反应详情

This product was immediately dissolved in dioxane (50 ml.), 3-carboxybenzaldehyde (4.5 g., 0.03 mole) added, followed by concentrated hydrochloric acid (10 ml) and the solution heated on a steam bath for 15 minutes. Work up was as Example 49 with recrystallisation from dimethylformamide to give the desired aurone, m.p. 280° C.

1. temperaturethe solution heated on a steam bath for 15 minutes
2. customWork up was as Example 49 with recrystallisation from dimethylformamide