反应详情

温度

0 °C

4,6-Dihydroxy-2-methoxymethyl-nicotinic acid methyl ester (15.9 g, 74.75 mmol) is dissolved in AcOH (60 mL) and cooled to 0° C. in an ice bath. Nitric acid (70%, 4.73 mL) is added dropwise. The resulting solution is stirred at room temperature overnight. Water (200 mL) is added to the mixture and a white precipitate forms. The precipitate is collected and dried in a vacuum oven to afford the title compound as a white solid.

1. customThe precipitate is collected
2. customdried in a vacuum oven