申请人:E. I. Du Pont de Nemours and Company
公开号:US04748185A1
公开(公告)日:1988-05-31
The invention provides 4-hydroxycoumarin compounds of general formula ##STR1## wherein R.sup.1 and R.sup.2 are independently selected from hydrogen and halogen atoms and R represents a group of formula ##STR2## wherein one of n and n' is O, the other being 0 or 1, D represents a moiety --O--, --(CH.sub.2).sub.m -- or --O(CH.sub.2).sub.m -- where m is 1 or 2 and X represents a substituent selected from hydrogen, halogen, CN, CF.sub.3, OCF.sub.3, C.sub.1-6 alkyl and C.sub.1-6 alkoxy moieties, provided that when n is 1 and D is --OCH.sub.2 --, X may additionally represent a phenyl group, optionally substituted in the 4-position by a substituent selected from halogen, CN, CF.sub.3, OCF.sub.3, C.sub.1-6 alkyl and C.sub.1-6 alkoxy moieties; their preparation and their use as rodenticides.
该发明提供了通式为##STR1##的4-羟基香豆素化合物,其中R.sup.1和R.sup.2分别选自氢原子和卤素原子,R表示式##STR2##中的一个基团,其中n和n'中的一个为O,另一个为0或1,D表示一个基团--O--,--(CH.sub.2).sub.m --或--O(CH.sub.2).sub.m--,其中m为1或2,X表示从氢、卤素、CN、CF.sub.3、OCF.sub.3、C.sub.1-6烷基和C.sub.1-6烷氧基中选择的取代基,但当n为1且D为--OCH.sub.2--时,X还可以表示苯基,该苯基在4-位上可以选择地被卤素、CN、CF.sub.3、OCF.sub.3、C.sub.1-6烷基和C.sub.1-6烷氧基中的取代基取代;其制备方法和用作杀鼠剂的用途。