申请人:Bayer Aktiengesellschaft
公开号:US04273573A1
公开(公告)日:1981-06-16
Novel method for regulating the growth of plants which method comprises applying to the plants or their habitat, effective amounts of 2-thiazolone-5-carboxylic acid derivatives of the formula ##STR1## in which R.sup.1 represents hydrogen, alkyl, alkoxyalkyl, alkylmercaptoalkyl, alkyl substituted by a heterocyclic radical, alkyl substituted by alkylcarbonyl or alkyl substituted by arylcarbonyl (which in turn can carry one or more substituents on the aryl part selected independently from halogen, alkyl, halogenoalkyl, alkoxy, alkylthio and nitro), or represents alkenyl, cycloalkyl, optionally substituted aryl, aralkyl which is optionally substituted in the aryl part, or the grouping ##STR2## in which R.sup.4 represents hydrogen, alkyl or aryl, and R.sup.5 represents alkyl, alkylcarbonyl, carbalkoxy, alkylsulphonyl or arylsulphonyl or R.sup.4 and R.sup.5 conjointly with the adjoining nitrogen atom represent a 5-membered to 7-membered heterocyclic ring. R.sup.2 represents hydrogen, alkyl (which is optionally substituted by cycloalkyl, alkoxy, alkylmercapto, phenoxyl, arylthio or cyano), cycloalkyl which is optionally substituted by alkyl, or aralkyl which is optionally substituted, and R.sup.3 represents hydrogen, alkyl, alkoxyalkyl, halogenoalkyl, cycloalkyl, optionally substituted aryl or optionally substituted aralkyl.
一种调节植物生长的新方法,其方法包括向植物或其生境中施加2-噻唑酮-5-羧酸衍生物的有效量,该衍生物的化学式为##STR1## 其中R.sup.1代表氢、烷基、烷氧基烷基、烷基硫醇烷基、烷基取代的杂环基、烷基取代的烷基羰基或烷基取代的芳基羰基(其本身可以在芳基部分上携带一个或多个卤素、烷基、卤代烷基、烷氧基、烷硫基和硝基等取代基),或代表烯基、环烷基、可选取代的芳基、可选取代的芳基烷基或##STR2## 其中R.sup.4代表氢、烷基或芳基,R.sup.5代表烷基、烷基羰基、羧基烷氧基、烷基磺酰基或芳基磺酰基,或R.sup.4和R.sup.5与相邻的氮原子共同表示5-至7-成员杂环环。R.sup.2代表氢、烷基(可选用环烷基、烷氧基、烷基硫醇、苯氧基、芳基硫醇或氰基取代),可选取代的环烷基,或可选取代的芳基烷基,R.sup.3代表氢、烷基、烷氧基烷基、卤代烷基、环烷基、可选取代的芳基或可选取代的芳基烷基。