反应详情

A solution of 2.40 g (10.1 mmoles) of the product of Example 1 and 3 ml of 1,1-dimethylhydrazine in 6 ml of diglyme was heated at 165° C. for 3 hours in a sealed glass tube. Upon cooling, the solution was diluted with water and the resulting solid was collected and air-dried to give 1.80 g of 2,10-dihydro-10-(dimethylamino)imidazo[2,1-b]quinazolin-5(3H)-one. Melting point 197°-198° C. Total yield 77%.

1. temperatureUpon cooling
2. customthe resulting solid was collected
3. customair-dried