Solvent-free “green” amidation of stearic acid for synthesis of biologically active alkylamides over iron supported heterogeneous catalysts

Päivi Mäki-Arvela, Jeanne Zhu, Narendra Kumar, Kari Eränen, Atte Aho, Johan Linden, Jarno Salonen, Markus Peurla, Anton Mazur, Vladimir Matveev, Dmitry Murzin

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

8 Citeringar (Scopus)

Sammanfattning

Stearoyl ethanolamine was synthesized by amidation of stearic acid with ethanolamine in solventless conditions. Iron containing heterogeneous catalysts supported on SiO2, Al2O3, Beta (BEA), ZSM-12 (MTW) and Ferrierite (FER) were used in this work. Sn-modified Ferrierite and H-Ferrierite were also studied for comparison. Fe-modified catalysts synthesized using solid state ion-exchange and evaporation impregnation methods, were thoroughly characterized with X-ray powder diffraction, scanning electron microscope, FTIR with pyridine, nitrogen adsorption, energy dispersive X-ray microanalysis and Mössbauer spectroscopy. The highest conversion was obtained with Fe-H-FER-20 at 140 °C in 1 h giving 61% conversion and 98% selectivity towards the desired amide. The catalytic performance in terms of turnover frequency per mole of iron was achieved with the catalyst exhibiting the largest amount of Fe3+ species, optimum acidity and a relatively low Brønsted to Lewis acid site ratio.

OriginalspråkOdefinierat/okänt
Sidor (från-till)350–358
TidskriftApplied Catalysis A: General
Volym542
DOI
StatusPublicerad - 2017
MoE-publikationstypA1 Tidskriftsartikel-refererad

Nyckelord

  • Heterogenous catalysis

Citera det här