申请人:Dainippon Ink and Chemicals, Inc.
公开号:US05061398A1
公开(公告)日:1991-10-29
An optically active lactone derivative represented by the following general formula (I): ##STR1## wherein R.sup.1 represents a straight-chain or branched alkyl, alkoxyl, alkanoyloxy, alkoxycarbonyl, alkoxyalkyl, alkoxyalkanoyloxy, or alkoxyalkoxyl group having 1 to 20 carbon atoms or an optically active group of each of the above kinds, R.sup.2 represents a straight-chain or branched alkyl group having 1 to 20 carbon atoms, ##STR2## or trans-1,4-cyclohexylene group of the formula and the asymmetric carbon atoms at the 2- and 4-positions in the lactone ring each independently is of the (S) or (R) configuration, an intermediate therefor, a process for producing the intermediate, a liquid-crystal composition, and a liquid-crystal display device.
以下是一种光学活性内酯衍生物,其通式为(I):##STR1##
其中,R^1代表具有1到20个碳原子的直链或支链烷基,烷氧基,烷酰氧基,烷氧羰基,烷氧基烷基,烷氧基烷酰氧基或烷氧基烷氧基基团或上述各种基团的光学活性基团;R^2代表具有1到20个碳原子的直链或支链烷基,##STR2##或式的顺-1,4-环己烯基团,并且内酯环中2位和4位的不对称碳原子各自独立地为(S)或(R)构型。此外,本发明还涉及其中间体,制备该中间体的方法,液晶组合物以及液晶显示装置。