Use of a boehmite immobilized cobalt tetra(4-carboxyl)phenylporphyrin catalyst for the aerobic oxidation of cyclohexane to ketone and alcohol

摘要

The promoting effect of boehmite (AlOOH) on the catalyst cobalt tetra(4-carboxyl)phenylporphyrin (Co"TCPP) is reported. Co"TCPP was immobilized on AlOOH and subsequently characterized, and then the supported catalyst was used for the oxidation of cyclohexane to ketones and alcohols (i.e. KA oil). The cyclohexane conversion and the yield of KA oil were increased by 73% and 54%, respectively, compared to those achieved with unsupported Co"TCPP. Moreover, a supported catalyst with 1.5 mg of cobalt tetra(4-carboxyl)phenylporphyrin per gram of support could be reused 11 times by virtue of the promotional effect of AlOOH.