申请人:RHONE-POULENC AGRICULTURE LTD.
公开号:EP0555957A1
公开(公告)日:1993-08-18
Pyrido[2,3-d]pyridazin-5-one and pyrido[2,3-d]pyridazin-5-thione derivatives of general formula (I):
wherein R and R¹ independently represent hydrogen, optionally halogenated alkyl, alkenyl or alkynyl, optionally substituted heterocycle or a group -[CR⁴¹R⁴²]n-(phenyl)-(R³)q;
R² represents halogen, optionally halogenated alkyl, alkenyl or alkynyl, CN; -CO₂R⁴; -S(O)rR⁴; -NO₂; -NR⁴¹R⁴²; -OH; -COR⁴, -S(O)rR⁵, -CO₂R⁵, -OR⁵; -CONR⁴¹R⁴², -OSO₂R⁵, -OSO₂R⁶, -OCH₂R⁵, -N(R⁴¹)COR⁶, -N(R⁴¹)SO₂R⁵, -N(R⁴¹)SO₂R⁶, -SO₂NR⁴¹R⁴²,optionally substituted phenyl, alkoxy or haloalkoxy;
X represents oxygen or sulphur;
R³ represents halogen, optionally halogenated alkyl, alkenyl, alkoxy, alkynyl, -OH, -S(O)rR⁴, -CO₂R⁴, COR⁴, -CN, -NO₂, -NR⁴¹R⁴², -OR⁵; -CONR⁴¹R⁴², -OSO₂R⁵, -OSO₂R⁶, -OCH₂R⁵, -N(R⁴¹)COR⁶, -N(R⁴¹)SO₂R⁵, -N(R⁴¹)SO₂R⁶ or -SO₂NR⁴¹R⁴²;
R⁴ represents a hydrogen atom or optionally halogenated C₁₋₆ alkyl;
R⁴¹ and R⁴², which may be the same or different, each represents a hydrogen atom or optionally halogenated C₁₋₄alkyl;
R⁵ represents a phenyl group optionally substituted by from one to five groups selected from halogen, nitro, cyano, R⁴ and -OR⁴;
m represents zero or an integer from one to three;
n represents zero, one or two; where n is two, the groups -(CR⁴¹R⁴²)- may be the same or different;
q represents zero or an integer from one to five; r represents zero, one or two;
with the proviso that when m represents zero R and R¹ do not simultaneously represent hydrogen;
and agriculturally acceptable salts thereof are useful as herbicides.
通式 (I) 的吡啶并[2,3-d]哒嗪-5-酮和吡啶并[2,3-d]哒嗪-5-硫酮衍生物:
其中 R 和 R¹ 各自代表氢、任选卤代的烷基、烯基或炔基、任选取代的杂环或基团-[CR⁴¹R⁴²]n-(苯基)-(R³)q;
R² 代表卤素、任选卤代烷基、烯基或炔基、CN;-CO₂R⁴;-S(O)rR⁴;-NO₂;-NR⁴¹R⁴²;-OH;-CORR⁴,-S(O)rR⁵,-CO₂R⁵,-OR⁵;-CONR⁴¹R⁴²、-OSO₂R⁵、-OSO₂R⁶、-OCH₂R⁵、-N(R⁴¹)COR⁶、-N(R⁴¹)SO₂R⁵、-N(R⁴¹)SO₂R⁶、-SO₂NR⁴¹R⁴²、任选取代的苯基、烷氧基或卤代烷氧基;
X 代表氧或硫;
R³ 代表卤素、任选卤代烷基、烯基、烷氧基、炔基、-OH、-S(O)rR⁴、-CO₂R⁴、COR⁴、-CN、-NO₂、-NR⁴¹R⁴²、-OR⁵;-CONR⁴¹R⁴²、-OSO₂R⁵、-OSO₂R⁶、-OCH₂R⁵、-N(R⁴¹)COR⁶、-N(R⁴¹)SO₂R⁵、-N(R⁴¹)SO₂R⁶或-₂NR⁴¹R⁴²;
R⁴ 代表氢原子或任选卤代 C₁₋₆ 烷基;
R⁴¹ 和 R⁴² 可以相同或不同,各自代表氢原子或任选卤化的 C₁₋₄ 烷基;
R⁵ 代表被一至五个选自卤素、硝基、氰基、R⁴ 和 -OR⁴ 的基团任选取代的苯基;
m 代表零或一至三的整数;
n 代表零、一或二;当 n 为二时,基团-(CR⁴¹R⁴²)-可以相同或不同;
q 代表零或一至五的整数; r 代表零、一或二;
但当 m 代表零时,R 和 R¹ 不能同时代表氢;
及其农业上可接受的盐类可用作除草剂。