Alkylcyclohexyl multiple-fluorine biphenyl derivative and its preparation method and uses |
Title： |
| Alkylcyclohexyl multiple-fluorine biphenyl derivative and its preparation method and uses |
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Application Number： |
200510109068 |
Application Date： |
2005/10/17 |
Announcement Date： |
2006/04/26 |
Pub. Date： |
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Publication Number： |
1762946 |
Announcement Number： |
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Grant Date： |
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Granted Pub. Date： |
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ApplicationType： |
Invention |
State/Country： |
11[China|beijing] |
IPC： |
C07C 41/22, C07C 43/247 |
Applicant(s)： |
Tsinghua University |
Inventor(s)： |
Liang Xiao, Tang Hong, Zhang Wei, Zhang Baizhe |
Key Words： |
Alkylcyclohexyl, multiple-fluorine biphenyl, derivative, preparation method, uses |
Abstract： |
The present invention discloses the preparation process and application of derivative alkyl cyclohexyl diphenyl polyfluoride. The derivative alkyl cyclohexyl diphenyl polyfluoride is used as liquid crystal material. It has methoxyl radical with small volume, small dipole moment and average dipole direction in major molecular axis direction introduced to the side of its diphenyl ring, and thus has increased dielectric anisotropy in the major molecular axis direction, lowered melting point and increased dissolubility. In addition, the multiple fluorine atoms are favorable to the increase of the dielectric anisotropy and the decrease of liquid crystal driving voltage. Therefore, the derivative of the present invention has excellent application foreground in LCD field. |
Claim： |
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PCT： |
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