Acetic Acid → HCID 86747764, compound

Participants

Reaction Steps

Methyl 2-hydroxy-5-[2-(4-sulfophenyl)ethenyl]benzoate potassium salt (57.5 g, 0.15 mol), acetic acid (35 ml) and acetic anhydride (142 ml) were refluxed until the major part of the solids had dissolved, and then more acetic anhydride (142 ml) and sulfuric acid (1 ml) were added. After boiling for 1.5 h, the mixture was cooled to room temperature and diethyl ether was added to complete precipitation. After filtration and drying, the yield was 43.4 g (69%).

Provenance & Evidence