申请人:ZENECA LIMITED
公开号:EP0370644A2
公开(公告)日:1990-05-30
A herbicidal compound of formula (I):
wherein X is O, S(O)n or NRa where Ra is H or alkyl and n is O, 1 or 2;
R¹ is H or halo;
R² is N or CR³ where R³ is halo or NO₂;
R⁴ is H, halo, NO₂, alkyl, haloalkyl, CN, CO₂alkyl, cycloalkyl, phenyl, COalkyl, COphenyl, CHO,OH, NH₂, NHCOalkyl or alkoxy
R⁵ is H, halo or optionally substituted alkyl;
R⁶ is H, halo or optionally substituted alkyl;
provided that at least one of R⁵ and R⁶ is halo;
R⁷ is CN, CHO, COOR⁸, CONR⁸R⁹, where R⁸ is H, optionally substituted alkyl, alkenyl, alkynyl or aryl and R⁹ is a group R⁸, SO₂alkyl, NR¹⁰R¹¹ or N⁺R¹⁰R¹¹R¹² Z⁻ where Z is an agriculturally acceptable anion e.g. chloride and R¹⁰, R¹¹ and R¹² are independently selected from hydrogen and alkyl. Processes for the preparation of these compounds and compositions containing them are also described.
一种式(I)的除草化合物:
其中 X 是 O、S(O)n 或 NRa,其中 Ra 是 H 或烷基,n 是 O、1 或 2;
R¹ 是 H 或卤代
R² 是 N 或 CR³,其中 R³ 是卤素或 NO₂;
R⁴ 是 H、卤素、NO₂、烷基、卤代烷基、CN、CO₂烷基、环烷基、苯基、CO 烷基、CO 苯基、CHO、OH、NH₂、NHCO 烷基或烷氧基
R⁵ 是 H、卤代或任选取代的烷基;
R⁶ 是 H、卤代或任选取代的烷基;
但 R⁵ 和 R⁶ 中至少有一个是卤素;
R⁷ 是 CN、CHO、COOR⁸、CONR⁸R⁹,其中 R⁸ 是 H、任选取代的烷基、烯基、炔基或芳基,R⁹ 是基团 R⁸、SO₂烷基、NR¹⁰R¹¹或 N⁺R¹⁰R¹R¹² Z- 其中 Z 是农业上可接受的阴离子,如氯化物,而 R¹⁰R¹² Z- 是农业上可接受的阳离子。例如氯,R¹⁰、R¹¹ 和 R¹² 独立地选自氢和烷基。此外,还描述了制备这些化合物和含有这些化合物的组合物的工艺。