Imidazole → HCID 10497685, compound

Participants

Reaction Steps

A solution of 3-bromovanillin (1.16 g, TCI) in anhydrous DMF (20 ml) was added with imidazole (408 mg, TCI), added dropwise with a solution of 4-(N,N-dimethylamino)pyridine (25 mg) and t-butyldimethylsilyl chloride (904 mg, TCI) in DMF (15 ml) under ice cooling, stirred 30 minutes, then warmed to room temperature, and further stirred 3 hours. The reaction mixture was added with water (100 ml), and extracted with ethyl acetate (100 ml). The organic layer was washed with saturated brine and dried, and then the solvent was evaporated under reduced pressure. The residue was purified by flash column chromatography (hexane:ethyl acetate=9:1) to obtain the title compound (Intermediate 16, 1.75 g).

Provenance & Evidence