反应详情

温度

40 °C

0.5 g of 3,4-diethoxy-phenylacetic acid are placed in 10 ml of acetic acid p.a. and 0.5 ml of 659 nitric acid are added dropwise, so that the internal temperature does not rise above 15° C. The mixture is then heated to 40° C. for 0.5 hours. After this time the solution is poured onto ice water and the precipitate formed is suction filtered. The product is washed with water and dried at 100° C.

1. customdoes not rise above 15° C
2. additionAfter this time the solution is poured onto ice water
3. customthe precipitate formed
4. filtrationfiltered
5. washThe product is washed with water
6. customdried at 100° C.