反应详情

To a solution of quinolin-5-yl-methanol (96 mg, 0.60 mmol) and DPPA (202 μL, 0.91 mmol) in toluene (2 mL) was added DBU (166 μL, 1.09 mmol) at room temperature. The reaction mixture was stirred at room temperature for 16 h. The reaction mixture was diluted with 3M HCl (1.7 mL) and ethyl acetate (5 mL). The organic phase was separated and the aqueous phase was re-extracted with ethyl acetate (×2). The combined organic phase was dried over Na2SO4 and concentrated. The resulting residue was purified by silica gel prep TLC using 98:2 CH2Cl2:MeOH as an eluent to afford 49 mg of 5-azidomethyl-quinoline as light brown oil (44%).

1. customThe organic phase was separated
2. extractionthe aqueous phase was re-extracted with ethyl acetate (×2)
3. dry with materialThe combined organic phase was dried over Na2SO4
4. concentrationconcentrated
5. customThe resulting residue was purified by silica gel prep TLC