303186-20-1 Usage
Description
4-difluoro(3,4,5-trifluorophenoxy)-methyl]-3,5-difluoro-4'-propyl-1,1'-biphenyl is a white crystalline liquid crystal compound characterized by a difluoromethyleneoxy linkage group. This unique molecular structure endows it with specific properties that make it suitable for various applications, particularly in the field of display technology.
Uses
Used in Display Technology Industry:
4-difluoro(3,4,5-trifluorophenoxy)-methyl]-3,5-difluoro-4'-propyl-1,1'-biphenyl is used as a liquid crystal material for active-matrix displays. Its difluoromethyleneoxy linkage group provides enhanced performance and stability, making it an ideal component for creating high-quality displays with improved resolution, color reproduction, and contrast. This application takes advantage of the compound's unique chemical properties to deliver superior visual experiences in electronic devices such as smartphones, tablets, and televisions.
Preparation
The preparation of?4-*difluoro(3,4,5-trifluorophenoxy)-methyl]-3,5-difluoro-4'-propyl-1,1'-biphenyl is as follows:In a fluororesin container 3,5-Difluoro-4'-propylbiphenyl-4-thionocarboxylic acid 3,4,5-trifluorophenyl ester (1.65 g, 3.9 mmol), ethyl acetate (10 mL) was added, Further, iodine pentafluoride (IF 5) (0.86 g, 3.9 mmol),And triethylamine · trihydrofluoride salt (NEt3 - 3HF)(0.62 g, 3.9 mmol), and the mixture was stirred at 65 ° C. for 6 hours. After stopping the reaction with an alkali, the organic layer was distilled off under reduced pressure, and the residue was purified by silica gel column chromatography and recrystallization to obtainTo obtain 4- [difluoro- (3,4,5-trifluorophenoxy) -methyl] -3,5-difluoro-4'-propylbiphenyl (1.50 g, 3.5 mmol). The isolation yield was 90%, and the purity was 99.88%.
Check Digit Verification of cas no
The CAS Registry Mumber 303186-20-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,0,3,1,8 and 6 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 303186-20:
(8*3)+(7*0)+(6*3)+(5*1)+(4*8)+(3*6)+(2*2)+(1*0)=101
101 % 10 = 1
So 303186-20-1 is a valid CAS Registry Number.
303186-20-1Relevant articles and documents
oxygen ether bridge bond containing two difluoromethane (CF 2 O) of the method for the preparation of monomer liquid crystal compound
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, (2016/10/10)
The invention provides a preparation method of a CF2O-contained monomer liquid crystal compound. The preparation method comprises the following steps of (1) with a compound with a structure as shown in the formula I as a raw material, reacting under the catalytic action of a zinc reagent and copper salt and in the existence of a solvent to generate a compound with a structure as shown in the formula II; (2) enabling the compound with the structure as shown in the formula II and a fluorinated reagent to be subjected to fluoridation in the existence of the solvent to generate a compound with a structure as shown in the formula III; (3) enabling the compound with the structure as shown in the formula III and boric acid as shown in the formula IV to be subjected to SUZUKI coupled reaction in the existence of the solvent to obtain the CF2O-contained monomer liquid crystal compound with a structure as shown in the formula V, wherein the CF2O-contained monomer liquid crystal compound with a structure as shown in the formula V is as shown in the specification.
LIQUID CRYSTAL COMPOUND HAVING DIFLUOROPROPENYLENEOXY BONDING GROUP
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Page/Page column 57, (2012/02/06)
The invention provides a liquid crystal compound having general physical properties necessary for the compound, namely stability to heat, light and so forth, a wide temperature range of a liquid crystal phase, a high clearing point, a good compatibility w