Novel Method for the Phase-Transfer Catalyzed Sulfodechlorination of 1-Chloro-2,4-dinitrobenzene

✍ Scribed by Dipl.-Chem. Markus Gisler; Prof. Dr. Heinrich Zollinger

• Publisher: John Wiley and Sons
• Year: 1981
• Tongue: English
• Weight: 253 KB
• Volume: 20
• Category: Article
• ISSN: 0044-8249
• DOI: 10.1002/anie.198102031

✦ Synopsis

Mild conditions and very good yields typify the sulfodechlorination of 1‐chloro‐2,4‐dinitrobenzene with potassium disulfite to 2,4‐dinitrobenzoic acid in the presence of protonated tertiary amines as phase‐transfer catalysts; the yield and above all the purity of the product depends on the chain‐length of the alkyl moiety of the amine.