发明授权
US4876028A Chiral aryl-2,3-epoxyalkyl-ethers and the corresponding thio compounds
thereof, and the use thereof as dopes in liquid-crystal phases
失效
手性芳基-2,3-环氧烷基醚及其相应的硫代化合物及其作为液晶相中的掺杂物的用途
- 专利标题： Chiral aryl-2,3-epoxyalkyl-ethers and the corresponding thio compounds thereof, and the use thereof as dopes in liquid-crystal phases
- 专利标题（中）： 手性芳基-2,3-环氧烷基醚及其相应的硫代化合物及其作为液晶相中的掺杂物的用途
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申请号： US104350申请日： 1987-10-02
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公开(公告)号： US4876028A公开(公告)日： 1989-10-24
- 发明人: Wolfgang Hemmerling , Hans-Rolf Dubal , Ingrid Muller , Dieter Ohlendorf , Rainer Wingen
- 申请人： Wolfgang Hemmerling , Hans-Rolf Dubal , Ingrid Muller , Dieter Ohlendorf , Rainer Wingen
- 申请人地址： DEX Frankfurt am Main
- 专利权人： Hoechst Aktiengesellschaft
- 当前专利权人： Hoechst Aktiengesellschaft
- 当前专利权人地址： DEX Frankfurt am Main
- 优先权： DEX3633968 19861006
- 主分类号： C07D405/12
- IPC分类号： C07D405/12 ; C07D409/12 ; C09K19/34 ; C09K19/58 ; G02F1/13
摘要：
The novel compounds are aryl-2,3-epoxyalkyl ethers or thioethers or the corresponding thiirane compounds having a mesogenic aromatic component and a chiral component having a three-membered heterocyclic ring, wherein, in the general formula (1), ##STR1## the symbols have the following meaning: R.sup.1 =straight-chain or branched (C.sub.1 -C.sub.12) alkyl, where one or two non-neighboring CH.sub.2 groups may be replaced by O or S atoms.A=diazine-2,5-diyl or diazine-3,6-diyl,X and Y=O and/or S, andR.sup.2, R.sup.3 and R.sup.4, independently of one another=H, straight-chain (C.sub.1 -C.sub.10) alkyl or branched (C.sub.3 -C.sub.10) alkyl, where R.sup.2, R.sup.3 and R.sup.4 are not simultaneously H.The compounds are preferably employed in tilted smectic liquid-crystal phases which they convert into ferroelectric liquid-crystal phases; they have high values for spontaneous polarization or they induce high values for spontaneous polarization.