Substituted benzimidazole and indazole derivatives, processes for their preparation and their use as herbicides
申请人:ZENECA LIMITED
公开号:EP0448206A2
公开(公告)日:1991-09-25
A herbicidal compound of formula (I) :
or N-oxide or quaternised derivative thereof;
in which the dotted lines indicate the presence of two double bonds arranged so as to form a fused hetero-aromatic ring system;
Ar is an optionally substituted aryl or heterocyclic ring system;
W is 0 or NR1
where R1 is H or lower alkyl;
A, B, D are independently selected from N, NR2, N-E, CR6, C-E or C(R6)E;
wherein E is:
provided 2 of A, B and D are N, NR2 or N-E and at least one of A, B or D carries a group E;
where R2 is H, OR7, CN, COOR8, alkyl or haloalkyl;
R3 and R4 are independently selected from H, optionally substituted alkyl, alkenyl or alkynyl, halogen, NR9R10, or
R3 and R4 together with the carbon to which they are attached form an optionally substituted alkenyl or cycloalkyl group;
R5 is CO2R11, CN, COR11, CH2OR11, CH(OH)R", CH(OR11)R12, CSNH2, COSR11, CSOR", CONHSO2R11, CONR13R14, CONHNR13R14, CONHN+R13R14R15 Y-, CO2-M+ or COON=CR13R14;
X is (CH2)n, CH=CH, CH(OR16)CH2 or COCHz;
where n is 0, 1 or 2;
M is an agriculturally acceptable cation;
Y- is an agriculturally acceptable anion;
R6 is H, halogen, OR7, CN, COOR8, alkyl or haloalkyl;
R7 and R8 are independently H or lower alkyl;
R11, R12 and R16 are independently selected from H or an optionally substituted alkyl, alkenyl, alkynyl or aryl group; and
R9, R10, R13, R14 and R15 are independently selected from H or an optionally substituted alkyl, alkenyl, alkynyl or aryl group or any two of R9, R10, R13, R14 and R15 together with the atom to which they are attached form a cycloalkyl or heterocyclic ring providing that the compound is other than 5-(2,4-dichlorophenoxy)indazol-1- ylacetic acid or its methyl ester.
Process for the preparation of these compounds and compositions containing them are also described.
式(I)的除草化合物:
或其 N-氧化物或季铵化衍生物;
其中虚线表示存在两个双键,排列成一个融合的杂芳香环系统;
Ar 是任选取代的芳环或杂环系统;
W 是 0 或 NR1
其中 R1 是 H 或低级烷基;
A、B、D 独立选自 N、NR2、N-E、CR6、C-E 或 C(R6)E;
其中 E 是
A、B 和 D 中有 2 个是 N、NR2 或 N-E,且 A、B 或 D 中至少有一个带有基团 E;
其中 R2 为 H、OR7、CN、COOR8、烷基或卤代烷基;
R3 和 R4 独立选自 H、任选取代的烷基、烯基或炔基、卤素、NR9R10,或
R3 和 R4 与它们所连接的碳一起形成任选取代的烯基或环烷基;
R5 是 CO2R11、CN、COR11、CH2OR11、CH(OH)R"、CH(OR11)R12、CSNH2、COSR11、CSOR"、CONHSO2R11、CONR13R14、CONHNR13R14、CONHN+R13R14R15 Y-、CO2-M+ 或 COON=CR13R14;
X 是 (CH2)n、CH=CH、CH(OR16)CH2 或 COCHz;
其中 n 为 0、1 或 2;
M 是农业上可接受的阳离子;
Y- 是农业上可接受的阴离子;
R6 是 H、卤素、OR7、CN、COOR8、烷基或卤代烷基;
R7 和 R8 独立地为 H 或低级烷基;
R11、R12 和 R16 独立选自 H 或任选取代的烷基、烯基、炔基或芳基;以及
R9、R10、R13、R14 和 R15 独立选自 H 或任选取代的烷基、烯基、炔基或芳基,或 R9、R10、R13、R14 和 R15 中的任意两个与它们所连接的原子一起形成环烷基或杂环,条件是该化合物不是 5-(2,4-二氯苯氧基)吲唑-1-基乙酸或其甲酯。
此外,还介绍了这些化合物的制备工艺和含有这些化合物的组合物。