反应详情

A solution of [8-(2-chlorophenyl)-6-fluoro-2H-chromen-2-yl]methyl 4-methylbenzenesulfonate prepared in Example 61, step 1 (204 mg, 0.459 mmol) and sodium azide (119 mg, 1.834 mmol) in anhydrous dimethyl sulfoxide (8 mL) was heated at 70° C. under nitrogen for 19 hours. The cooled reaction mixture was quenched by the addition of water (30 mL) and the resulting suspension stirred vigorously for 5 minutes. The mixture was then partitioned between ethyl acetate (100 mL) and water (100 mL), the organic phase separated, washed with water (100 mL) and saturated brine (100 mL), dried over magnesium sulfate, filtered and concentrated under reduced pressure to afford 120 mg (67%) of 2-azidomethyl-8-(2-chloro-phenyl)-2H-chromene as a yellow syrup that was used without further purification.

1. customThe cooled reaction mixture
2. customwas quenched by the addition of water (30 mL)
3. customThe mixture was then partitioned between ethyl acetate (100 mL) and water (100 mL)
4. customthe organic phase separated
5. washwashed with water (100 mL) and saturated brine (100 mL)
6. dry with materialdried over magnesium sulfate
7. filtrationfiltered
8. concentrationconcentrated under reduced pressure