反应详情

NaBH4 (1 g) was added portionwise to a solution of 3-(1-imidazolyl)-2,3-dihydro-6-chloro-4H-1-benzopyran-4-one (2.7 g) in MeOH (70 ml) at 5°-10° C. The mixture, stirred at room temperature for 2 hours, added with water (300 ml), extracted with CHCl3, dried and evaporated to dryness gave (2.7 g) 3-(1-imidazolyl)-2,3-dihydro-6-chloro-4H-1-benzopyran-4-ol.

1. extractionextracted with CHCl3
2. customdried
3. customevaporated to dryness