Triethylamine → 3-Methoxynaphthalen-1-yl Trifluoromethanesulfonate

Participants

Reaction Steps

Trifluoromethanesulfonic anhydride (9.35 g, 32.8 mmol) was added dropwise to a solution of 3-methoxy-1-naphthol (5.77 g, 32.8 mmol) and Et3N (10 ml) in dichloromethane (100 ml) at 0° C. with stirring. After 1 h the resulting solution was washed with HCl (50 ml, 1 M) and saturated Na2CO3 (50 ml), dried (MgSO4) and the solvent removed under reduced pressure. The residue was chromatographed on silica using EtOAc (7% in hexanes) to give the title compound (7.45 g, 74%) as a colourless oil.

Provenance & Evidence