反应详情

A solution of (2,6-difluoro-3-methoxyphenyl)[1-(2-trimethylsilylethoxymethyl)-1H-benzimidazol-2-yl]methanol (1.4 g) in tetrahydrofuran (20 mL) is refluxed for 15 h with tetrabutylammonium fluoride (10 mL of a 1M solution in tetrahydrofuran). The mixture is then concentrated under reduced pressure and purified by chromatography over silica gel (gradient dichloromethane/methanol from 100/0 to 95/5) to afford the pure (1H-benzimidazol-2-yl)-(2,6-difluoro-3-methoxyphenyl)methanol.

1. concentrationThe mixture is then concentrated under reduced pressure
2. custompurified by chromatography over silica gel (gradient dichloromethane/methanol from 100/0 to 95/5)