反应详情

Prepare a cold (0° C.) solution of 5-phenylthiazole-4-carboxylic acid ethyl ester (3.0 g, 12.9 mmol) in tetrahydrofuran (150 mL). Add LiAlH4 (488 mg, 12.9 mmol). Allow the reaction to slowly warm to room temperature and stir for 3 hours. Quench with water (25 mL) and filter through Celite®. Concentrate the filtrate in vacuo to a residue. Chromatograph (silica gel, 3:7 hexane/ethyl acetate) to afford (5-phenylthiazol-4-yl)methanol (1.4 g). 1H NMR (CDCl3) δ 8.75 (s, 1H), 7.40-7.55 (m, 5H), 4.80 (d, J=4 Hz, 2H), 3.15-3.22 (m, 1H).

1. customthe reaction
2. customQuench with water (25 mL)
3. filtrationfilter through Celite®
4. concentrationConcentrate the filtrate in vacuo to a residue