/00;C07C323/20;C07C325/00;C07C327/22 |
主分类号 |
C07C69/712 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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