反应详情

1,2,6,7-Tetrahydro-8H-cyclopenta[d]furo[2,3-b]pyridin-8-one (610 mg, 3.48 mmol), acetone (1.28 mL, 17.4 mmol) and ICN Alumina B (manufactured by ICN, Akt. 1, 10 g) were suspended in tetrahydrofuran (15 mL), and the suspension was stirred at room temperature for 3 hr. Acetone (1.28 mL, 17.4 mmol) was added, and the mixture was further stirred for 3 hr. The reaction solution was filtered, and the filtrate was evaporated under reduced pressure to give the title compound (539 mg, yield 72%).

1. stirringthe mixture was further stirred for 3 hr
2. filtrationThe reaction solution was filtered
3. customthe filtrate was evaporated under reduced pressure