反应详情

To a solution of 3,4-dihydro-6-(3,4-dimethoxyphenyl)-1,3-dimethyl-4-(4-hydroxyphenylimino)-2(1H)-pyrimidinone (1.5 g) in acetone (30 ml) was added potassium carbonate (0.56 g) and epichlorohydrin (0.32 ml). After the mixture was refluxed for 7 hours, an additional epichlorohydrin (1.6 ml) was added thereto, and further the mixture was refluxed for 38 hours. The resulting mixture was evaporated and chromatographed on silica-gel eluting with chloroform to give crude 3,4-dihydro-6-(3,4-dimethoxyphenyl)-1,3-dimethyl-4-[4-(2,3-epoxypropoxy)phenylimino]-2(1H)-pyrimidinone, which was recrystallized from diethyl ether.

1. temperatureAfter the mixture was refluxed for 7 hours
2. temperaturefurther the mixture was refluxed for 38 hours
3. customThe resulting mixture was evaporated
4. customchromatographed on silica-gel
5. washeluting with chloroform