反应详情

50 g (0.31 M) of 2-(2-nitrophenyl)acetonitrile was dissolved in 500 ml of dimethylformamide. Thereto was added 24.7 g (0.62 M) of 60% sodium hydride. The mixture was stirred at room temperature for 2 hours. Then, 68 g (0.31 M) of 4,6-dimethoxy-2-methanesulfonylpyrimidine was added. The mixture was stirred at 80° C. for 1 hour to give rise to a reaction. The reaction mixture was poured into water, followed by neutralization with dilute hydrochloric acid. The mixture was subjected to extraction with ethyl acetate. The extract was washed with water, dried and subjected to vacuum distillation to remove the solvent. The residue was recrystallized from ethanol to obtain 73.3 g (yield: 79%) of 2-(4,6-dimethoxypyrimidine-2-yl)-2-(2-nitrophenyl)acetonitrile as a white powder (melting point: 88 to 89° C.).

1. stirringThe mixture was stirred at 80° C. for 1 hour
2. customto give rise
3. customto a reaction
4. extractionThe mixture was subjected to extraction with ethyl acetate
5. washThe extract was washed with water
6. customdried
7. distillationsubjected to vacuum distillation
8. customto remove the solvent
9. customThe residue was recrystallized from ethanol