Journal of the Iranian Chemical Society

, Volume 16, Issue 2, pp 393–400 | Cite as

Citric acid stabilized on the surface of magnetic nanoparticles as an efficient and recyclable catalyst for transamidation of carboxamides, phthalimide, urea and thiourea with amines under neat conditions

  • Marzban Arefi
  • Maryam Kazemi Miraki
  • Ramin Mostafalu
  • Mohammad Satari
  • Akbar HeydariEmail author
Original Paper


Citric acid-coated magnetic nanoparticles (Fe3O4–CA NPs) were successfully prepared and characterized. This magnetic nanocatalyst was employed as an efficient, recyclable, and environmentally benign heterogeneous catalyst for the transamidation of carboxamides, phthalimide, urea and thiourea with amines. Several derivatives of formylated and transamidated products were synthesized in good to excellent yields in the presence of this catalytic system. And, the catalyst could be easily separated from the reaction mixture using an external magnet and can be reused six times without any significant loss in its catalytic activity.

Graphical abstract


Amides Transamidation Magnetic nanoparticles Citric acid Heterogeneous catalysis 



We acknowledge Tarbiat Modares University for partial support of this work. The authors express their gratitude to Dr. Dariush Saberi for revising the English language of the manuscript.

Supplementary material

13738_2018_1523_MOESM1_ESM.pdf (3.8 mb)
Supplementary material 1 (PDF 3926 KB)


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Copyright information

© Iranian Chemical Society 2018

Authors and Affiliations

  1. 1.Chemistry DepartmentTarbiat Modares UniversityTehranIran

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