Acetic Anhydride → HCID 10612833, compound

Participants

Reaction Steps

A mixture of the purified compound of step A (3.000 g, 12.54 mmol) and acetic anhydride (1.410 g, 1.31 ml, 13.82 mmol) in 3 ml of acetic acid was refluxed for 45 minutes, cooled and poured onto crushed ice and extracted with ethyl acetate. The organic layer was neutralized, dried and concentrated to give 3.71 g (105%) of dark-pink glass foam. 1H NMR (CDCl3) □ 1.95(s, 6H), 2.2(s, 3H), 2.32 (s, 3H), 6.2(s, 1H), 6.8(brs, 1H, NH), 6.9(s, 2H) ppm.

Provenance & Evidence