反应详情

温度

100 °C

To 5-bromopyridin-3-amine (1.59 g, 9.19 mmol) (Aldrich) was added benzenesulfinic acid, sodium salt (1.810 g, 11.03 mmol) (Sigma-Aldrich), copper(I) iodide (0.175 g, 0.919 mmol), (S)-pyrrolidine-2-carboxylic acid (0.212 g, 1.838 mmol), sodium hydroxide (0.074 g, 1.838 mmol), and DMSO (18 mL), and the resulting mixture was stirred at 100° C. for 3 days. The reaction mixture was then diluted with 200 mL of EtOAc, added to a separatory funnel, and partitioned with sodium bicarbonate (saturated, aqueous). The organic layer was separated, washed 4 times with 150 mL of sodium bicarbonate (saturated, aqueous), dried over sodium sulfate, and concentrated in vacuo. Chromatographic purification of the residue (silica gel, 0% to 3% (2 M ammonia in MeOH)/DCM) furnished the title compound (11% yield). m/z (ESI, +ve ion) 235.3 (M+H)+.

1. additionadded to a separatory funnel
2. custompartitioned with sodium bicarbonate (saturated, aqueous)
3. customThe organic layer was separated
4. washwashed 4 times with 150 mL of sodium bicarbonate (saturated, aqueous)
5. dry with materialdried over sodium sulfate
6. concentrationconcentrated in vacuo
7. customChromatographic purification of the residue (silica gel, 0% to 3% (2 M ammonia in MeOH)/DCM)