反应详情

2-Bromopropionyl bromide (6.7 g) is added dropwise to a stirring mixture of 3,4-dihydro-3-methyl-2(1H)-quinazolinone (2.5 g) and anhydrous aluminum chloride (4.9 g) in carbon disulfide (50 ml) under nitrogen. The reaction mixture is refluxed for five hours, cooled to RT, the carbon disulfide decanted, and the residue treated with hydrochloric acid (6N). The treated residue is poured into ice water, and the resulting suspension is stirred, filtered, the filtered solid washed with water, and dried in vacuo, affording the desired product, which is used in the next step without further purification, M.P. 150°-165° C. (dec).

1. temperatureThe reaction mixture is refluxed for five hours
2. customthe carbon disulfide decanted
3. additionthe residue treated with hydrochloric acid (6N)
4. additionThe treated residue is poured into ice water
5. filtrationfiltered
6. washthe filtered solid washed with water
7. customdried in vacuo