Bromamine-T mediated aziridination of olefins with a new polymer supportedManganese(II) complex as catalyst

Chloromethylated styrene-divinyl benzene of 8% cross-link was functionalize d using o-phenylene diamine and finally it was treated with Mn(II) for the formation of metal complex on the surface. The metal content was estimated using atomic absorption spectroscopy. The thermal stability of the catalyst was seen by the use of DTA-TG analyses and the catalyst was found to be st able up to similar to 125 degrees C. The modern spectroscopic methods such as FT-LR, ESR were used in order to confirm the probable structure of the c atalyst. The catalytic activity of this supported Mn(II)-complex was invest igated for aziridination of olefins with bromamine-T as the source of nitro gen; The catalyst was found to be effective in this reaction and could be r eused with no substantial loss of activity for up to three cycles. (C) 2000 Elsevier Science B.V. All rights reserved.