4-Methylacetophenone (15 mmol), 1,3-di-p-tolyl-propenone (15 mmol), and powder NaOH (60 mmol) were added into a mortar and mixed with a pestle. A yellow powder was formed. It was mixed with an ammonium acetate solution (10 g, excess) in ethanol (100 mL). The reaction mixture was refluxed for ten-hour. The reaction solution was cooled to room temperature. The precipitate was filtered, washed with distilled water several times, and dried to give the product.