Permanganate → HCID 13179844, compound

Participants

Reaction Steps

To a solution of methyl 1,4-dimethyl-5-formylpyrrole-2-carboxylate (0.3 g, 0.0016 m) in acetone (10 ml) at room temperature was added over 15 minutes a solution of potassium permanganate (0.52 g, 0.0033 m) in 1:1 water-acetone (10 ml), and the resulting mixture allowed to stir for 1.5 hours. The reaction mixture was then diluted with water (100 ml), treated with enough sodium sulfite to reduce the excess permanganate, filtered, and the filtrate acidified with dilute hydrochloric acid. The resulting precipitate was filtered, washed well with water and dried to give 0.20 g (64%) of methyl 5-carboxy-1,4-dimethylpyrrole-2-carboxylate.

Provenance & Evidence