申请人:Hoffmann-La Roche Inc.
公开号:US05393458A1
公开(公告)日:1995-02-28
Compounds of the general formula ##STR1## wherein R.sup.1 signifies alkyl or alkenyl with 1 to 12 and, respectively, 2 to 12 carbon atoms, which is unsubstituted or mono- or multiply-substituted with halogen and in which one methylene group can be replaced by --O--; R.sup.2 signifies alkyl or alkenyl with 1 to 12 and, respectively, 2 to 12 carbon atoms, which is unsubstituted or mono- or multiply-substituted with halogen and in which one or more methylene groups can be replaced by --O-- and/or --COO-- or --OOC--; Z.sup.1 signifies a single covalent bond or --CH.sub.2 CH.sub.2 --; A.sup.1, A.sup.2 each independently represent 1,4-phenylene, which is unsubstituted or mono- or multiply-substituted with halogen, or pyridine-2,5-diyl or pyrimidine-2,5-diyl; A.sup.3 represents 1,4-phenylene, which is unsubstituted or mono- or multiply-substituted with halogen, or pyridine-2,5-diyl, pyrimidine-2,5-diyl or trans-1,4-cyclohexylene; n is 0 or 1; with the proviso that at least one of rings A.sup.1, A.sup.2 or A.sup.3 signifies either pyridine-2,5-diyl or pyrimidine-2,5-diyl; and with the further proviso that, when n=0, R.sup.1 represents 1E-alkenyl and R.sup.2 represents alkyl, alkoxy or alkenyloxy, their manufacture and use in electro-optical devices as well as mixtures which contain said compounds are described in the present Application.
一般式为##STR1##的化合物,其中R.sup.1表示具有1至12个碳原子的烷基或烯基,分别未经取代或单取代或多取代卤素,并且其中一个亚甲基基团可以被--O--替换;R.sup.2表示具有1至12个碳原子的烷基或烯基,分别未经取代或单取代或多取代卤素,并且其中一个或多个亚甲基基团可以被--O--和/或--COO--或--OOC--替换;Z.sup.1表示单个共价键或--CH.sub.2 CH.sub.2 --;A.sup.1,A.sup.2各自独立地表示1,4-苯撑基,未经取代或单取代或多取代卤素,或吡啶-2,5-二基或嘧啶-2,5-二基;A.sup.3表示1,4-苯撑基,未经取代或单取代或多取代卤素,或吡啶-2,5-二基,嘧啶-2,5-二基或反-1,4-环己撑基;n为0或1;但是至少有一个环A.sup.1,A.sup.2或A.sup.3表示吡啶-2,5-二基或嘧啶-2,5-二基;而且当n=0时,R.sup.1表示1E-烯基,R.sup.2表示烷基,烷氧基或烯氧基。本申请描述了这些化合物的制造和用于电光器件的混合物。