反应详情

A mixture of 13.6 ml (114 mmol, 1.0 eq.) of benzyl bromide and 15.0 g (137 mmol, 1.2 eq.) of 2-hydroxy-4-methylpyridine [CAS No: 13466-41-6] was dissolved in 470 ml of THF. The solution was admixed with 37.9 g (137 mmol, 1.2 eq.) of silver carbonate and the mixture was heated to reflux with exclusion of light overnight. Subsequently, the reaction mixture was filtered through kieselguhr and eluted with ethyl acetate, and the filtrate was concentrated. The crude product was purified by silica gel chromatography (700 g of silica gel, cyclohexane/ethyl acetate 95:5). 21.4 g of the title compound were obtained (94% of theory).

1. temperaturethe mixture was heated
2. temperatureto reflux with exclusion of light overnight
3. filtrationSubsequently, the reaction mixture was filtered through kieselguhr
4. washeluted with ethyl acetate
5. concentrationthe filtrate was concentrated
6. customThe crude product was purified by silica gel chromatography (700 g of silica gel, cyclohexane/ethyl acetate 95:5)