The role of aromatic radical cations and benzylic cations in the 2, 4, 6-triphenylpyrylium tetrafluoroborate photosensitized oxidation of ring-methoxylated benzyl …

…, G Ercolani, MA Izquierdo, MA Miranda…

Index: Branchi, Barbara; Bietti, Massimo; Ercolani, Gianfranco; Angeles Izquierdo; Miranda, Miguel A.; Stella, Lorenzo Journal of Organic Chemistry, 2004 , vol. 69, # 25 p. 8874 - 8885

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Citation Number: 23

Abstract

A steady-state and laser flash photolysis (LFP) study of the TPPBF4-photosensitized oxidation of ring-methoxylated benzyl alcohols has been carried out. Direct evidence on the involvement of intermediate benzyl alcohol radical cations and benzylic cations in these reactions has been provided through LFP experiments. The reactions lead to the formation of products (benzaldehydes, dibenzyl ethers, and diphenylmethanes) whose amounts and ...