Water → HCID 70456073, compound

Participants

Reaction Steps

A solution of 3-chloro-2-(1-imidazolylmethyl)benzofuran-5-carbonitrile (0.35 g) in concentrated sulphuric acid (5 ml) and water (5 ml) was heated under reflux for 1 hour and then cooled. The solution was diluted with 5 ml of water and made just alkaline by the addition of 5N sodium hydroxide solution. The solution was filtered and made acidic by the addition of acetic acid. The solid which crystallised out on standing was filtered off, washed with water and dried to give 3-chloro-2-(1-imidazolylmethyl)benzofuran-5-carboxylic acid (0.20 g), m.p. 248°-250°.

Provenance & Evidence