反应详情

4-(Difluoromethoxy)benzyl amine (1.73 g, 9.97 mmol) was dissolved in THF (10 mL). It was cooled in an ice-bath. Under nitrogen atmosphere, triethylamine (1.46 mL, 10.46 mmol) was added and then benzylsulfonyl chloride (1.9 g, 9.97 mmol) in THF (10 mL) was dropped in. The cooling bath was removed after the addition. The mixture was stirred for 3 h and then evaporated to dryness. DCM (50 mL) was added to the residue. It was then washed with 1% HCl (15 mL), water (50 mL×3) and brine, dried (MgSO4) and evaporated to give the title compound (3.01 g. 92%) as a solid; 1H NMR (400 MHz, CDCl3): δ 7.32-7.40 (m, 5H), 7.26 (d, 2H), 7.09 (d, 2H), 6.49 (t, 1H), 4.36 (bt, 1H), 4.24 (s, 2H), 4.10 (d, 2H); Mass Spectrum: M−H+ 326.

1. temperatureIt was cooled in an ice-bath
2. customThe cooling bath was removed
3. additionafter the addition
4. customevaporated to dryness
5. additionDCM (50 mL) was added to the residue
6. washIt was then washed with 1% HCl (15 mL), water (50 mL×3) and brine
7. dry with materialdried (MgSO4)
8. customevaporated