反应详情

To a solution of 2a (0.76 g, 4.06 mmol) in 10 mL of THF at room temperature, was added potassium tert-butoxide (0.65 g, 1.4 eq). The resulting mixture was stirred at room temperature for 30 minutes then 4,6-dichloropyrimidine (0.8 g, 1.3 eq) was added. The reaction mixture was stirred at room temperature for 16 h then the solvent was removed under a stream of nitrogen. The residue was taken up with DCM and purified by flash chromatography (elution with 0-40% ethyl acetate and 0.1% TEA in hexanes) to give 0.51 g of 2b (42% yield).

1. stirringThe reaction mixture was stirred at room temperature for 16 h
2. customthe solvent was removed under a stream of nitrogen
3. custompurified by flash chromatography (elution with 0-40% ethyl acetate and 0.1% TEA in hexanes)