Substituted pyridine 1-oxide herbicides

Details Substituted pyridine 1-oxide herbicides Substituted pyridine 1-oxide herbicides

C - Chemistry, Metallurgy

07

D

71/8.1, 260/290.

C07D 213/89 (2006.01) A01N 43/40 (2006.01)

Patent

CA 1164867

Abstract Compounds of the following formula are effective as premer- gence herbicides: Image wherein R and R1 may be the same or different and are C1 to C4 alkyl, C1 to C4 alkoxy, phenyl or halogen, provided that R or R1 is not halogen if attached in the 3- position of the pyridine ring, and R or R1 may further be hydrogen provided that one of them is one of the recited moieties other than hydrogen; R2 is hydrogen, halogen, methyl or ethyl; R3 is phenyl or phenyl substituted with halogen, C1 to C4 alkyl, C1 to C4 alkoxy, or nitro; and n is 1 or 2.

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