申请人:Bayer Aktiengesellschaft
公开号:US04936892A1
公开(公告)日:1990-06-26
A 1-arylpyrazole of the formula (I) ##STR1## in which R.sup.1 stands for hydrogen or nitro, R.sup.2 stands for hydrogen, for a radical ##STR2## or a radical --S(O).sub.n --R.sup.5, R.sup.3 stands for alkyl, for a radical ##STR3## or for a radical --S(O).sub.n --R.sup.5, and, in addition, in the case where R.sup.2 stands for a radical --SO.sub.2 --R.sup.5, R.sup.3 alternatively stands for an inorganic or organic cation bonded in the manner of a salt, where R.sup.4 stands for hydrogen, alkyl, alkenyl, alkinyl, monohalogenoalkyl, alkoxyalkyl, halogenoalkoxyalkyl, alkylthioalkyl, alkoxy, alkylthio, alkylsulphonylalkyl, alkylsulphinylalkyl, alkylamino, dialkylamino, optionally substituted cycloalkyl, optionally substituted aryl, optionally substituted aryloxy, optionally substituted arylthio, or for optionally substituted arylamino, X stands for oxygen or sulphur, R.sup.5 stands for alkyl, halogenoalkyl or for optionally substituted aryl, n stands for a number 0, 1 or 2, and Ar stands for one of the radicals ##STR4## wherein A.sup.1 stands for hydrogen, fluorine or chlorine, A.sup.2 stands for fluorine or chlorine and A.sup.3 stands for hydrogen or fluorine, but excluding the compounds 5-ethoxycarbonylamino-1-(2,3-dichloro-4-trifluoromethylphenyl)-4-nitro- pyrazol and 5-acetamido-1-2,5-difluoro-4-trifluoromethylphenyl)-pyrazole. Such 1-arylpyrazoles are useful as herbicides and as plant growth-regulating agents.
化学式为(I)的1-芳基
吡唑,其中R1代表氢或硝基,R2代表氢,基团-
CH3,或基团-S(O)n-R5,R3代表烷基,基团-CH2 ,或基团-S(O)n-R5,此外,如果R2代表基团-SO2-R5,则R3可以选择代表以盐的形式结合的无机或有机阳离子,其中R4代表氢,烷基,烯丙基,炔丙基,单卤代烷基,烷氧基烷基,卤代烷氧基烷基,烷基
硫基烷基,烷氧基,烷基
硫基,烷基磺酰基烷基,烷基亚磺酰基烷基,烷基
氨基,二烷基
氨基,可选择取代的环烷基,可选择取代的芳基,可选择取代的芳氧基,可选择取代的芳
硫基,或者是可选择取代的芳基
氨基,X代表氧或
硫,R5代表烷基,卤代烷基或可选择取代的芳基,n代表数字0、1或2,Ar代表以下基团之一:其中A1代表氢、
氟或
氯,A2代表
氟或
氯,A3代表氢或
氟,但不包括5-乙氧羰基
氨基-1-(2,3-二
氯-4-三
氟甲基苯基)-
4-硝基吡唑和5-乙酰胺基-1-(2,5-二
氟-4-三
氟甲基苯基)-
吡唑。这种1-芳基
吡唑可用作
除草剂和
植物生长调节剂。