Category: 105942-08-3

Researchers who often do experiments know that organic synthesis is a process of preparing more complex target molecules from simple raw materials through one or more chemical reactions. Generally, it requires fewer steps, and cheap raw materials. 105942-08-3, name is 4-Bromo-2-fluorobenzonitrile, A new synthetic method of this compound is introduced below., Computed Properties of C7H3BrFN

a 4-Bromo-2-methoxybenzonitrile A suspension of potassium methoxide (4.24 g, 60.0 mmol) in tetrahydrofuran (40 mL) was added in portions to a solution of 4-Bromo-2-fluorobenzonitrile (8.0 g, 40.0 mmol) in tetrahydrofuran (50 mL) at -50¡ã C. After one hour, the dry ice bath was removed and the reaction mixture was allowed to warm up to room temperature and stirred at room temperature for 6 hours. The reaction mixture was poured onto water (250 mL) and the solid was collected by filtration to give 4-bromo-2-methoxybenzonitrile (7.85 g, 92percent). 1H NMR (DMSO-d6) delta 3.94(s, 3H), 7.32 (d, J=8.23 Hz, 1H), 7.15 (s, 1H), 7.69 (d, J=8.23 Hz, 1H).

The basis of chemical reaction formula synthesis, the synthesis route is composed of some specific reactions and combined according to certain logical thinking. We look forward to the emergence of more reaction modes in the future.

Reference:
Patent; Abbott Laboratories; US2002/156081; (2002); A1;,
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

105942-08-3, In the chemical reaction process, reaction time, type of solvent, can easily affect the result of the reaction, thereby determining the yield and properties of the reaction product. An updated downstream synthesis route of 105942-08-3 as follows.

Step 1: To a three-necked flask equipped with a Dean-Stark separator was charged phenol (6.17 g, 65.63 mmol), potassium carbonate (17.28 g, 125 mmol), DMF (62.5 mL) and toluene (62.5 mL) under a nitrogen atmosphere. After refluxing for 4 hours, dehydration treatment was carried out until it was confirmed that no water was produced in the system. Thereafter, toluene (50 mL) was removed using a Dean-Stark separator. After returning to room temperature, 12.5 g of 4-bromo-2-fluorobenzonitrile (62.6 mmol) was added, and the mixture was refluxed under nitrogen for 4 hr. After completion of the reaction, 100 mL of toluene was added to the solution to dilute the solution, and the solution was filtered through celite, and the obtained filtrate was washed twice with a sep. funnel, dried over anhydrous magnesium sulfate, filtered, and evaporated under reduced pressure. The solvent is obtained to obtain a crude crystal product, which is purified by a column to obtain an intermediate.

According to the analysis of related databases, 105942-08-3, the application of this compound in the production field has become more and more popular.

Reference:
Patent; Beijing Normal University; Dong Yongqiang; Xiang Xueqin; (13 pag.)CN108997299; (2018); A;,
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts