Potassium Carbonate → HCID 21532507, compound

Participants

Reaction Steps

A mixture of 11.7 g. (0.07 mol.) of 2-amino-4-propylbenzenethiol, 17.4 g. (0.07 mol.) of 2-bromo-3-nitrobenzoic acid, 38.7 g. (0.28 mol.) of anhydrous potassium carbonate and 6 g. (0.03 mol.) of sodium hydrosulfite in 125 ml. of dimethylformamide is stirred and heated for two hours at 125°-130°. The reaction mixture is cooled and stirred into 1000 ml. of dilute acetic acid. The solid that separates is collected, washed with water and dried to give 8-propylphenothiazine-1-carboxylic acid.

Provenance & Evidence