反应详情

To a solution of 3-bromo-6-chloro-imidazo[1,2-b]pyridazine (2.40 g, 10.35 mmol) in 30 mL of THF was added EtMgBr (1M in THF, 12.43 mL, 12.42 mmol) solution at rt. The solution was stirred for 30 min and a solution of 5,7-difluoroquinoline-6-carbaldehyde (2.0 g, 10.35 mmol) in 10 mL of THF was added. The resulting mixture was stirred at rt for additional 2 h and then quenched with 50 mL of NH4Cl solution. The solution was extracted with EtOAc and the combined organic layers were washed with water, brine, dried over Na2SO4 and concentrated in vacuo to afford 3.48 g (97%) of the title compound. LCMS (method B): [MH]+=347, tR=1.23 min.

1. stirringThe resulting mixture was stirred at rt for additional 2 h
2. customquenched with 50 mL of NH4Cl solution
3. extractionThe solution was extracted with EtOAc
4. washthe combined organic layers were washed with water, brine
5. dry with materialdried over Na2SO4
6. concentrationconcentrated in vacuo