Mani, S., Mohamed, M. A. F., Karakkakal, A. K., & Khan, S. A. P. M. (2014). FeCl3-catalysed C-N coupling reaction between cyclic ethers and heterocyclic amines. European Journal of Chemistry, 5(4), 612–617. https://doi.org/10.5155/eurjchem.5.4.612-617.1108