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

Journal of the Brazilian Chemical Society

Machado, Guilherme S.¹  Drechsel, Sueli M.¹  Wypych, Fernando¹  Halma, Matilte¹  Nakagaki, Shirley¹  Castro, Kelly A. D. F.¹  Universidade Federal do Paraná, Curitiba, Brazil¹ 

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

DOI  :  10.1590/S0103-50532006000800027

学科分类：化学（综合）

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】

Unknown