申请人:Merck Patent Gesellschaft mit beschrankter Haftung
公开号:US05308541A1
公开(公告)日:1994-05-03
The invention relates to novel halogenated benzene derivatives of the formula I ##STR1## in which n is 1 to 7 [sic], the rings A and B are each trans-1,4-cyclohexylene, or one of the rings A and B is alternatively 1,4-phenylene or 3-fluoro-1,4-phenylene, X is F, Cl, --CHF.sub.2, --CF.sub.3, --CN, --OCF.sub.3 or --OCHF.sub.2, Y and Z are each, independently of one another, H or F, r=1 or, in the case where s=1, B=trans-1,4-cyclohexylene and simultaneously X=CHF.sub.2, --CF.sub.3, --OCF.sub.3 or --OCHF.sub.2, r is alternatively 0, and s=1 or, in the case where B=1,4-phenylene or 3-fluoro-1,4-phenylene, s=0.
本发明涉及公式I的新型卤代苯衍生物,其中n为1至7,环A和环B分别为反式1,4-环己烯基,或环A和环B中的一个交替为1,4-苯基或3-氟-1,4-苯基,X为F、Cl、--CHF.sub.2、--CF.sub.3、--CN、--OCF.sub.3或--OCHF.sub.2,Y和Z各自独立地为H或F,r=1或在s=1的情况下,B=反式1,4-环己烯基且同时X=CHF.sub.2、--CF.sub.3、--OCF.sub.3或--OCHF.sub.2,r也可以是0,s=1或在B=1,4-苯基或3-氟-1,4-苯基的情况下,s=0。