反应详情

To a solution of (4-chlorophenyl)methanamine (610 mg, 4.31 mmol), 6-bromo-3-methoxypicolinic acid (1.0 g, 4.31 mmol) and triethylamine (1.31 g, 12.9 mmol) in DCM (10 mL) was added dropwise T3P (2.74 g, 8.61 mmol) at 0° C. Five minutes later, TLC indicated the reaction was complete, and the mixture was suspended in water and extracted with DCM. The organic phase was washed with brine, dried over sodium sulfate and concentrated in vacuo to give the crude 6-bromo-N-(4-chlorobenzyl)-3-methoxypicolinamide (1.3 g, yield: 87%) without further purification. 1H-NMR (DMSO-d6, 400 MHz) δ 8.98 (t, J=6.0 Hz, 1H), 7.69 (d, J=8.8 Hz, 1H), 7.58 (d, J=8.8 Hz, 1H), 7.39˜7.43 (m, 2H), 7.33 (d, J=8.4 Hz, 2H), 4.22 (d, J=6.4 Hz, 2H), 3.84 (s, 3H). MS (M+H)+: 355/357.

1. customFive minutes
2. extractionextracted with DCM
3. washThe organic phase was washed with brine
4. dry with materialdried over sodium sulfate
5. concentrationconcentrated in vacuo