Methanamine, N-methoxy-, hydrochloride (1:1) → Acetamide, N-methoxy-2-[(4-methoxyphenyl)methoxy]-N-methyl-

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Reaction Steps

To a mixture of [(4-methoxybenzyl)oxy]acetic acid (Bioorganic and Medicinal Chemistry Letters, 2001, pp. 2837-2841) (6.86 g, 0.0350 mol) and N,O-dimethylhydroxylamine hydrochloride (3.41 g, 0.0350 mol) in DCM (100 mL) was added benzotriazol-1-yloxytris(dimethylamino)-phosphonium hexafluorophosphate (17 g, 0.038 mol) followed by TEA (9.7 mL, 0.070 mol). The resulting mixture was stirred overnight at room temperature. The solution was then washed with water, 0.5 M HCl, saturated NaHCO3, and brine, then was dried over sodium sulfate, filtered and concentrated in vacuo. Flash column chromatography (ether/hexanes) afforded the desired product (5.75 g, 69%).

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