反应详情

A solution of 2-trifluoromethyl-furan-3-carboxylic acid ethyl ester (2.2 g, 10.5 mmoles) in tetrahydrofuran (150 ml) was treated portionwise during 0.5 h with lithium aluminium hydride (0.55 g, 14.5 mmoles) under a nitrogen atmosphere. When the addition was complete the mixture was stirred at room temperature for 18 h, then quenched by the addition of excess acetone (1 ml) and then water (1 ml). After diluting with ethyl acetate (200 ml) the grey precipitate was removed by filtration. The filtrate was dried and evaporation of the solvent afforded (2-trifluoromethyl-furan-3-yl)-methanol as a colourless oil. This material was used immediately in the next step.

1. additionWhen the addition
2. customquenched by the addition of excess acetone (1 ml)
3. additionAfter diluting with ethyl acetate (200 ml) the grey precipitate
4. customwas removed by filtration
5. customThe filtrate was dried
6. customevaporation of the solvent