申请人:Bayer Aktiengesellschaft
公开号:US04053296A1
公开(公告)日:1977-10-11
Ferrocene derivatives of the formula ##STR1## IN WHICH R represents the group COOR.sup.1, in which R.sup.1 represents hydrogen, alkyl, one equivalent of an alkali metal, alkaline earth metal or heavy metal cation, or an ammonium cation in which one or more Hydrogen atoms can be replaced by alkyl, Or R represents the group COR.sup.2 in which R.sup.2 represents optionally substituted alkyl, optionally substituted alkenyl, optionally substituted cycloalkyl, optionally substituted cycloalkenyl or optionally substituted phenyl, Or R represents the group ##STR2## in which R.sup.3 represents hydrogen or alkyl and R.sup.4 represents a ureido or thioureido radical, a radical of the formula --CH.sub.2 --CH.sub.2 --N.dbd.CH--ferrocene, a 5-membered or 6-membered heterocyclic radical or a group of the formula --OR.sup.5 or --NH-R.sup.6, in which R.sup.5 represents hydrogen, alkyl, one equivalent of an alkali metal or alkaline earth metal cation, or an ammonium cation in which one or more hydrogen atoms canbe replaced by alkyl, and R.sup.6 represents aryl or a 5-membered or 6-membered heterocyclic radical, Or R represents the sulfonamide group or the radical --SO.sub.3 R.sup.7, in which R.sup.7 represents hydrogen, alkyl, one equivalent of an alkali metal or alkaline earth metal cation, or an ammonium cation in which one or more hydrogen atoms can be replaced by alkyl, Or p1 R represents an alkyl, aralkyl or aryl radical which can be substituted by hydroxyl, cyano, COOR.sup.1 or ##STR3## in which R.sup.1 has the above-mentioned meansing, R', r" and R'", independently of one another, each represent hydrogen or alkyl and A.sup.- represents halide or methosulfate, are outstandingly effective for supplying plants with the micro-nutrient iron.
式为##STR1##的二茂铁衍生物,其中R代表COOR.sup.1基团,其中R.sup.1代表氢、烷基、一个碱金属、碱土金属或重金属阳离子的一个当量,或一种铵阳离子,其中一个或多个氢原子可以被烷基取代;或R代表COR.sup.2基团,其中R.sup.2代表可选取代的烷基、可选取代的烯基、可选取代的环烷基、可选取代的环烯基或可选取代的苯基;或R代表##STR2##基团,其中R.sup.3代表氢或烷基,R.sup.4代表尿素基或硫脲基,公式--CH.sub.2--CH.sub.2--N.dbd.CH--二茂铁基团的基团,一个5元或6元杂环基团或一个公式--OR.sup.5或--NH-R.sup.6的基团,其中R.sup.5代表氢、烷基、一个碱金属或碱土金属阳离子,或一种铵阳离子,其中一个或多个氢原子可以被烷基取代,R.sup.6代表芳基或一个5元或6元杂环基团;或R代表磺酰胺基团或基团--SO.sub.3R.sup.7,其中R.sup.7代表氢、烷基、一个碱金属或碱土金属阳离子,或一种铵阳离子,其中一个或多个氢原子可以被烷基取代;或p1R代表一个烷基、芳基烷基或芳基基团,可以被羟基、氰基、COOR.sup.1或##STR3##取代,其中R.sup.1具有上述含义,R'、r"和R'"各自独立地代表氢或烷基,A.sup.-代表卤素或甲磺酸根离子,对于为植物供应微量营养铁具有出色的效果。