反应详情

In 100 ml of pyridine was dissolved 18 g of refined 4-hydroxy-α-methylcinnamic acid synthesized in Referential Example 1, 20 g of acetic anhydride was dropped into the solution, and the reaction was carried out at room temperature with stirring for 2 hours. Then, the liquid reaction mixture was dropped in a 1% by weight aqueous solution of hydroxychloric acid, and the precipitated reaction product was recovered by filtration, washed with water, and dried to obtain 20 g of 4-acetoxy-α-methylcinnamic acid.

1. additionwas dropped into the solution
2. customwas carried out at room temperature
3. customThen, the liquid reaction mixture
4. customthe precipitated reaction product
5. filtrationwas recovered by filtration
6. washwashed with water
7. customdried