Abstract
1) Reaction conditions were examined for the preparation of phenosulfazole and 2-(p-hydroxybenzenesulfonamido)-4-methylthiazole by the respective diazotization of sulfathiazole and sulfamethylthiazole, followed by decomposition with hot, diluted sulfuric acid.
2) Properties of phenosulfazole and 2-(p-hydroxybenzenesulfonamido)-4-methylthiazole were clarified.
