反应详情

A stirred suspension of 0.50 g. (1.47 mmol.) of 2-benzoyl-3-acetoxymethylquinoxaline 1,4-dioxide in 10 ml. of methanol was saturated with dry hydrogen chloride. The reaction mixture was stirred at room temperature for three days and then the suspended solid was removed by filtration. The solid was washed with methanol, and dried, to give 0.28 g. (61% yield ) of 1-methoxy-1-phenyl-1,3-dihydrofuro[3,4-b]quinoxaline 4,9-dioxide, m.p. 153°-155° C.

1. additionA stirred suspension of 0.50 g
2. customthe suspended solid was removed by filtration
3. washThe solid was washed with methanol
4. customdried
5. customto give 0.28 g