Catalytic activity in oxidation reactions of anionic iron(III) porphyrins immobilized on raw and grafted chrysotile

Journal of the Brazilian Chemical Society

Shirley Nakagaki¹  Kelly A. D. F. Castro¹  Guilherme S. Machado¹  Matilte Halma¹  Sueli M. Drechsel¹  Fernando Wypych¹ 

[1] ,Universidade Federal do Paraná Departamento de Química Curitiba PR ,Brazil

关键词: iron porphyrin;    supported catalysts;    chrysotile;    grafting;    oxidation;    catalysis;   

DOI  :  10.1590/S0103-50532006000800027

来源: SciELO

【 摘 要 】

Natural and grafted chrysotile were used as matrices for the immobilization of second generation iron porphyrins. The catalysts obtained were evaluated in the oxidation reaction of cyclohexane, using iodosylbenzene as oxidant agent. The catalyst activity for different conditions was compared with results for the same porphyrins immobilized with 3-APTS grafted disordered silica, obtained from acid-leached chrysotile. Preliminary results have shown that high activity can be obtained with short reaction times, and that the reaction is specific for alcohol.

【 授权许可】

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