申请人:Merck Patent Gesellschaft Mit Beschrankter Haftung
公开号:US04925590A1
公开(公告)日:1990-05-15
Derivatives of 4-cyano-2,3-difluorophenol of the formula I ##STR1## wherein R.sup.1 is an alkyl group which has 1-12 C atoms and in which one or two CH.sub.2 groups can also be replaced by --O--, --CO--, --CO--O-- and/or --CH.dbd.CH--, no two 0 atoms being directly attached to one another, A.sup.1 and A.sup.2 independently of one another are each 1,4-phenylene which is unsubstituted or substituted by one or two F atoms, and in which one or two CH groups can also be replaced by N, or trans-1,4-cyclohexylene in which one or two non-adjacent CH.sub.2 groups can also be replaced by 0 atoms and/or S atoms, Z is --CO--O--, --O--CO--, --CH.sub.2 CH.sub.2 --, OCH.sub.2 --, --CH.sub.2 O, --C.tbd.C-- or a single bond, m is 0, 1 or 2 and Q is --CO-- or --CH.sub.2 --.
公式I的4-氰基-2,3-二氟苯酚的衍生物,其中R.sup.1是具有1-12个碳原子的烷基基团,其中一个或两个CH.sub.2基团也可以被--O--,--CO--,--CO--O--和/或--CH.dbd.CH--取代,没有两个0原子直接连接在一起,A.sup.1和A.sup.2彼此独立地是未取代或被一个或两个F原子取代的1,4-苯基,其中一个或两个CH基团也可以被N取代,或者是trans-1,4-环己基,其中一个或两个非相邻的CH.sub.2基团也可以被0原子和/或S原子取代,Z是--CO--O--,--O--CO--,--CH.sub.2 CH.sub.2 --,OCH.sub.2 --,--CH.sub.2 O,--C.tbd.C--或单键,m为0、1或2,Q为--CO--或--CH.sub.2--。