Abstract
1. The Rodionov-Matveev reaction was extended to p-hydroxybenzoic acid and 1-phenol-4-sulfonic acid, and diazo compounds were obtained in yields of 75–90%. 2. When the Sandmeyer reaction was carried out on the diazo solution obtained from p-hydroxybenzoic acid, 3-chlora-4-hydroxybenzoic acid and 4-chloro-2-nitrophenol were formed. This indicates that the primary reaction products were 5-carboxy-2-hydroxybenzenediazonium and 4-hydroxy-3-nitrobenzenediazonium salts.
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