反应详情

To a suspension of 4-(7-(2-fluoro-4-nitrophenoxy)benzo[b]thiophen-2-yl)-1,2,3,6-tetrahydropyridine 268 (400 mg, 1.08 mmol) and DIPEA (0.207 mL, 1.19 mmol) in DCM was added acetyl chloride (0.15 mL, 2.16 mmol) at room temperature and the mixture (that turned homogeneous soon after) was stirred for 1 h. The crude mixture was concentrated under reduced pressure and the residue purified by flash chromatography (5% MeOH to 10% MeOH in DCM) affording 269 (358.2 mg, 0.87 mmol, 80% yield) as a white solid. MS (m/z): (M+1) 414.4 (100%).

1. concentrationThe crude mixture was concentrated under reduced pressure
2. customthe residue purified by flash chromatography (5% MeOH to 10% MeOH in DCM)