反应详情

1.45 g (5 mmol) of 2-dipropylamino-8-(2-aminoethoxy)-1,2,3,4-tetrahydronaphthalene were dissolved in 10 ml of water and 10 ml of 1 N hydrochloric acid. A solution of 4.1 g (50 mmol) of potassium cyanate and 20 ml of water was then added dropwise at a temperature of +60° C. The mixture was stirred for 3 h at +60° C., the reaction product precipitating. This was filtered off under suction, and the residue was stirred with hot petroleum ether. After cooling, the product was filtered off under suction.

1. customthe reaction product precipitating
2. filtrationThis was filtered off under suction
3. stirringthe residue was stirred with hot petroleum ether
4. temperatureAfter cooling
5. filtrationthe product was filtered off under suction