Answers are grounded in this paper and cite their sources.
A methyl group at the aromatic nucleus was found to be oxidized to the corresponding carboxylic acid directly in the presence of lithium bromide under aerobic photoirradiation.
No takes yet. Share an insight, caveat, or question.
Itoh et al. (2005) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: