反应详情

To a solution of tert-butyl 3-bromo-5-formylbenzoate (Merck patent case No. 22407 PV; 5.7 g, 20.0 mmol) in THF (133 mL) at 0° C. were added trimethyl(trifluoromethyl)silane (4.44 mL, 30.0 mmol) and activated 4 Å molecular sieves. Tetrabutylammonium fluoride (1.0 M in THF; 6.0 mL, 6.0 mmol) was added dropwise. The reaction mixture was warmed to ambient temperature. After 3 h, aqueous 1N HCl (25 mL) and tert-butyl methyl ether (100 mL) were added. The organic layer was separated, washed with brine, dried over sodium sulfate, filtered and concentrated.

1. customThe organic layer was separated
2. washwashed with brine
3. dry with materialdried over sodium sulfate
4. filtrationfiltered
5. concentrationconcentrated