Acetic Acid → HCID 18947702, compound

Participants

Reaction Steps

A mixture of 2-(2,4-dichlorophenyl)-4,5-dicyanoimidazole (10.05 g, 0.038 mol), glacial acetic acid (41 ml), concentrated sulphuric acid (19 ml) and water (9.4 ml) was heated at 120°-125° C. for 1.5 hours. After cooling the mixture was poured into water (300 ml) and the precipitated solid filtered off and dried in vacuo (100° C. at 50 mm Hg) to give 2-(2,4-dichlorophenyl)imidazole-4,5-dicarboxylic acid (10.24 g) m.p. 237.5°-238.5° C. as a white solid.

Provenance & Evidence