反应详情

To a solution of ethyl 3-benzyloxy-1-methyl-1H-pyrazole-4-carboxylate (18.00 g) in tetrahydrofuran (200 ml) was added aluminum lithium hydride (2.62 g) at 0° C. and the mixture was stirred at room temperature for 1 hr. To the reaction mixture was added sodium sulfate 10 hydrate (22.20 g) and the mixture was stirred at room temperature for 1 hr. The precipitate was removed by filtration and the filtrate was concentrated. The residue was subjected to silica gel column chromatography, and (3-benzyloxy-1-methyl-1H-pyrazol-4-yl)methanol (23.90 g, yield 91%) was obtained as a colorless oil from a fraction eluted with ethyl acetate.

1. stirringthe mixture was stirred at room temperature for 1 hr
2. customThe precipitate was removed by filtration
3. concentrationthe filtrate was concentrated