Acetic Anhydride → 1-[1-(4-Ethoxy-2-methylphenyl)-2,5-dimethyl-1H-pyrrol-3-yl]ethan-1-one

Participants

Reaction Steps

Utilizing the general procedure outlined in EXAMPLE 1, 2,5-dimethyl-1-(4-ethoxy-2-methylphenyl)pyrrole (2.29 g, 10 mmol), acetic anhydride (5 mL), and hydriodic acid (0.13 mL, 1.7 mmol) reacted to give 3-acetyl-2,5-dimethyl-1-(4-ethoxy-2-methylphenyl)pyrrole as a tan solid: 1H NMR (CDCl3, 500 MHz) δ 6.99 (d, 1H), 6.85 (d, 1H), 6.79 (dd, 1H), 6.32 (s, 1H), 4.06 (q, 2H), 2.42 (s, 3H), 2.22 (s, 3H), 1.89 (s, 3H), 1.88 (s, 3H), 1.44 (t, 3H); MS (ESI) 272 (M +H)+.

Provenance & Evidence