Use of an isotactic-propylene/hexene copolymer as a new, versatile, soluble support

Abstract

The use of isotactic-poly(propylene-co-hexene) (iPPH) as new polymeric scaffold for synthesis as well as a phase-selective, soluble polymer support for homogeneous catalysis is described. It was possible to functionalize olefin-terminated iPPH using standard organic transformations. Each derivative could be isolated and purified using typical precipitations into a minimum amount of polar solvent, negating the need for wasteful work up and chromatographic procedures. Furthermore, it was demonstrated that an iPPH-supported DMAP could serve as a recoverable, recyclable catalyst. Published 2013. J. Polym. Sci., Part A: Polym. Chem. 2014, 52, 600-605 A new isotactic-poly(propylene-co-hexene) (iPPH)-supported catalyst is described. Soluble polymer-supports are typically used for catalyst recovery and reuse using either one of two methods (solid/liquid or liquid/liquid), depending on the polymer's solubility. The need for robust, versatile supports that can be used for more than one type of recovery is evident. The iPPH-supported DMAP catalyst can be used in both liquid/liquid and liquid/solid recovery techniques, which allow for its recovery and reuse. © Published 2013.