FACTORS AFFECTING DYE SENSITISED PHOTO-OXIDATION REACTIONS; THE EFFECT OF OXYGEN CONCENTRATION AND ITS USE TO PROBE THE MECHANISM OF DECARBOXYLATION OF α-OXO-CARBOXYLIC ACIDS AND ESTERS

Article abstract of DOI:10.1016/S0040-4020(01)91963-5

The dye sensitised photo-oxidation of α-oxo-carboxylic acids and esters leads to the production of carbon dioxide.The yield of carbon dioxide is dependent upon the oxygen concentration.This, together with the fact that carbon dioxide evolution can be observed in the absence of oxygen, is in accord with the view that the decarboxylation reactions involve an initial dye-substrate interaction rather than a singlet oxygen mediated reaction.