D. Worsley et al., ACID ENHANCEMENT EFFECT IN THE CLEAN OXIDATION OF TOLUENES PHOTOCATALYZED BY TIO2, Journal of the Chemical Society, Chemical Communications, (11), 1995, pp. 1119-1120
The yield of substituted benzaldehydes and benzoic acids formed by the
aerial oxidation of a range of substituted toluenes photocatalysed by
titanium dioxide in acetonitrile is dramatically improved by the addi
tion of small amounts of sulfuric acid.