反应详情

4-Oxo-3-methoxycarbonyltetrahydrothiophene (3.9 g) was heated under reflux for 1 hour with hydroxylamine hydrochloride (2 g) in acetonitrile 10 ml). The mixture was then cooled and the solid portion was filtered off and washed with dry diethyl ether to afford the title compound (3.65 g), m.p. 203°-204° C.

1. temperatureThe mixture was then cooled
2. filtrationthe solid portion was filtered off
3. washwashed with dry diethyl ether