反应详情

A mixture of 260 mg of 2-methylthio-7-phenylpyrazolo [1,5-a]-1,3,5-triazine-4-one and 140 mg of anhydrous potassium carbonate in 5 ml dry dimethylformamide is stirred at room temperature for 15 min while 0.14 ml ethylbromacetate is added dropwise. The mixture is stirred at room temperature overnight, filtered, and the filter cake washed with dimethylformamide.

1. additionis added dropwise
2. filtrationfiltered
3. washthe filter cake washed with dimethylformamide