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Selective oxidation of olefins and aromatic alcohols with tert‐butylhydroperoxide catalyzed by polymer‐anchored transition‐metal complexes
Authors:S. M. Islam  Anupam Singha Roy  Paramita Mondal  Sanchita Mondal  Manir Mubarak  Dildar Hossain  Saikat Sarkar
Affiliation:1. Department of Chemistry, University of Kalyani, Kalyani, Nadia, West Bengal 741235, India;2. Department of Chemistry, Santipur College, Santipur, West Bengal 741404, India
Abstract:Three polymer‐anchored metal complexes (Co, Cu, and Pd) were synthesized and characterized. The catalytic performance of these complexes was tested for the oxidation of olefins and aromatic alcohols. These complexes showed excellent catalytic activity and high selectivity. These complexes selectively gave epoxides and aldehydes from olefins and alcohols, respectively. Individually, the effect of various solvents, oxidants, substrate oxidant molar ratios, temperatures, and catalyst amounts for the oxidation of cyclohexene and benzyl alcohol were studied. Under optimized reaction conditions, 96, 81, and 71% conversions of cyclohexene and 86, 79, and 73% conversions of benzyl alcohol were obtained with Co(II), Cu(II), and Pd(II) catalysts, respectively. The catalytic results reveal that these complexes could be recycled more than five times without much loss in activity. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2011
Keywords:catalysts  polystyrene  recycling  supports  transition metal chemistry
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