反应详情

1.76 g (10 mmol) of 4-allyloxyacetophenone and 1.66 g (10 mmol) of 3,4-dimethoxy-benzaldehyde were under a dry inert atmosphere (argon) dissolved in 10 ml dry ethanol and the solution was stirred for 18 h. The solution was filtered to give 3.0 g (99%) of 3,4-dimethoxy-4′-prop-2-enyloxychalcone which was recrystallized from ethanol, m.p. 74.5-75° C.

1. filtrationThe solution was filtered