Water → HCID 18519624, compound

Participants

Reaction Steps

5-Amino-2-chloro-4-fluorophenol (3.0 g, 18.6 mmol) and phthalic anhydride (3.3 g, 22.3 mmol) were dissolved in glacial acetic acid (60 ml) and the solution refluxed for 2 hr. Water was added and the resultant precipitate was separated by filtration. The residue was washed with water and dried to afford the title compound (5.04 g); 1H NMR (CDCl3+CD3OD, 300 MHz) 3.68 (1H, s), 6.93 (1H, d, J=6.6 Hz), 7.27 (1H, d, J=9.1 Hz), 7.84 (2H, dd, J=3.0, 5.5 Hz), 7.97 (2H, dd, J=3.0, 5.5 Hz) ppm.

Provenance & Evidence