948044-01-7Relevant academic research and scientific papers
Liquid crystal compound containing dimethylbenzene and difluoromethylenedioxy linking group and application thereof
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Paragraph 0088-0092; 0097; 0148; 0151-153; 0157; 0160; ..., (2021/09/01)
The invention discloses a liquid crystal compound containing a dimethylbenzene and difluoromethyleneoxy linking group and application of the liquid crystal compound. The compound is as shown in formula I. In the molecular structure of the compound as show
Synthetic method of directly coupling aryl halide by aromatic hydrocarbon Grignard reagent in the presence of recycled modified palladium-charcoal
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Paragraph 0012; 0013; 0014, (2016/10/08)
The invention provides a synthetic method of directly coupling aryl halide by an aromatic hydrocarbon Grignard reagent. The synthetic method includes performing reflux and water separation of a catalyst Pd/C and an azeotropic organic solvent of non-halogenated hydrocarbon and water, adding an organic phosphine ligand, performing a complexation reaction to obtain a catalyst organic phosphine ligand complexing Pd/C, using aryl halide as an initial material, performing a Grignard reaction at 10-90 DEG C to obtain a Grignard reagent, adding the catalyst, performing a coupled reaction of aryl halide and the Grignard reagent to obtain a coupling aromatic hydrocarbon. The synthetic method uses one-step method, has low synthesis cost, is green and environmental friendly, and is a high-efficiency and clean synthetic technology of coupling aryl halide.
ANTIOXIDANT, LIQUID CRYSTAL COMPOSITION, AND DISPLAY ELEMENT
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Paragraph 0155; 0156, (2016/10/08)
PROBLEM TO BE SOLVED: To provide a compound and a composition giving such properties to a liquid crystal display element that when the liquid crystal display element is irradiated with UV rays, a voltage holding ratio of the display element hardly decreas
POLYMERIZABLE COMPOUND AND OPTICAL ANISOTROPIC BODY
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Paragraph 0108; 0109, (2016/10/09)
PROBLEM TO BE SOLVED: To provide a polymerizable compound that prevents the occurrence of crystal deposition or the like when added to a polymerizable composition and has high storage stability. SOLUTION: This invention provides a compound represented by general formula (I), specifically, a compound of the following structure. This invention also provides a composition comprising the compound, a polymer obtained by polymerization of the composition and an optical anisotropic body using the polymer. COPYRIGHT: (C)2015,JPOandINPIT
COMPOUND HAVING 2-FLUOROPHENYLOXYMETHANE STRUCTURE
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Paragraph 0121, (2014/09/30)
The present invention relates to a compound having a 2-fluorophenyloxymethane structure and useful for organic electronic materials and medical and agricultural chemicals, particularly materials for liquid crystal display elements. A problem to be solved
LIQUID CRYSTALLINE COMPOUND, LIQUID CRYSTAL COMPOSITION, LIQUID CRYSTAL DISPLAY ELEMENT
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Page/Page column 46-47, (2009/12/07)
The invention provides a liquid crystal compound which has stability to heat, light and so forth, shows liquid crystal phases in a wide temperature range, and has a small viscosity, an appropriate optical anisotropy, a large dielectric anisotropy, and an
