反应详情

温度

70 °C

O-4-nitrophenylhydroxylamine (1.0 g), was suspended in acetic acid (10 ml) and 1-(4-hydroxyphenyl)-heptane-1,3-dione (1.36 g; see step (b) above) was added. The mixture was stirred for 3 h at 70° C. and then at 100° C. for an additional 22 h. The mixture was cooled to room temperature and the solvent evaporated under vacuum. Yield 80% of 2-Butyl-3-(4-hydroxybenzoyl)-5-nitrobenzofuran.

1. waitat 100° C. for an additional 22 h
2. temperatureThe mixture was cooled to room temperature
3. customthe solvent evaporated under vacuum