Cyanoketone derivative and herbicide containing it as an...

Details Cyanoketone derivative and herbicide containing it as an... Cyanoketone derivative and herbicide containing it as an...

C - Chemistry, Metallurgy

07

D

C07D 295/185 (2006.01) A01N 39/02 (2006.01) A01N 43/00 (2006.01) A01N 43/08 (2006.01) A01N 43/10 (2006.01) A01N 43/12 (2006.01) A01N 43/16 (2006.01) A01N 43/18 (2006.01) A01N 43/36 (2006.01) A01N 43/38 (2006.01) A01N 43/40 (2006.01) A01N 43/50 (2006.01) A01N 43/54 (2006.01) A01N 43/56 (2006.01) A01N 43/60 (2006.01) A01N 43/647 (2006.01) A01N 43/653 (2006.01) A01N 43/66 (2006.01) A01N 43/76 (2006.01) A01N 43/78 (2006.01) A01N 43/80 (2006.01) A01N 43/90 (2006.01) A01N 47/12 (2006.01) C07C 255/21 (2006.01) C07

Patent

CA 2126620

A cyanoketone derivative of the following formula (1) Image ...(1) wherein A1 is a substituted or unsubstituted phenyl or naphthyl group, or a substituted or unsubstituted heterocyclic group; each of X1, X2, X3 and X4 is independently an oxygen or sulfur atom; each of B1, B2 and B3 is independently a hydrogen atom or a C1 to C6 alkyl group; each of Y1, Y2, Y3 and Y4 is independently a hydrogen atom, a halogen atom or a C1 to C6 alkyl group; and each of A2 and A3 is independently selected from the group consisting of a hydrogen atom, a substituted or unsubstituted a C1 to C6 alkyl group, a C2 to C6 alkenyl group, a C1 to C4 alkoxy group, a C1 to C4 alkylthio group, a C1 to C6 alkoxycarbonyl group, a cyano group and a group as defined in A1; provided that both A2 and A3 can form a saturated or unsaturated ring which may contain a hetero atom and that when B1 is a hydrogen atom and B2 is alkyl, the compound of the formula (1) is an R- or S-enantiomers with regard to the asymmetric carbon to which B1 and B2 are bonded or a mixture of these enantiomers. The cyanoketone derivative has a extremely high herbicidal activity and is effective against a variety of gramineous weeds.

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