Journal of Nanoscience and Nanotechnology 2014-06-01

Organic-inorganic hybrids of imidazole complexes of zinc (II) for catalysts in the glycerolysis of urea.

Dong-Woo Kim, Dae-Won Park

Index: J. Nanosci. Nanotechnol. 14(6) , 4632-8, (2014)

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Abstract

Bis(alkylimidazole) complexes of zinc, (RIm)2ZnX2, were prepared by a metal insertion reaction. The synthesized (RIm)2ZnX2 exhibited good catalytic performance during synthesis of glycerol carbonate (GC) from glycerol and urea. (HEIm)2ZnCl2 with a hydroxyl group exhibited the highest GC yield during glycerolysis of urea owing to incorporation of acid-base bifunctional active sites. (EIm)2ZnX2 catalysts based on different halide anions showed increased reactivity as Cl- < Br- < I-, which is the order of nucleophilicity. The effects of reaction parameters such as temperature, reaction time, catalyst loading, and degree of vacuum on the reactivity were also investigated.

Related Compounds

  • Glycerol
  • Imidazole
  • Zinc
  • Urea
  • Sodium imidazolide
  • 1H-Imidazole hydr...

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