Cross-Linked Polyamine from Imidazolium-Based Materials: A Simple Route to Useful Catalytic Materials

Vincenzo Campisciano, Francesco Giacalone, Michelangelo Gruttadauria, Anna Maria Pia Salvo, Leonarda Francesca Liotta, Alberto Spinella, Leonarda Francesca Liotta

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


Cross-linked polyamine-based materials were easily prepared by reduction of the corresponding cross-linked imidazolium-based materials with sodium borohydride in hot ethanol. Overall, the synthetic procedure is based on the polymerization of a suitable bis-vinylimidazolium salt with or without a suitable support, such as silica or silica-coated magnetic nanoparticles (γ-Fe2O3@SiO2), followed by reduction. This simple approach allows the synthesis of materials based on a network of secondary and tertiary amines. Materials were characterized by13C cross-polarization magic angle spinning NMR (13C CPMAS NMR), proton spin-lattice relaxation times in the rotating frame (T1ÏH) and thermogravimetric analysis (TGA). Cross-linked polyamine-based materials were used as recoverable catalyst for Knoevenagel reaction. High yields of the condensation products were obtained and up to 11 cycles were carried out.
Original languageEnglish
Pages (from-to)1352-1358
Number of pages7
JournalEuropean Journal of Organic Chemistry
Publication statusPublished - 2018

All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry
  • Organic Chemistry

Fingerprint Dive into the research topics of 'Cross-Linked Polyamine from Imidazolium-Based Materials: A Simple Route to Useful Catalytic Materials'. Together they form a unique fingerprint.

Cite this