Acetic Anhydride → N-[(2H-1,3-Benzodioxol-5-yl)methyl]ethanimidic acid

Participants

Reaction Conditions

Reaction Steps

To a solution of 3,4-methylenedioxybenzylamine (10 g, 66.2 mmol) in acetic acid (50 mL) was added acetic anhydride (15.27 g, 150 mmol). The mixture was stirred at 20° C. for 30 minutes. Then it was adjusted to PH7 with 10% NaOH. The mixture was filtered to obtain a solid which was washed water and dried in vacuum to give N-(benzo[d][1,3]dioxol-5-ylmethyl)acetamide as a white solid (9.24 g, 77%). LC-MS: 194 [M+1]+; 1H-NMR (DMSO-d6): δ 1.84 (s, 3H), 4.12 (d, 2H, J=6.4 Hz), 5.98 (s, 2H), 6.71 (m, 2H), 6.83 (m, 2H), 8.28 (s, 1H).

Provenance & Evidence