C - Chemistry – Metallurgy – 07 – C
Patent
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) C07D 213/64 (2006.01) C07D 213/643 (2006.01)
Patent
CA 1233469
HERBICIDAL 4-CHLORO-ARYLOXY-ACETYL- AND 4-CHLORO- -ARYLOXY-PROPIONYL-MALONATES A b s t r a c t The invention relates to new 4-chloro-aryloxy- -acetyl- or 4-chloro-aryloxy-propionyl-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 chlorine or methyl; R2 represents hydrogen or chlorine; R3 stands for hydrogen or methyl; R4 represents C1-4 alkyl and the two R4 groups may be identical or different; and X is -N= or -CH=. 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; Image /III/ or in the presence of an metal compound with a malonate of the general Formula III; or by reacting a compound of the general Formula IV Image /IV/ with a compound of the general Formula V /V/ Image /in which Formulae R1, R2, R3, R4 and X are as stated above; Z stands for halogen and Y represents halogen, cyano or alkylcarbonyloxy/. The new compounds of the general Formula I possess valuable herbicidal properties.
518816
Bacskai Gyorgy
Barta Istvan
Bihari Ferenc
Bohus Peter
Dutka Ferenc
Budapesti Vegyimuvek
Fetherstonhaugh & Co.
Mta Kozponti Kemiai Kutato Intezet
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