Category: 1346674-69-8

Reference of 1346674-69-8 ,Some common heterocyclic compound, 1346674-69-8, molecular formula is C7H5Br2FO, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc., below Introduce a new synthetic route.

A 500-mL single-neck round-bottomed flask equipped with a magnetic stirrer and nitrogen inlet was charged with 197b (23.0 g, 81.0 mmol), triethylamine (25.0 g, 247 mmol) in anhydrous methylene chloride (100 mL). Acetic anhydride (10.0 g, 98.0 mmol) was added and this mixture was stirred at room temperature for 16 h. After this time, the mixture was diluted with methylene chloride (100 mL) and washed with saturated aqueous sodium bicarbonate (100 mL). The layers were separated and the aqueous layer was extracted with methylene chloride (2 x 20 mL). The organic extracts were combined and dried over sodium sulfate. The drying agent was removed by filtration. The filtrate was concentrated under reduced pressure, and the resulting residue was purified by flash column chromatography (silica, 0% to 50% ethyl acetate/hexanes) to afford 197c in 87% yield (23.0 g) as a white solid.

In the field of chemistry, the synthetic routes of compounds are constantly being developed and updated. I will also mention this compound in other articles. 1346674-69-8, (2,6-Dibromo-4-fluorophenyl)methanol, other downstream synthetic routes, hurry up and to see.

Reference:
Patent; GILEAD CONNECTICUT, INC.; GENENTECH, INC.; BARBOSA, Antonio, J., M.; BLOMGREN, Peter, A.; CURRIE, Kevin, S.; KRISHNAMOORTHY, Ravi; KROPF, Jeffrey, E.; LEE, Seung H.; MITCHELL, Scott A.; ORTWINE, Daniel; SCHMITT, Aaron, C.; WANG, Xiaojing; XU, Jianjun; YOUNG, Wendy; ZHANG, Honglu; ZHAO, Zhongdong; ZHICHKIN, Pavel E.; WO2011/140488; (2011); A1;,
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Electric Literature of 1346674-69-8, The major producers of chemicals have been the Europe, Japan and China. Due to the growing call for a cleaner, greener environment, people will have to find innovative ways to maintain their relevance. Here is a compound 1346674-69-8, name is (2,6-Dibromo-4-fluorophenyl)methanol. This compound has unique chemical properties. The synthetic route is as follows.

Example 104m 2,6-Dibromo-4-fluorobenzyl Acetate 104m To a solution of (2,6-dibromo-4-fluorophenyl)methanol (1041) (20 g, 71 mmol) in CH2Cl2 (500 mL) at 0 C. was added pyridine (8.4 g, 107 mmol) and acetyl chloride (8.3 g, 107 mmol). The mixture was stirred at room temperature for 5 h. TLC showed the start material disappeared. The reaction was evaporated in vacuum and the residue was purified by silica-gel column chromatography eluting with petroleum ether/ethyl acetate (from 50:1 to 20:1) to give 104m as a white solid (20 g, 87%). MS: [M-Oac]+ 267. 1H NMR (500 MHz, CDCl3) delta 7.36 (d, J=7.5, 2H), 5.38 (s, 2H), 2.10 (s, 3H)

While traditionally a conservative industry, chemical producers will need to modernize their PR strategies to stay relevant.we look forward to future research findings about 1346674-69-8, (2,6-Dibromo-4-fluorophenyl)methanol.

Reference:
Patent; GENENTECH, INC.; Crawford, James John; Young, Wendy B.; US2013/116245; (2013); A1;,
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts