ABSTRACT OF THE DISCLOSUREThe present invention provides a method for the hetero-geneously catalyzed singlet oxygen photooxidation of a photo-oxidizable organic compound capable of adding oxygen by reactionwith singlet oxygen, which comprises simultaneously subjectingsaid photooxidizable organic compound in an inert solvent tolight irradiation and contact with molecular oxygen and a polymer-bound photosensitizing catalyst insoluble in the reaction medium,thereby introducing oxygen into the molecule of said photo-oxidizable organic compound by reaction with singlet oxygengenerated from said molecular oxygen by energy transfer from saidlight irradiation and said polymer-bound photosensitizing catalyst,said polymer-bound photosensitizing catalyst comprising thenucleophilic displacement reaction product of (A) a polymericmaterial having attached thereto an available leaving group whichis capable of being displaced in a nucleophilic displacementreaction with a nucleophilic reagent and (B) a photosensitizerdye containing in its molecule a nucliophilic which is capable ofdisplacing said leaving group attached to said polymeric materialin a nucleophilic displacement reaction.
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