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. 27139-97-5, name is 2-Bromo-4-chloro-1-methylbenzene, A new synthetic method of this compound is introduced below., 27139-97-5
To a suspension of magniesium (0.12 g) in THF (15 ml_) 2-bromo-4-chlorotoluene (0.125 g, commercially available) was added and the mixture stirred for a few minutes. Then a solution of 2-bromo-4-chlorotoluene (0.9 g) in THF (85 ml_) was added dropwise and the mixture stirred for 3h. The mixture was added dropwise to a solution of acetyl chloride(0.353 g) in THF (10 ml_) at 0 0C. The mixture was stirred at RT for 5h. Chilly water was added to the reaction mixture and the pH adjusted at pH 6 with HCI 10percent and the product extracted with EA. The organic phase was dried and the solvent evaporated under vacuum to give the title compound (0.676 g) that was used in next step without further purification.MS (m/z): 169 [MH]+
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; GLAXO GROUP LIMITED; WO2009/130231; (2009); A1;,
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