反应详情

温度

22 °C

To a solution of 2.45 g (11.0 mmol) of dimethyl 5-formylisophthalate in 30 mL of methanol was added 1.48 mL (27.6 mmol) of nitromethane and 1.53 mL (11.0 mmol) of triethylamine (TEA). The solution was stirred at 22° C. for about 16 h, evaporated then coevaporated with xylenes. The residue was purified by flash chromatography on silica gel, eluting first with 5% ethyl acetate/hexane and then gradually increasing to 20% ethyl acetate/hexane which gave dimethyl 5-(1-hydroxy-2-nitroethyl)isophthalate as a solid.

1. customevaporated
2. customThe residue was purified by flash chromatography on silica gel
3. washeluting first with 5% ethyl acetate/hexane
4. temperaturegradually increasing to 20% ethyl acetate/hexane which