Potassium Carbonate → HCID 67135683, compound

Participants

Reaction Steps

1.45 g (corresponding to 5.0 mmol) of 6-bromo-2-(4′-hydroxyphenyl)imidazo[1,2-a]pyridine that was sufficiently dried to remove moisture was dissolved in 50 mL of N,N-dimethylformamide, and 2.07 g (corresponding to 15.0 mmol) of potassium carbonate was added thereto. The mixture was supplemented with 680 μL (corresponding to 7.5 mmol) of 3-bromo-1-propanol, and then the solution was stirred at room temperature for 17 hours. After the completion of the reaction, the reaction solution was poured into water and extracted three times with chloroform. The combined chloroform layer was washed with a saturated sodium chloride solution, dried over anhydrous sodium sulfate, filtered and concentrated. The resulting crude product was recrystallized from methanol to obtain 1.28 g (corresponding to 3.67 mmol) of 6-bromo-2-[4′-(3″-hydroxypropoxy)phenyl]imidazo[1,2-a]pyridine (FIG. 11, Step 3).

Provenance & Evidence