申请人:Canon Kabushiki Kaisha
公开号:US05849217A1
公开(公告)日:1998-12-15
An optically active compound represented by the formula R.sub.1 --A.sub.1 --A.sub.2 --X.sub.1 --A.sub.3 --(CH.sub.2).sub.p --L--A.sub.4 --R.sub.2, in which R.sub.1 is F, CN or straight chain, branched or cyclic alkyl and R.sub.2 is H, F, CH or straight chain or branched alkyl; A.sub.3 is 1,4-phenylene, pyridine-2,5-diyl, pyrimidine-2,5-diyl, pyrazine-2,5-diyl, pyridazine-3,6-diyl, 1,4-cyclohexylene, 1,3-dioxane-2,5-diyl, 1,3-ditiane-2,5-diyl, thiophene-2,5-diyl, thiazole-2,5-diyl, thiaziazole-2,5-diyl, benzoxazole-2,5-diyl, benzoxazole-2,6-diyl, benzothiazole-2,5-diyl, benzothiazole-2,6-diyl, benzofuran-2,5-diyl, benzofuran-2,6-diyl, quinoxaline-2,6-diyl, quinoline-2,6-diyl, 2,6-naphthylene, indane-2,5-diyl, 2-alkylindane-2,5-diyl, indanone-2,6-diyl, 2-alkylindane-2,6-diyl, coumarane-2,5-diyl and 2-alkylcoumarane-2,5-diyl; A.sub.1, A.sub.2 and A.sub.4 are single bond or A.sub.3 ; X.sub.1 ' is a single bond, --COO--, --OCO--, --CH.sub.2 O--, --OCH.sub.2 --, --CH.sub.2 CH.sub.2 --, --CH.dbd.CH-- or --C.tbd.C--; p is an integer from 2 to 20; and L is optically active.
化学式R.sub.1 --A.sub.1 --A.sub.2 --X.sub.1 --A.sub.3 --(CH.sub.2).sub.p --L--A.sub.4 --R.sub.2代表的一种光学活性化合物,其中R.sub.1为F、CN或直链、支链或环烷基,R.sub.2为H、F、CH或直链或支链烷基;A.sub.3为1,4-苯撑基、吡啶-2,5-二基、嘧啶-2,5-二基、吡嗪-2,5-二基、吡啶嗪-3,6-二基、1,4-环己撑基、1,3-二氧杂环戊烷-2,5-二基、1,3-二硫杂环戊烷-2,5-二基、噻吩-2,5-二基、噻唑-2,5-二基、噻二唑-2,5-二基、苯并噁唑-2,5-二基、苯并噁唑-2,6-二基、苯并噻唑-2,5-二基、苯并噻唑-2,6-二基、苯并呋喃-2,5-二基、苯并呋喃-2,6-二基、喹啉-2,6-二基、喹啉-2,6-二基、2,6-萘撑基、茚-2,5-二基、2-烷基茚-2,5-二基、茚酮-2,6-二基、2-烷基茚-2,6-二基、香豆素-2,5-二基和2-烷基香豆素-2,5-二基;A.sub.1、A.sub.2和A.sub.4为单键或A.sub.3;X.sub.1 '为单键、--COO--、--OCO--、--CH.sub.2 O--、--OCH.sub.2--、--CH.sub.2 CH.sub.2--、--CH.dbd.CH--或--C.tbd.C--;p为2到20的整数;L为光学活性。