反应详情

A stirring suspension of 3-hydroxy-7-iodo-2-(3,4,5-trimethoxyphenyl)-chromen-4-one (0.257 g, 0.6mmol), potassium carbonate (1.48 g, 11 mmol, 19 equ), potassium iodide (0.06 g, 0.3 mmol, 0.6 equ) and benzyl chloride (0.16 ml, 1.3 mmol, 2.3 equ) in acetone (12 ml) under nitrogen was heated to reflux for one hour. The reaction was filtered and the filtrate concentrated in vacuo to give an orange solid. This solid was recrystallised from isopropanol to give 34 (0.270 g, 88%) as a white solid.

1. temperaturewas heated
2. temperatureto reflux for one hour
3. filtrationThe reaction was filtered
4. concentrationthe filtrate concentrated in vacuo
5. customto give an orange solid
6. customThis solid was recrystallised from isopropanol