Novel substituted nitrodiphenyl ethers, herbicidal compositions containing them, processes for the preparation thereof and the use thereof for combating weeds
申请人:ROHM AND HAAS COMPANY
公开号:EP0020052A1
公开(公告)日:1980-12-10
Novel substituted nitrodiphenyl ethers, herbicidal compositions containing them, processes for the preparation thereof and the use thereof for combating weeds.
Novel compounds are provided which exhibit activity as herbicides for combating weeds. The novel compounds have the formula:
wherein
X is hydrogen, halo, trihalomethyl, alkyl, cyano or nitro;
X' is hydrogen, halo or trihalomethyl;
X2 is trihalomethyl or halo;
Y is 0, NH, NR1 or S;
R1 and R2 are the same or different and are selected from hydrogen, (C1-C4) alkyl, phenyl and phenyl (C1-C4) alkyl;
n is an integer of from 1 to 5; and
Z is carboxy, amino, monoalkylamino, or dialkylamino.
Also provided are agronomically acceptable salts, esters and amides of a compound of Formula I when Z is carboxy.
新型取代的硝基二苯醚、含有它们的除草组合物、其制备工艺及其用于除草的用途。
本发明提供了具有除草活性的新型化合物。这些新型化合物的化学式如下
式中
X 是氢、卤素、三卤甲基、烷基、氰基或硝基;
X' 是氢、卤素或三卤甲基;
X2 是三卤甲基或卤素;
Y 是 0、NH、NR1 或 S;
R1 和 R2 相同或不同,选自氢、(C1-C4)烷基、苯基和苯基(C1-C4)烷基;
n 是 1 至 5 的整数;以及
Z 是羧基、氨基、单烷基氨基或二烷基氨基。
当 Z 为羧基时,还提供农艺学上可接受的式 I 化合物的盐、酯和酰胺。