反应详情

4-Methylpiperidin-4-ol (2.72 g, 23.6 mmol), 5-bromo-2-nitropyridine (3.2 g, 15.8 mmol), and tetrabutylammonium iodide (72 mg, 195 umol) in DMSO (20 ml) was heated to 120° C. for 18 hr. After cooling to room temperature, the reaction mixture was then diluted with EtOAc and washed with water (3×20 mL). The organic phase was then concentrated and triturated with ether to give 4-methyl-1-(6-nitropyridin-3-yl)piperidin-4-ol as a yellow solid (2.55 g, 68.2%). (M+H)+=327.9 m/e.

1. washwashed with water (3×20 mL)
2. concentrationThe organic phase was then concentrated
3. customtriturated with ether