反应详情

60% NaH dispersion (1.4 g, 33.5 mmol) in mineral oil was washed with hexanes and then suspended in DMF (10 ml). To this NaH suspension in DMF, added benzyl alcohol (2.8 ml, 26.3 mmol) with water bath to keep the temperature below 30 ° C. The reaction mixture was stirred until the evolution of the hydrogen gas ceased. To a solution of 2-fluoro-5-nitrobenzotrifluoride (5.0 g, 23.9 mmol) in DMF (20 ml) was added the benzyl alkoxide solution slowly at 0 ° C. Upon the completion of the addition, the ice bath was removed and the reaction mixture was stirred at room temperature for 2 hours. The reaction mixture was poured into 200 ml ice water, stirred until the yellow solid was formed. Filtered and the solid was washed with water and then trituated with pentane. 5.9 g yellow solid was collected (yield: 83%). ESI-MS m/z 298 (M+H)+.

1. wash60% NaH dispersion (1.4 g, 33.5 mmol) in mineral oil was washed with hexanes
2. customthe temperature below 30 ° C
3. additionUpon the completion of the addition
4. customthe ice bath was removed
5. additionThe reaction mixture was poured into 200 ml ice water
6. stirringstirred until the yellow solid
7. customwas formed
8. filtrationFiltered
9. washthe solid was washed with water
10. custom5.9 g yellow solid was collected (yield: 83%)