Synthesis of Chalcone

To a beaker add with stirring 25 mL of ethanol, 40 mL of water and 4.4 g of sodium hydroxide, after the solution has cooled down add 12 mL of acetophenone with vigorous stirring. Then start the addition of 13 mL of benzaldehyde with maintaining the temperature below 30°C, stir for additional 3 hours. Filter the mixture and wash with some water. Recrystallize from hot ethanol.

Source

ald2

The first mixture of chemicals

ald3

Addition of the p-tolualdehyde and stirring for 3h

ald5

The pure product

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