Preparation of 2,6-difluorobenzoyl chloride_Kain Industrial Additive
Background and overview[1][2] 2,6-Difluorobenzoyl chloride can be used as an intermediate for pharmaceutical and chemical synthesis. If 2,6-difluorobenzoyl chloride is inhaled, move the patient to fresh air; if the skin comes into contact, take off contaminated clothing, rinse the skin thoroughly with soap and water, and seek medical attention if you feel uncomfortable; if the eye contact If exposed to sunlight, separate eyelids, rinse with running…
Preparation of 2,3-difluorophenyl acetic acid_Kain Industrial Additive
Background and overview[1] 2,3-Difluorophenylacetic acid is a widely used pharmaceutical intermediate and an important raw material for the preparation of new liquid crystals. It has huge market demand and broad prospects. Preparation[1] In the synthesis strategy of 2,3-difluorophenylacetic acid, due to the particularity of its structure, for example, it is planned to attach a group to the carbon next to the fluorine atom and use the…
Preparation of 2,3,4,5-tetrahydro-1H-benzo[d]azepine_Kain Industrial Additive
Background and overview[1][2] 2,3,4,5-Tetrahydro-1H-benzo[d]azepine (hydrochloride), CAS number 4424-20-8, chemical formula C10H13N. Molecular weight 147.21700. Density 0.981g/cm3, boiling point 258.8ºC at 760 mmHg, flash point 114.9ºC, refractive index 1.53. 2,3,4,5-Tetrahydro-1H-benzo[d]azepine (hydrochloride) is available Used as pharmaceutical and chemical synthesis intermediates. If 2,3,4,5-tetrahydro-1H-benzo[d]azepine (hydrochloride) is inhaled, move the patient to fresh air; in case of skin contact, remove contaminated clothing and use Rinse skin thoroughly with soap and…
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Preparation of 2,4-difluorobenzaldehyde_Kain Industrial Additive
Background and overview[1][2] 2,4-Difluorobenzaldehyde (DFBA for short) is a widely used organic synthesis intermediate and can be used in the synthesis of medicines, pesticides, dyes and fluorine-containing functional materials. The current methods for synthesizing 2,4-difluorobenzaldehyde mainly include: using 2,4-dichlorobenzaldehyde as raw material and fluorinating it with potassium fluoride to prepare 2,4-difluorobenzaldehyde; Nitrotoluene is used as raw material, and 2,4-difluorotoluene is obtained through reduction, diazotization and fluorination.…
Preparation of 2,3-dichloroaniline_Kain Industrial Additive
Background and overview[1][2] 2,3-Dichloroaniline is an important organic raw material intermediate. 2,3-Dichloroaniline is widely used in fine chemical industries such as pesticides, medicines, dyes and photosensitive materials. Regarding the synthesis line of 2,3-dichloroaniline, it mainly uses 2,3-dichloronitrobenzene as the raw material. Some studies have mentioned that tungsten carbide is used as the catalyst and hydrogenation reduction is obtained. The main problem is that the hydrogenation process…
Preparation of 2,6-dichlorofluorobenzene_Kain Industrial Additive
Background and overview[1][2] 2,6-Dichlorofluorobenzene, pure product, is a white crystal with a melting point of 37-40°C and a boiling point of 168-169°C. It is an important intermediate for the synthesis of fluoroquinolones and pesticides. The synthesis of 2,6-dichlorofluorobenzene currently mostly adopts the method of using 2,6-dichloroaniline as raw material through diazotization and thermal decomposition: the process route of this method is mature and the yield is…
Preparation of 2,4-dibromoanisole_Kain Industrial Additive
Background[1] 2,4-Dibromoanisole, the English name is 2,4-Dibromoanisole; Benzene, 2,4-dibromo-1-methoxy-; 2,4-dibromo-1-methoxybenzene, molecular formula: C7H6Br2O, molecular weight 265.9299, the crystal is light beige crystalline powder. 2,4-Dibromoanisole is a very important intermediate in organic synthesis and chemical industry, and can be widely used in laboratory research and development and pharmaceutical research and development processes. 2,4-Dibromoanisole Preparation [1] After adding 2,4-dibromofluorobenzene (20.0g, 0.08mol, 1eq.) and anhydrous DMF (350 mL) to…
Preparation of 2,3-dichloroaniline_Kain Industrial Additive
Background and overview[1][2] 2,3-Dichloroaniline is an important organic raw material intermediate. 2,3-Dichloroaniline is widely used in fine chemical industries such as pesticides, medicines, dyes and photosensitive materials. Regarding the synthesis line of 2,3-dichloroaniline, it mainly uses 2,3-dichloronitrobenzene as the raw material. Some studies have mentioned that tungsten carbide is used as the catalyst and hydrogenation reduction is obtained. The main problem is that the hydrogenation process…
Preparation of 2,6-difluoro-3-methoxyphenylboronic acid_Kain Industrial Additive
Background and overview[1] 2,6-Difluoro-3-methoxyphenylboronic acid can be used as a pharmaceutical synthesis intermediate. If 2,6-difluoro-3-methoxyphenylboronic acid is inhaled, move the patient to fresh air; if skin contact occurs, remove contaminated clothing and rinse skin thoroughly with soap and water. If discomfort occurs , seek medical attention; if eye contact occurs, separate eyelids, rinse with running water or saline, and seek medical attention immediately; if ingested, rinse…
Preparation of 2,6-difluoro-p-methoxybenzonitrile_Kain Industrial Additive
Background and overview[1] Because liquid crystals have many unique properties, they are increasingly used in information display technology and the chemical industry. Replacing one or two hydrogens in the liquid crystal core with fluorine atoms can effectively reduce the viscosity of the liquid crystal and improve the chemical and photostability. Using fluorine atoms to replace the atoms on the flexible side chains connected to both ends…
