反应详情

温度

75 °C

A mixture of 5.2 g of sodium 2-chloro-5-nitrobenzenesulfonate, 0.6 g of manganese dioxide, 15 ml of methyl Cellosolve, 1 ml of water and 0.95 g of sodium hydroxide was stirred at 75°C. for 40 minutes. After cooling, the insoluble materials were removed by filtration and the filtrate was poured into 100 ml of isopropyl alcohol. The crystals thus-precipitated were recovered by filtration to obtain 4.8 g of sodium 2-(2-methoxyethoxy)-5-nitrobenzenesulfonate. Melting Point: 238° to 239° C.

1. temperatureAfter cooling
2. customthe insoluble materials were removed by filtration
3. additionthe filtrate was poured into 100 ml of isopropyl alcohol
4. customThe crystals thus-precipitated
5. filtrationwere recovered by filtration