反应详情

温度

16 °C

3.39 g of 5-formyl-2,2'-bithiophene and 2 ml of acetone was dissolved in 50 ml of ethanol. The temperature of the reaction solution was controlled at 12° C. and diluted KOH solution was dropped in. After the temperature of the mixture raised to 16° C. and the color thereof changed from dark yellow to orange red. After completion of the reaction in refrigerator for overnight, the reaction mixture was decomposed with water. The solid collected was recrystallized from alcohol. A yellowish crystal (2.23 g) was thus obtained. The melting point of the product was 204° C.

1. customwas controlled at 12° C.
2. customAfter completion of the reaction in refrigerator for overnight
3. customThe solid collected
4. customwas recrystallized from alcohol