反应详情

Lithium aluminum hydride (0.668 g) was added portionwise to a solution of 7-chloro-3-ethoxycarbonyl-2-methylimidazo[2,1-a]isoquinoline (5.1 g) in tetrahydrofuran (100 ml) with ice-cooling under nitrogen atmosphere and the mixture was stirred at room temperature for 1.5 hours. After an addition of ethyl acetate, the mixture was evaporated in vacuo and the residue was extracted with hot ethanol. The extract was treated with activated charcoal and evaporated in vacuo. The residue was recrystallized from 90% ethanol to give 7-chloro-3-hydroxymethyl-2-methylimidazo[2,1-a]isoquinoline (1.94 g).

1. temperaturecooling under nitrogen atmosphere
2. customthe mixture was evaporated in vacuo
3. extractionthe residue was extracted with hot ethanol
4. additionThe extract was treated with activated charcoal
5. customevaporated in vacuo
6. customThe residue was recrystallized from 90% ethanol