反应详情

温度

100 °C

--A mixture of salicylic acid (90 g), 2,2,2-trichloroethanoI (270 g) and concentrated sulphuric acid (50 g) was stirred and heated at 100° C. for 4 hours. The mixture was diluted with chloroform (800 ml) and extracted with water (2×500 ml). After further extraction with saturated aqueous sodium bicarbonate solution (1000 ml), the organic layer was washed with water (2×500 ml) and dried (Mg SO4). The chloroform and excess trichloroethanol was removed in vacuo (65° C./20 mmHg) and the product was distilled (110°-112° C./0.5 mmHg) to give 2,2,2-trichloroethyl salicylate (104 g, 59% ) as a clear liquid which solidified on cooling.

1. extractionextracted with water (2×500 ml)
2. extractionAfter further extraction with saturated aqueous sodium bicarbonate solution (1000 ml)
3. washthe organic layer was washed with water (2×500 ml)
4. dry with materialdried (Mg SO4)
5. customThe chloroform and excess trichloroethanol was removed in vacuo (65° C./20 mmHg)
6. distillationthe product was distilled (110°-112° C./0.5 mmHg)