Journal
JOURNAL OF THE BRAZILIAN CHEMICAL SOCIETY
Volume 17, Issue 8, Pages 1672-1678Publisher
SOC BRASILEIRA QUIMICA
DOI: 10.1590/S0103-50532006000800027
Keywords
iron porphyrin; supported catalysts; chrysotile; grafting; oxidation; catalysis
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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.
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