Herbicidal aryloxy phenoxy acyl malonates

Details Herbicidal aryloxy phenoxy acyl malonates Herbicidal aryloxy phenoxy acyl malonates

C - Chemistry, Metallurgy

07

C

260/297, 71/8.1,

C07C 69/738 (2006.01) A01N 39/02 (2006.01) A01N 43/40 (2006.01) C07C 69/716 (2006.01) C07D 213/64 (2006.01) C07D 213/643 (2006.01)

Patent

CA 1233468

HERBICIDAL ARYLOXY PHENOXY ACYL MALONATES A b s t r a c t The invention relates to new aryloxy phenoxy acyl malonates of the general Formula I Image (I) a process for the preparation thereof and herbicidal compositions comprising the same. In the general Formula I R1 stands for halogen, trifluoromethyl, trifluoromethoxy, cyano, or hydrogen; R2 represents hydrogen, halogen or methyl; R3 is C1-4 alkyl; and the R3 substituents may be the same or different, X stands for -N= or -CH= and n is 0 or 1. The compounds of the general Formula I may be prepared by reacting a compound of the general Formula II Image (II) with a metal derivative of a malonate of the general Formula III 3 (III) or in the presence of a metal compound with a malonate of the general Formula III; or reacting a compound of the general Formula IV Image (IV) with a compound of the general Formula V; Image (V) or reacting a compound of the general Formula VI Image (VI) with a compound of the general Formula VII Image VII (in which Formulae R1, R2, R3, X and n are as stated above; Y stands for halogen, cyano or alkylcarbonyloxy; Z represents halogen; and if Q is hydroxy or alkali metal oxy, P stands for halogen, or if Q stands for halogen P represents hydroxy or alkali metal oxy). The new compounds of the general Formula I possess valuable herbicidal properties.

518815

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