反应详情

温度

125 °C

In a 1 L three-necked bottle, 40 g of 4,7-dibromo-3-hydroxy-2-naphthoic acid (0.116 mol) and 500 ml of glacial acetic acid were added, and stirred to make homogenous. 18 g of tin powder (0.153 mol) and 130 ml of concentrated hydrochloric acid were then added to the mixture in order, heated to 125° C., and refluxed under heating for 12 h. 300 ml of water was added to the mixture, stirred to room temperature, filtered, and the filter cake was washed with water (200 ml*2), and dried in an oven to obtain 29.9 g of a solid with a yield of 96.5%.

1. temperaturerefluxed
2. temperatureunder heating for 12 h
3. stirringstirred to room temperature
4. filtrationfiltered
5. washthe filter cake was washed with water (200 ml*2)
6. customdried in an oven