Water → HCID 23025715, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of 3-(6-bromobenzoxazol-2-yl)phenol (Compound of Example 272) (1.02 g) in N,N-dimethyl formamide (6 ml) were added 2-iodopropane (0.68 g) and potassium carbonate (0.63 g) at 50° C., and the mixture was stirred at 50° C. for 1.5 hour. To the mixture were further added 2-iodopropane (0.34 g) and potassium carbonate (0.31 g), and the mixture was further stirred at 50° C. for 1 hour. The reaction mixture was poured into water and extracted with ethyl acetate-tetrahydrofuran (3:1, v/v). The organic layer was washed with water and dried over MgSO4. The solvent was distilled off under reduced pressure, and the residue was subjected to silica gel column chromatography. The fraction eluted with ethyl acetate-hexane (1:20 to 1:6, v/v) was concentrated under reduced pressure to isolate 6-bromo-2-(3-isopropoxyphenyl)benzoxazole (896 mg, 77%).

Provenance & Evidence