申请人:Rhone Poulenc Agriculture Limited
公开号:US05405826A1
公开(公告)日:1995-04-11
Pyrido[2,3-d]pyridazin-5-one and pyrido[2,3-d]pyridazin-5-thione derivatives of general formula (I): ##STR1## wherein R and R.sup.1 independently represent hydrogen, optionally halogenated alkyl, alkenyl or alkynyl, optionally substituted heterocycle or a group --[CR.sup.41 R.sup.42 ].sub.n -(phenyl)-(R.sup.3).sub.q ; R.sup.2 represents halogen, optionally halogenated alkyl, alkenyl or alkynyl, CN; --CO.sub.2 R.sup.4 ; --S(O).sub.r R.sup.4 ; --NO.sub.2 ; --NR.sup.41 R.sup.42 ; --OH; --COR.sup.4, --S(O).sub.r R.sup.5, --CO.sub.2 R.sup.5, --OR.sup.5 ; --CONR.sup.41 R.sup.42, --OSO.sub.2 R.sup.5, --OSO.sub.2 R.sup.6, --OCH.sub.2 R.sup.5, --N(R.sup.41)COR.sup.6, --N(R.sup.41)SO.sub.2 R.sup.5, --N(R.sup.41)SO.sub.2 R.sup.6, --SO.sub.2 NR.sup.41 R.sup.42, optionally substituted phenyl, alkoxy or haloalkoxy; X represents oxygen or sulphur; R.sup.3 represents halogen, optionally halogenated alkyl, alkenyl, alkoxy, alkynyl, --OH, --S(O).sub.r R.sup.4, --CO.sub.2 R.sup.4, COR.sup.4, --CN, --NO.sub.2, --NR.sup.41 R.sup.42, --OR.sup.5 ; --CONR.sup.41 R.sup.42, --OSO.sub.2 R.sup.5, --OSO.sub.2 R.sup.6, --OCH.sub.2 R.sup.5, --N(R.sup.41)COR.sup.6, --N(R.sup.41)SO.sub.2 R.sup.5, --N(R.sup.41)SO.sub.2 R.sup.6 or --SO.sub.2 NR.sup.41 R.sup.42 ; R.sup.4 represents a hydrogen atom or optionally halogenated C.sub.1-6 alkyl; R.sup.41 and R.sup.42, which may be the same or different, each represents a hydrogen atom or optionally halogenated C.sub.1-4 alkyl; R.sup.5 represents a phenyl group optionally substituted by from one to five groups selected from halogen, nitro, cyano, R.sup.4 and --OR.sup.4 ; m represents zero or an integer from one to three; n represents zero, one or two; where n is two, the groups --(CR.sup.41 R.sup.42)-- 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 R.sup.1 do not simultaneously represent hydrogen; and agriculturally acceptable salts thereof are useful as herbicides.
Pyrido[2,3-d]pyridazin-5-one和pyrido[2,3-d]pyridazin-5-thione的一般式(I)衍生物:其中R和R.sup.1独立地代表氢,可选择卤代烷基,烯基或炔基,可选择取代的杂环或一个群--[CR.sup.41 R.sup.42].sub.n-(苯基)-(R.sup.3).sub.q;R.sup.2代表卤素,可选择卤代烷基,烯基或炔基,CN;--CO.sub.2R.sup.4;--S(O).sub.rR.sup.4;--NO.sub.2;--NR.sup.41R.sup.42;--OH;--COR.sup.4,--S(O).sub.rR.sup.5,--CO.sub.2R.sup.5,--OR.sup.5;--CONR.sup.41R.sup.42,--OSO.sub.2R.sup.5,--OSO.sub.2R.sup.6,--OCH.sub.2R.sup.5,--N(R.sup.41)COR.sup.6,--N(R.sup.41)SO.sub.2R.sup.5,--N(R.sup.41)SO.sub.2R.sup.6,--SO.sub.2NR.sup.41R.sup.42,可选择取代的苯基,烷氧基或卤代烷氧基;X代表氧或硫;R.sup.3代表卤素,可选择卤代烷基,烯基,烷氧基,炔基,--OH,--S(O).sub.rR.sup.4,--CO.sub.2R.sup.4,COR.sup.4,--CN,--NO.sub.2,--NR.sup.41R.sup.42,--OR.sup.5;--CONR.sup.41R.sup.42,--OSO.sub.2R.sup.5,--OSO.sub.2R.sup.6,--OCH.sub.2R.sup.5,--N(R.sup.41)COR.sup.6,--N(R.sup.41)SO.sub.2R.sup.5,--N(R.sup.41)SO.sub.2R.sup.6或--SO.sub.2NR.sup.41R.sup.42;R.sup.4代表氢原子或可选择卤代的C.sub.1-6烷基;R.sup.41和R.sup.42,可以相同也可以不同,每个代表氢原子或可选择卤代的C.sub.1-4烷基;R.sup.5代表一个苯基,可选择由卤素,硝基,氰基,R.sup.4和--OR.sup.4中选择的一到五个基团取代;m代表零或一个从一到三的整数;n代表零,一或二;当n为二时,群--(CR.sup.41R.sup.42)--可以相同也可以不同;q代表零或一个从一到五的整数;r代表零,一或二;但是当m代表零时,R和R.sup.1不同时代表氢;其农业上可接受的盐对除草剂有用。