Imidazole → HCID 23001298, compound

Participants

Reaction Steps

A solution of 2-bromo-5-hydroxybenzaldehyde (4.66 g, 23.2 mmol), tert-butyldiphenylchlorosilane (7.73 mL, 30.6 mmol), and imidazole (2.37 g, 34.8 mmol) in DMF (50 mL) was stirred at 25° C. for 12 hours and 60° C. for 12 hours. The solvent was removed in vacuo and the residue partitioned between methylene chloride (100 mL) and saturated aqueous sodium bicarbonate (100 mL). The layers were separated and the aqueous layer was extracted with methylene chloride (3×100 mL). The combined organic layers were dried over sodium sulfate, filtered, and concentrated in vacuo. The crude product was purified by column chromatography (10% ethyl acetate/hexane) to provide the title compound as a yellow oil.

Provenance & Evidence