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ChemicalBook CAS DataBase List 5-Acetamido-2-bromo-1,3-difluorobenzene
541539-64-4

5-Acetamido-2-bromo-1,3-difluorobenzene synthesis

2synthesis methods
-

Yield:541539-64-4 88%

Reaction Conditions:

at 0; for 0.5 h;

Steps:

1 Step 1:

4-Bromo-3,5-difluoro-phenylamine (5 g, 24.02 mmol) was treated with acetic anhydride (2.26 ml, 24.02 mmol) at 0 °C for 30 mins. After completion of the reaction as ensured from TLC, the reaction mixture was poured in ice water, the precipitated solids were filtered off and were washed washed thoroughly with water to afford N-(4- bromo-3,5-difluorophenyl)acetamide (5.3 g, 88%) as a solid

References:

WO2021/144440,2021,A1 Location in patent:Page/Page column 30

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