反应详情

26.4 g (0.66 mol) of sodium hydroxide and 59.1 g (0.299 mol) of 2,4,6-trichlorophenol were respectively added to 450 ml of water for dissolution at normal temperature. Adding 28.11 g (0.299 mol) of monochloroacetic acid hereto, the reaction mixture was heated and refluxed for 9 to 10 hours, while the external temperature was maintained at 110°-120° C. On completion of the reaction, it was lowered to normal temperature to be followed by the filtration of product precipitate. The above reaction product was dissolved in 100 g of water and acidified with concentrated hydrochloric acid to obtain 70.5 g of 2,4,6-trichloropnenoxyacetic acid as a raw product.

1. temperaturethe reaction mixture was heated
2. temperaturerefluxed for 9 to 10 hours, while the external temperature
3. temperaturewas maintained at 110°-120° C
4. customOn completion of the reaction, it
5. filtrationto be followed by the filtration of product precipitate
6. customThe above reaction product