Pyridine → Phenyl 3-fluoro-4-(methylsulfonamidomethyl)phenylcarbamate

Participants

Reaction Steps

To a stirred solution of N-(4-amino-2-fluorobenzyl)methanesulfonamide (190 mg, 0.871 mmol) in tetrahydrofuran and acetonitrile as co-solvent were added phenylchloroformate (0.115 ml, 0.914 mmol) and pyridine (0.084 ml, 1.045 mmol). The reaction mixture was stirred for 1 h at room temperature. The mixture dissolved in ethyl acetate and washed with water and brine. The organic layer was dried over magnesium sulfate and filtered. The filtrate was removed in vacuo. The crude was purified by column chromatography. Phenyl 3-fluoro-4-(methylsulfonamidomethyl)phenylcarbamate (250 mg) was obtained as 85% yield.

Provenance & Evidence