Hydrochloric Acid → HCID 67672760, compound

Participants

Reaction Steps

3-[5-Acetylamino-2,4,6,7-tetramethyl-2,3-dihydrobenzofuran-2-yl]acrylic acid ethyl ester (0.5 g, 1.58 mmol) was dissolved in methanol (5 ml). Conc. hydrochloric acid (5 ml) was added to the solution and the mixture was heated under reflux for 1 hour. The reaction mixture was cooled and the crystals precipitated were filtered. The crude crystals obtained were recrystallized from ethanol-isopropyl ether to obtain the desired compound (0.35 g, yield: 74.7% yield), m.p. 225°-234° C. (dec.).

Provenance & Evidence