Abstract
Diphenyliodonium fluoroborate proved to be a suitable reagent for direct arylation of bridge head nitrogen containing fused heteroaromatic systems. By this one step method, 1-aryl-tetrazolo[1,5-a]pyridinium salt (3) can be obtained. Arylation of related benzenologues gave not only 1-aryl but also 2-aryltetrazolium salts.
Zusammenfassung
Kondensierte Heteroaromaten mit Brückenkopf-Stickstoff können direkt mit Diphenyl-Jodonium Fluoroborat aryliert werden. In dieser Weise wird 1-Aryltetrazolo[1,5-a]pyridinium Salz (3) in einer Reaktionsstufe synthetisiert. Arylierung der verwandten Benzologen führten nicht nur zu 1-Aryl, sondern auch zu 2-Aryltetrazolium Salzen.
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Messmer, A., Hajós, G., Fleischer, J. et al. Direct arylation of tetrazolo[1,5-a]pyridine and its benzenologues. Monatsh Chem 116, 1227–1231 (1985). https://doi.org/10.1007/BF00811256
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DOI: https://doi.org/10.1007/BF00811256