Spontaneous Orientation Aids For Liquid Crystal Compositions
A liquid crystal composition and orientation technology, which can be used in liquid crystal materials, instruments, chemical instruments and methods, etc., can solve problems such as large costs, and achieve the effect of excellent preservation
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[0603] Hereinafter, the present invention will be described in more detail based on examples, but the present invention is not limited to the examples.
Synthetic example 1
[0604] (Synthesis Example 1: Synthesis of 2-methacrylic acid=3-fluoro-4'-[11-(oxirane-2-ylmethoxy)undecyloxy]biphenyl-4-yl ester )
[0605] In a reaction vessel equipped with a stirring device, a cooler, and a thermometer, 38 g (155 mmol) of 3-fluoro-4-benzyloxyphenylboronic acid and 30.5 g (150 mmol) of 4-bromo-2-fluorophenol were charged. mol), potassium carbonate 32g (232 mmol), tetrakistriphenylphosphine palladium 1.8g, tetrahydrofuran 200ml, pure water 100ml, react at 70°C for 5 hours. After the reaction was completed, it was cooled, and after adding 10% hydrochloric acid, the target substance was extracted with ethyl acetate. The organic layer was washed with water and saturated brine, and the solvent was distilled off. Thereafter, it was dispersed and washed with toluene, and purified with an alumina column to obtain 39 g of the compound represented by the formula (1).
[0606] [chem 85]
[0607]
[0608] Then, in a reaction vessel equipped with a stirring device, ...
Synthetic example
[0620] (Synthesis example: 2-methacrylic acid=3',5'-difluoro-4'-[11-[(3-methyloxetan-3-yl)methoxy]undecyloxy base] biphenyl-4-yl ester)
[0621] In a reaction vessel equipped with a stirring device, a cooler, and a thermometer, 35 g (155 mmol) of 4-benzyloxyphenylboronic acid and 29.3 g (140 mmol) of 4-bromo-2,5-fluorophenol were charged , 32 g (232 mmol) of potassium carbonate, 1.8 g of tetrakistriphenylphosphine palladium, 200 ml of tetrahydrofuran, and 100 ml of pure water were reacted at 70° C. for 5 hours. After the reaction was completed, it was cooled, and after adding 10% hydrochloric acid, the target substance was extracted with ethyl acetate. The organic layer was washed with water and saturated brine, and the solvent was distilled off. Thereafter, it was dispersed and washed with toluene, and purified with an alumina column to obtain 37 g of the compound represented by the formula (5).
[0622] [chem 89]
[0623]
[0624] Then, in a reaction vessel equipped w...
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