发明授权
- 专利标题： Fluorinated heterocycles and their use in liquid-crystal mixtures
- 专利标题（中）： 氟化杂环及其在液晶混合物中的应用
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申请号： US11117280申请日： 2005-04-28
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公开(公告)号： US07255900B2公开(公告)日： 2007-08-14
- 发明人: Wolfgang Schmidt , Rainer Wingen , Barbara Hornung
- 申请人： Wolfgang Schmidt , Rainer Wingen , Barbara Hornung
- 申请人地址： DE Darmstadt
- 专利权人： Merck Patent GmbH
- 当前专利权人： Merck Patent GmbH
- 当前专利权人地址： DE Darmstadt
- 代理机构： Millen, White, Zelano & Branigan, P.C.
- 优先权： DE102004021691 20040430
- 主分类号： C09K19/34
- IPC分类号： C09K19/34 ; C09K19/32 ; C09K19/42 ; C07D307/91 ; C07C23/18
摘要：
In the compound of the formula (I), where: R1, R2 are each independently, for example, H or a straight-chain or branched alkyl radical p, q are each independently 0 or 1, i.e. at the value zero, —H is present at the appropriate position instead of —F M1 is —CO—O—, —O—CO—, —CH2—O—, —O—CH2—, —CF2—O—, —O—CF2—, —CH═CH—, —CF═CF—, —C≡C—, —CH2—CH2—CO——O—, —O—CO—CH2—CH2—, —CH2—CH2—, —CF2—CF2—, —(CH2)4—, —OC(═O)CF═CF— or a single bond A1 is, for example, 1,4-phenylene R5 has the same possible definitions as specified for R1 and R2, with the exception of —M1—A1—R5, but independently of the definition of R1 and R2 X is H, F, OF3, CF3, OCF2H with the following provisos: a) at least one of p, q has to be 1 b) R1 and R2 must not at the same time be H c) R2 and X must not at the same time be H.
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