The irrelevance of an intramolecular salt bridge for solvent-catalyzed decarboxylation-solvent catalysis of the decarboxylation of 4 and6-(2′,4′,6′-trimethylpyridinium)-benzisoxazole-3-carboxylates

✍ Scribed by D.S. Kemp; J. Reczek; F. Vellaccio

• Publisher: Elsevier Science
• Year: 1978
• Tongue: French
• Weight: 113 KB
• Volume: 19
• Category: Article
• ISSN: 0040-4039
• DOI: 10.1016/s0040-4039(01)85382-x

✦ Synopsis

Previously, we have shown that the benzisoxazole-3-carboxyTates, b, undergo an intermediateless conversion to carbon dioxide and g-cyanophenolate, 5, that is subject to very large solvent rate accelerations. 2 Recently, Klotz and coworkers have demonstrated a pronounced catalysis by aqueous solutions of polymeric ammonium salts bearing lipophilic regions,' and lipophilic polymers bearing crown ether-cation complexes have been shown to be capable of even