反应详情

1.4 g of 2-(2-propynyloxy)-1,3-thiazole-5-carbaldehyde was dissolved in a mixture of 6 ml of water and 14 ml of ethanol, and 0.56 g of malononitrile was added dropwise. The mixture was stirred at room temperature for 3 hours. Thereafter, the reaction mixture was filtered, and the resulting cake was washed with 5 ml of ethanol two times and dried under reduced pressure to obtain 1.55 g of {[2-(2-propynyloxy)-1,3-thiazol-5-yl]methylidene}malononitrile.

1. additionwas added dropwise
2. filtrationThereafter, the reaction mixture was filtered
3. washthe resulting cake was washed with 5 ml of ethanol two times
4. customdried under reduced pressure