2,6-disubstituted pyrylium salts easily undergo homolytic substitution in y position by reaction with alkyl radicals generated by oxidative cleavage of carboxylic acids with peroxydisulphate ion. Yields are generally satisfactory with secondary and tertiary alkyl radicals; as far as primary alkyl radicals are concerned, the reaction proved to be successful only with Me and Et.
Doddi, G., Ercolani, G., Iaconianni, P. (1989). Convenient Alkylation of Pyrylium Salts by Nucleophilic Alkyl Radicals. GAZZETTA CHIMICA ITALIANA, 119, 305-306.
Convenient Alkylation of Pyrylium Salts by Nucleophilic Alkyl Radicals
ERCOLANI, GIANFRANCO;
1989-01-01
Abstract
2,6-disubstituted pyrylium salts easily undergo homolytic substitution in y position by reaction with alkyl radicals generated by oxidative cleavage of carboxylic acids with peroxydisulphate ion. Yields are generally satisfactory with secondary and tertiary alkyl radicals; as far as primary alkyl radicals are concerned, the reaction proved to be successful only with Me and Et.File in questo prodotto:
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