反应详情

温度

-78 °C

To a −78° C. cooled solution of benzothiazole-5-carboxylic acid methyl ester (1 eq.) in dry THF under nitrogen was slowly added a solution of LiAlH4 (1M in THF, 1.5 eq.). The reaction was stirred at −78° C. for 2 h, then warmed to 20° C. EtOAc was added to the reaction, then aqueous NaOH (2N) and finally water. The reaction mixture was stirred at 20° C. for 30 min, then filtered through a pad of celite. The filtrate was concentrated under reduced pressure. The crude was purified by chromatography on silica gel (elution with heptane/EtOAc: 1/0 to 1/1) to afford benzothiazol-5-yl-methanol.

1. temperaturewarmed to 20° C
2. stirringThe reaction mixture was stirred at 20° C. for 30 min
3. filtrationfiltered through a pad of celite
4. concentrationThe filtrate was concentrated under reduced pressure
5. customThe crude was purified by chromatography on silica gel (elution with heptane/EtOAc: 1/0 to 1/1)