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Compound, optical anisotropic body and liquid crystal display device

A display device and compound technology, applied in chemical instruments and methods, optics, organic chemistry, etc., can solve problems such as difficult large-scale production and application, long synthesis cycle, self-aggregation, etc., so as not to deteriorate and polymerize, and reduce synthesis cost , high storage stability effect

Inactive Publication Date: 2019-12-10
SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing synthesis methods of such materials are complicated, the synthesis period is long, toxic and harmful raw materials are used in the synthesis process, and the synthesis cost remains high, making it difficult to produce and apply on a large scale
The existing technology also has low stability, and is easy to deteriorate and self-aggregate during production, storage and transportation, which is not conducive to production, storage and transportation.

Method used

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  • Compound, optical anisotropic body and liquid crystal display device
  • Compound, optical anisotropic body and liquid crystal display device
  • Compound, optical anisotropic body and liquid crystal display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Compound shown in preparation formula I-a-4, structural formula is as follows,

[0051]

[0052] The synthetic route is:

[0053]

[0054] It specifically includes the following eight steps from Step I-a-4-1 to Step I-a-4-8, and I-a-4-1) will (9.5g, 38mmol) and (2.34g, 17mmol) Dissolve it in 100mL DMF and add it to a three-necked flask, then add (5.6g, 41mmol) potassium carbonate and heat to 80°C, keep it warm for 3 hours, cool down, filter the reaction solution, add toluene to the filter cake and pass it through a silica gel column to obtain a light yellow liquid, evaporate Dry solvent, petroleum ether beating product, obtained (4.5g, 11mmol) Yield: 65%;

[0055] I-a-4-2) will (5g, 11.2mmol) Dissolve in 100mL tetrahydrofuran and 25mL water and add to a three-neck flask, then add (0.67g, 17mmol) lithium hydroxide, heat to reflux, reflux for 2 hours, cool down, pour the reaction solution into dilute hydrochloric acid aqueous solution, and extract with ethyl...

Embodiment 2

[0062] Compound shown in preparation formula I-b-2, structural formula is as follows,

[0063]

[0064] The synthetic route is:

[0065]

[0066] It specifically includes the following eight steps from Step I-b-2-1 to Step I-b-2-8, and I-b-2-1) will (10g, 38mmol) and (2.34g, 17mmol) Dissolve it in 100mL DMF and add it to a three-necked flask, then add (5.6g, 41mmol) potassium carbonate and heat to 80°C, keep it warm for 3 hours, cool down, filter the reaction solution, add toluene to the filter cake and pass it through a silica gel column to obtain a light yellow liquid, evaporate Dry solvent, petroleum ether beating product, obtained (5.7g, 12mmol) Yield: 76%;

[0067] I-b-2-2) will (5g, 10.5mmol) Dissolve it in 100mL tetrahydrofuran and 25mL water and add it to a three-neck flask, then add (0.4g, 15.8mmol) lithium hydroxide, heat to reflux, reflux for 2 hours, cool down, pour the reaction solution into dilute hydrochloric acid aqueous solution, ethyl acetate T...

Embodiment 3

[0076] The compound shown in the preparation formula I-c-6, the structural formula is as follows,

[0077]

[0078] The synthetic route is:

[0079]

[0080] Specifically including the following steps I-c-6-1 ~ step I-c-6-7 a total of seven steps, I-c-6-1) will (10.5g, 38mmol) and (2.34g, 17mmol) Dissolve it in 100mL DMF and add it to a three-necked flask, then add (5.6g, 41mmol) potassium carbonate and heat to 80°C, keep it warm for 3 hours, cool down, filter the reaction solution, add toluene to the filter cake and pass it through a silica gel column to obtain a light yellow liquid, evaporate Dry solvent, petroleum ether beating product, obtained (6g, 12mmol) Yield: 70%;

[0081] I-c-6-2) will (5.6g, 11.2mmol) Dissolve in 100mL tetrahydrofuran and 25mL water and add to a three-neck flask, then add (0.67g, 17mmol) lithium hydroxide, heat to reflux, reflux for 2 hours, cool down, pour the reaction solution into dilute hydrochloric acid aqueous solution, and extra...

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PUM

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Abstract

The invention relates to a compound, an optical anisotropic body and a liquid crystal display device. The invention discloses a compound having a polymerizable group and represented by the formula I,wherein A1 and A2 can independently represent alkyl group with the carbon atom number of 3-10, alkenyl group with the carbon atom number of 4-10, or alkoxy group with the carbon atom number of 3-10, any -CH2- is optionally replaced by -O-, and any hydrogen is optionally replaced by F; Z1 and Z2 respectively independent represent -COO-, -CO-, -CH2COO-, -COOCH2-, -CH2CH2COO- or -COOCH2CH2-; n and mare independently respectively 1, 2 or 3. The polymerizable compound provided by the invention has excellent optical performance and excellent mutual solubility, has good stability, is not easy to deteriorate and polymerize in the production and storage process, has low cost and simple production, and is prone to large-scale commercial application thereof.

Description

technical field [0001] The invention relates to the field of liquid crystal compounds, in particular to a liquid crystal compound with a polymerizable group, an optically anisotropic body and a liquid crystal display device. Background technique [0002] Currently, compounds having polymerizable groups (polymerizable compounds) are used in various optical materials; Polymers, such polymers can be used in polarizing plates, retardation plates, etc. required for displays. In most cases, in order to meet the required optical characteristics, polymerization speed, solubility, melting point, glass transition temperature, transparency of the polymer, mechanical strength, surface hardness, heat resistance and light resistance, a combination of two or more polymers is used. A polymeric composition of sexual compounds. In this case, the polymerizable compound used is required to impart good physical properties to the polymerizable composition without adversely affecting other prope...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D277/82C08F122/24C09K19/34C09K19/38C09K19/46G02F1/1333
CPCC07D277/82C09K19/3497C09K19/3861C09K19/46C08F122/24G02F1/1333
Inventor 赵磊孟劲松李明魏天宇员国良梁志安
Owner SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIALS CO LTD