反应详情

温度

125 °C

Trimethyl orthoformate (5.648 mL, 51.56 mmol) is added to a solution of 4H-Isoquinoline-1,3-dione (4 g, 24.82 mmol) in acetic anhydride (41.6 mL) and N,N-dimethylformamide (10.4 mL). After it is heated at 125° C. for 50 min, it is cooled and filtered to collected 3.698 g (73%) of the title compound as a yellow solid. mp 260-261° C.; MS (ESI) m/z 204.04 (M+1). Found: C, 58.34; H, 3.63; N, 10.21.

1. temperatureit is cooled
2. filtrationfiltered
3. customto collected 3.698 g (73%) of the title compound as a yellow solid