SUBSTITUEREDE NITRODIPHENYLETHERE DERES FREMSILLING OG ANVENDELSE TIL UKRUDTSBEKAEMPELSE SAMT HERBICIDER INDEHOLDENDE DISSE FORBINDELSER

摘要

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<1> is hydrogen, halo or trihalomethyl; X<2> is trihalomethyl or halo; Y is O, NH, NR<1> or S; R<1> and R<2> 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.