反应详情

温度

23 °C

A mixture of the product of STEP 1 (45 g), ethanol (15 mL) and 15% aqueous NaOH (70 mL) was stirred at 23° C. for 30 minutes. The volatiles were removed in vacuo and the residue was acidified to pH=3. The precipitated solid was filtered and dried to give the above product as a white solid (40 g).

1. customThe volatiles were removed in vacuo
2. filtrationThe precipitated solid was filtered
3. customdried