反应详情

A solution of 3-(furan-3-yl)-2-methoxy-6-(phenylthiomethyl)benzoic acid (Intermediate 223, 0.83 g), benzyl bromide (0.46 g) and potassium carbonate (0.55 g) in THF (15 ml) was heated to 60° C. for 8 hours. After cooling, the mixture was filtered and the filtrate was evaporated to dryness. The residue was purified by chromatography on silica, eluting with a mixture of ethyl acetate and cyclohexane with a gradient of 0-10% to give benzyl 3-(furan-3-yl)-2-methoxy-6-(phenylthiomethyl)-benzoate (0.96 g) as a white solid.

1. temperatureAfter cooling
2. filtrationthe mixture was filtered
3. customthe filtrate was evaporated to dryness
4. customThe residue was purified by chromatography on silica
5. washeluting with a mixture of ethyl acetate and cyclohexane with a gradient of 0-10%