Carbon tetrabromide → N-(4-{2-[4-(2-bromoethyl)phenyl]ethyl}thiazol-2-yl)acetamide

Beteiligte Stoffe

Reaktionsschritte

To a suspension of N-(4-{2-[4-(2-hydroxyethyl)phenyl]ethyl}-1,3-thiazol-2-yl)acetamide (1.452 g, 4.998 mmol) in anhydrous dichloromethane (60 ml) were added carbon tetrabromide (2.001 g, 6.035 mmol) and triphenylphosphine (1.571 g, 5.989 mmol) and the mixture was stirred at room temperature for 3 hr. The reaction mixture was concentrated under reduced pressure and the residue was purified by silica gel column chromatography (BW-300SP 10 g, ethyl acetate:hexane=2:3→1:1) to give N-(4-{2-[4-(2-bromoethyl)phenyl]ethyl}-1,3-thiazol-2-yl)acetamide (1.553 g, 4.396 mmol, yield 88.0%) as a white solid.

Herkunft & Nachweise