反应详情

A mixture of 1-chloro-5-nitroisoquinoline (450 mg, 0.0022 mol), stannous chloride dihydrate (2.4 g, 0.011 mol), and EtOAc (50 mL) was stirred under reflux under an atmosphere of nitrogen for 3 h. After cooling, the mixture was poured into ice-water and basified to pH 10.0 with aq. Na2CO3. The organic phase was separated and the aqueous phase was extracted with EtOAc. The combined organic layers were washed with brine, dried (Na2SO4) and concentrated under vacuum. The residue was purified by column chromatography on silica gel to give the product as a light yellow solid. LC-MS: 3.17 min, 179.2 & 181.2 (M+1).

1. temperatureunder reflux under an atmosphere of nitrogen for 3 h
2. temperatureAfter cooling
3. customThe organic phase was separated
4. extractionthe aqueous phase was extracted with EtOAc
5. washThe combined organic layers were washed with brine
6. dry with materialdried (Na2SO4)
7. concentrationconcentrated under vacuum
8. customThe residue was purified by column chromatography on silica gel