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A highly efficient oxidation of cyclohexane to cyclohexanone is accomplished over phenanthroline–CuCl2 catalyst in relatively mild conditions. This study realized nearly 100% selectivity for cyclohexanone at 24.4% conversion of cyclohexane. The reaction has been studied by various parameters like performance of copper(II) salts, effect of solvents, influence of bases, the ratio of o-phenanthroline: CuCl2, and reaction time. In order to further study this reaction system, the possible mechanism was proposed.

In this work, we have developed a simple and efficient approach to the degradation of organic dyes using ethylenediamine-CuCl(2) complex as the catalyst under basic conditions. Rhodamine B has been used as model compound and all experiments were carried out at normal atmospheric pressure and temperature (25+/-1 degrees C) under open-wide system. The different pH values from 7.0 to 14.0 and the catalyst recycling were investigated. The results indicated that ethylenediamine-CuCl(2) was an effective catalyst in the degradation of Rhodamine B at pH 7.0-12.0. It would provide a useful insight into the development of new routes in organic wastewater treatment.