The important role of 313735-62-5

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.

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. 313735-62-5, name is 4-Bromo-1-isopropylpyrazole, A new synthetic method of this compound is introduced below., Computed Properties of C6H9BrN2

4-bromo-1-(isopropyl)-1H-pyrazole (551 mg, 2.91 mmol) was dissolved in dry THF (7 mL) at -78 C under nitrogen and was stirred for 10 min. n-BuLi (2.5 M in hexanes, 1.45 mL, 3.06 mmol) was added drop wise to the solution was stirred for 2 h at -78 C. After two hours, ethyl fluoroacetate (0.33mL, 3.49 mmol) was added drop wise and stirred for 1 min at -78 C upon which the mixture was then quenched with NH4Cl (20 mL) and warmed to room temp. The mixture was then extracted with ether (50 mL), and dried over MgSO4. After concentration in vacuo (note: removeshortly after the ether is removed, because the compound is quite volatile), the residue waspurified with flash chromatography over silica gel (hexane: ethyl acetate = 80:20) to yield theproduct as a yellow solid in 20% yield (0.10 g)

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.