反应详情

A mixture of 5-iodo-4-methyl-3-nitro-2-pyridone (2.90 g, 10.4 mmol) and sodium hydride (60% in oil, 0.44 g, 11 mmol) was stirred at rt for 2.5 hours. 4-Methoxybenzyl chloride (1.50 mL) was added, and the mixture was stirred at rt for 18 h. Water was added, and the mixture and extracted with ethyl acetate. The organic phase was washed, dried and evaporated. Chromatography of the residue over silica gel (35% ethyl acetate/petroleum ether) followed by crystallization from water gave 1-(4-methoxybenzyl)-5-iodo-4-methyl-3-nitro-2-pyridone (3.11 g, 75%).

1. stirringthe mixture was stirred at rt for 18 h
2. extractionthe mixture and extracted with ethyl acetate
3. washThe organic phase was washed
4. customdried
5. customevaporated
6. customChromatography of the residue over silica gel (35% ethyl acetate/petroleum ether) followed by crystallization from water