发明名称 |
Optically active naphthalene derivative, process for preparation thereof, liquid crystal composition containing the same as effective component, and liquid crystal element using the same |
摘要 |
Optically active naphthalene derivatives including optically active naphthylcarboxylic acid derivative, hydroxynaphthalene derivative, alkoxynaphthylalkanol derivative and alkylnaphthylalkanol derivative have the following structural formula: <IMAGE> wherein R1 denotes an alkyl group of 3-20 carbon atoms, R2 denotes an alkyl group of 1-20 carbon atoms optionally substituted with halogen atom(s) or an alkoxyalkyl group of 2-20 carbon atoms optionally substituted with halogen atom(s), X denotes -COO- or -OCO-, k, l and m denotes 0 or 1 respectively, n denotes an integer of 0-6, p denotes 0 or 1, and the asterisk indicates an asymmetric carbon atom, with the proviso that when k is 0, l and m are not 1 at the same time, and when k is 1, m is 1, and when n is 0 and m is 1, X is -COO-. These optically active naphthalene derivatives are useful as a ferroelectric liquid crystal materials or its component having a sufficient spontaneous polarization and by which a high speed response is possible and which further exhibits a ferroelectric liquid crystal phase in a temperature region around room temperature. Processes for the preparation of the optically active derivatives are also disclosed.
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申请公布号 |
US5422038(A) |
申请公布日期 |
1995.06.06 |
申请号 |
US19930166155 |
申请日期 |
1993.12.14 |
申请人 |
SUMITOMO CHEMICAL COMPANY, LIMITED |
发明人 |
TODA, SHOJI;HIGASHII, TAKAYUKI;KURIMOTO, ISAO;MINAI, MASAYOSHI;SEKINE, CHIZU;TANI, TAKESHI;FUJISAWA, KOICHI |
分类号 |
G02F1/13;C07C33/18;C07C33/20;C07C41/16;C07C43/164;C07C43/178;C07C43/20;C07C43/205;C07C43/23;C07C45/59;C07C45/67;C07C45/71;C07C65/24;C07C67/08;C07C67/10;C07C67/14;C07C69/007;C07C69/017;C07C69/76;C07C69/773;C07C69/92;C09K19/32;(IPC1-7):C09K19/32;C09K19/52;C07C39/14 |
主分类号 |
G02F1/13 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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