| abstract |
Compounds of the Formulan whereinn R' is hydrogen, halogen, nitro, or cyano; R 2 is halogen, trifluoromethyl, or cyano; R 3 is hydrogen, nitro, halogen, cyano, or (C 1 -C 4 )alkylthio, (C 1 -C 4 -alkylsulfinyl, or (C 1 -C 4 )-alkylsulfonyl; R 4 is hydrogen or (C 1 -C 4 ) straight or branched chain alkyl; R 5 is hydrogen or (C 1 -C 4 ) straight or branched chain alkyl; R 6 is cyano or carboxy or an agronomically acceptable salt, ester or amide thereof; n is an integer of one to four; and m is an integer of one to four. and compositions containing these compounds exhibit herbicidal activity. |