Substituent effects in reductions of heteroaromatic cations

…, J Wiseman, P Kubinski

Index: Heyes, David; Menon, Ramesh S.; Watt; Wiseman, Jake; Kubinski, Przemyslaw Journal of Physical Organic Chemistry, 2002 , vol. 15, # 10 p. 689 - 700

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Citation Number: 6

Abstract

ABSTRACT: A set of 11 each of 2, 4, 6-triphenylpyrylium,-thiopyrylium and-N- methylpyridinium tetrafluoroborates carrying a range of substituents in the phenyl rings were prepared. First and second wave reduction potentials were determined. For the thiopyrylium series there are linear correlations between scaled potentials (E/0.05915) and summed Hammett constants for substituents in the pendant phenyl groups (= 2.29 and 3.38 for first ...