申请人:Rolic AG
公开号:US05759443A1
公开(公告)日:1998-06-02
Objects of this invention are cyclopentyl compounds of the general formula ##STR1## wherein k signifies a whole number of 4 to 18; n signifies 0 or 1; Y.sup.1, Y.sup.2 signify a single bond, --O--, --COO-- or --OOC--; rings A, B, C each independently signify optionally mono- or difluorinated 1,4-phenylene, pyrimidine-2,5-diyl, pyridine-2,5-diyl, pyrazine-2,5-diyl, naphthalene-2,6-diyl, quinoline-2,6-diyl, thiophene-2,5-diyl, thiazole-2,5-diyl or 1,3,4-thiadiazole-2,5-diyl and ring C also signifies trans-1,4-cyclohexylene or trans-1,3-dioxane-2,5-diyl; Z.sup.1 signifies a single bond, --COO--,--OOC-- or --C.tbd.C--; Z.sup.2 signifies --COO--, --OOC--, --OCH.sub.2 --, --CH.sub.2 O-- or --(CH.sub.2).sub.2 --; and R signifies straight-chain or branched, optionally optically active, alkyl or alkenyl with 4 to 20 carbon atoms in which one or two non-adjacent methylene groups can be replaced by --O--, --COO--, --OOC-- and/or epoxyethylene and/or at least one hydrogen can be replaced by fluorine and/or one hydrogen can be replaced by chlorine or cyano and/or a terminal hydrogen can be replaced by cyclopentyl, mixtures containing such compounds as well as electro-optical devices containing these compounds.
本发明的对象是通式为 ##STR1## 的环戊基化合物,其中k表示4到18的整数;n表示0或1;Y.sup.1,Y.sup.2表示单键,-O-,-COO-或-OOC-;环A,B,C各自独立地表示可选的单氟或双氟1,4-苯撑基,嘧啶-2,5-二基,吡啶-2,5-二基,吡嗪-2,5-二基,萘-2,6-二基,喹啉-2,6-二基,噻吩-2,5-二基,噻唑-2,5-二基或1,3,4-噻二唑-2,5-二基,环C还表示反-1,4-环己基或反-1,3-二氧杂环己烷-2,5-二基;Z.sup.1表示单键,-COO-,-OOC-或-C.tbd.C-;Z.sup.2表示-COO-,-OOC-,-OCH.sub.2-,-CH.sub.2O-或-(CH.sub.2).sub.2-;R表示直链或支链,可选择光学活性,烷基或烯基,具有4到20个碳原子,其中一个或两个非相邻的亚甲基可以被- O-,-COO-,-OOC-和/或环氧乙烷替换,至少一个氢可以被氟替换,一个氢可以被氯或氰替换,一个末端氢可以被环戊基替换,包含这种化合物的混合物以及包含这些化合物的电光器件。