C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
260/361.2, 71/8.
C07D 307/20 (2006.01) A01N 43/08 (2006.01) A01N 47/18 (2006.01)
Patent
CA 2018845
ABSTRACT OF THE DISCLOSURE: This invention provides a diphenyl ether derivative represented by the formula (I): Image (I) wherein X1 represents a halogen atom or a C1-C3 haloalkyl group; X2 and X3 represent independently a hydrogen atom, a halogen atom, a trifluoromethyl group, a nitro group or a cyano group; Y represents a nitro group, a cyano group, a halogen atom, a C1-C3 haloalkyl group or a hydrogen atom; A represents a direct bond, a group represented by the formula: -CO2CH(R1)- wherein R1 represents a hydrogen atom or a C1-C3 alkyl group, a group represented by the formula: -C(R2)=NOCH(R3)- wherein R2 represents a hydrogen atom, a C1-C4 alkyl group which may be substituted with a C1-C4 alkoxy group, C1-C4 alkylthio group or halogen atom, or a C1-C3 alkoxy group, and R3 represents a hydrogen atom or a C1-C3 alkyl group, or a group represented by the formula: -C(=NOR4)OCH(R3)- wherein R3 is the same as defined above and R4 represents a C1-C3 alkyl group; and B represents a group represented by the formula: Image wherein R5 represents a halogen atom; a hydroxyl group; an acyloxy group having up to 6 carbon atoms which may be substituted with a halogen atom, C1-C6 alkoxy group, C2-C7 alkoxycarbonyl group, aryl group which may be substituted with 1 to 3 halogen atoms and/or 1 to 3 C1-C3 alkyl groups or aryloxy group which may be substituted with 1 to 3 halogen atoms and/or 1 to 3 C1-C3 alkyl groups; a C4-C9 cycloalkylcarbonyloxy group; a benzoyloxy group which may be substituted with a halogen atom, C1-C4 alkyl group or C1-C4 alkoxy group; a C2-C7 alkoxycarbonyloxy group; a C1-C4 alkylsufonyloxy group; or a carbamoyloxy group which may be substituted with a C1-C4 alkyl group and/or C1-C4 alkoxy group. A process for preparing the diphenyl ether derivative and a herbicidal composition containing the diphenyl ether derivative as active ingredient are also described. The compounds of this invention show a wide herbicidal spectrum against both annual and perennial weeds and also have a high degree of safety or harmlessness to crops.
Jikihara Tetsuo
Minami Noriko
Suzuki Seiichi
Watanabe Hisao
Goudreau Gage Dubuc
Jikihara Tetsuo
Minami Noriko
Mitsubishi Kasei Corporation
Suzuki Seiichi
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