Herbicidal 4-trifluoromethyl-3'-nitrogen-substituted-4'-substituted diphenyl ethers

Claim 1

A compound of the formula ##STR8## wherein W is --NO 2 , --CN, --SO n CH 3 (wherein n=0, 1, or 2) or a halogen atom, X is a hydrogen atom, a halogen atom, preferably a fluorine atom or a chlorine atom, a trihalomethyl group, preferably a trifluoromethyl group, a (C 1 -C 4 )alkyl group, preferably a methyl group, or a cyano group, Y is a hydrogen atom, a halogen atom, preferably a fluorine atom or a chlorine atom, or a trihalomethyl group, preferably a trifluoromethyl group, and Z is --R 1 --R 2 --R 3 wherein ##STR9## R 4 is --R 9 , --Cl, --F, --CF 3 , --CN, or --COR 7 ; R 5 is --H, (C 1 -C 4 )alkyl, (C 1 -C 4 )alkoxy, --CN, --COR 7 , --NH[(C 1 -C 4 )]alkyl, --N[(C 1 -C 4 )]alkyl 2 , --S(O) n R 8 , or --CO 2 R 9 ; R 6 is --R 9 , --CN, --SO 2 R 8 , or --CO 2 R 9 ; ##STR10## R 8 is (C 1 -C 4 )alkyl, carb(C 1 -C 4 )alkoxy, or --CF 3 ; R 9 is --H, (C 1 -C 4 )alkyl, (C 2 14 C 4 )alkenyl, (C 2 -C 4 )alkynyl, (C 2 -C 4 )hydroxyalkyl, (C 1 -C 4 )alkoxy(C 2 -C 4 )alkyl, (C 1 -C 4 )alkylthio(C 1 -C 4 )alkyl, (C 1 -C 4 )alkylsulfinyl(C 1 -C 4 )alkyl, (C 1 -C 4 )alkylsulfonyl(C 1 -C 4 )alkyl, carboxy(C 1 -C 4 )alkyl, carb(C 1 -C 4 )alkoxy(C 1 -C 4 )alkyl, cyano(C 1 -C 4 )alkyl, or halo(C 1 -C 4 )alkyl; m is separately selected from the integers 1, 2, 3 and 4 for each individually selected radical; and n is separately selected from the integers 0, 1 and 2 for each individually selected radical; including the agronomically-acceptable salts thereof, with the provisos that no oxygen atom shall be bonded to another oxygen atom, no sulfur atom shall be bonded to another sulfur atom, no halogen atom shall be on a carbon atom which is a α to an oxygen nitrogen or sulfur atom, and the sum of m plus n is at least 2 when R 3 is ##STR11## and R 7 is --OR 9 or --NR 4 R 6 .