发明名称 |
Novel optically active benzene derivatives, process for producing the same and liquid-crystalline substances containing said derivatives as active ingredient and optical switching elements. |
摘要 |
<p>Disclosed are novel active benzene derivatives represented by the general formula (I): <CHEM> (wherein X represents -COO-, -OCO-, -CH2O- or -OCH2-; A represents a hydrogen atom, a halogen atom or an alkyl or alkoxyl group having 1 to 20 carbon atoms; R represents an alkyl group having 1 to 20 carbon atoms; l and m each represents a number of 1 or 2, n represents a number of 0 or 1, but when n is 0 the sum of l and m is 3 or less; and * indicates asymmetric carbon atom), a process for producing the same, liquid-crystalline substances containing said derivatives as active ingredient, and optical switching elements utilizing the liquid crystal compositions containing said liquid-crystalline substances.</p> |
申请公布号 |
EP0284371(A2) |
申请公布日期 |
1988.09.28 |
申请号 |
EP19880302567 |
申请日期 |
1988.03.23 |
申请人 |
SUMITOMO CHEMICAL COMPANY, LIMITED |
发明人 |
HIGASHII, TAKAYUKI;MINAI, MASAYOSHI |
分类号 |
C07C69/773;C09K19/12;C09K19/20;C12P7/22;C12P7/62;C12P41/00 |
主分类号 |
C07C69/773 |
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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