PHOTOSENSITIZED REACTIONS UTILIZING POLYMER-BOUND PHOTOSENSITIZING CATALYSTS

    公开(公告)号:CA1054971A

    公开(公告)日:1979-05-22

    申请号:CA306979

    申请日:1978-07-07

    Applicant: RESEARCH CORP

    Abstract: The present invention provides a method for the heterogeneously catalyzed singlet oxygen photooxidation of a photooxidizable organic compound capable of adding oxygen by reaction with singlet oxygen, which comprises simultaneously subjecting said photooxidizable organic compound in an inert solvent to light irradiation and contact with molecular oxygen and a polymerbound photosensitizing catalyst insoluble in the reaction medium, thereby introducing oxygen into the molecule of said photooxidizable organic compound by reaction with singlet oxygen generated from said molecular oxygen by energy transfer from said light irradiation and said polymer-bound photosensitizing catalyst, said polymer-bound photosensitizing catalyst comprising the nucleophilic displacement reaction product of (A) a polymeric material having attached thereto an available leaving group which is capable of being displaced in a nucleophilic displacement reaction with a nucleophilic reagent and (B) a photosensitizer dye containing in its molecule a nucliophilic which is capable of displacing said leaving group attached to said polymeric material in a nucleophilic displacement reaction.

    POLYMER-BOUND PHOTOSENSITIZING CATALYSTS AND PHOTOSENSITIZED REACTIONS UTILIZING SAME

    公开(公告)号:CA1044639A

    公开(公告)日:1978-12-19

    申请号:CA219037

    申请日:1975-01-30

    Applicant: RESEARCH CORP

    Abstract: Polymer-bound photosensitizing catalysts are effective in the heterogeneous catalysis of various photosensitized chemical reaction, such as photooxidation reactions, photodimerisation reactions, and photocycloaddition reactions, and are thereafter readily separated from the reaction medium and reaction products by simple filtration. The polymer-bound photosensitizing catalysts comprise the nucleophilic displacement reaction product of (A) a polymeric material having attached thereto an available leaving group which is capable of being displaced in a nucleophilic displacement reaction with a nucleophilic reagent and (B) a photosensitizing catalytic compound containing in its molecule a nucleophile which is capable of displacing the leaving group attached to the polymeric material in a nucleophilic displacement reaction.

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