Polyisobutylene-Supported Phosphines as Recyclable and Regenerable Catalysts and Reagents Academic Article uri icon


  • Phosphines are important as catalysts or reagents in synthesis but must be separated from products after a reaction. This report shows that polyisobutylene (PIB)-bound alkyldiaryl- and triarylphosphines are useful as catalysts in addition and allylic amination reactions or as reagents in aza-Wittig and Mitsunobu reactions. Heptane solutions of such phosphines and their oxidized byproducts can be easily separated from polar solutions of organic products, and PIB-phosphine oxides formed during a reaction can readily be reduced to PIB-phosphines for reuse.

author list (cited authors)

  • Bergbreiter, D. E., Yang, Y., & Hobbs, C. E.

publication date

  • January 1, 2011 11:11 AM