%0 Journal Article %T Biosynthesised Sm2O3 NPs as an efficient catalyst for the preparation of morpholine and piperidine derivatives %J Journal of Ultrafine Grained and Nanostructured Materials %I University of Tehran %Z 2423-6845 %A Kazemi, S. Marziyeh %A Yahyazadeh, Asieh %A Nami, Navabeh %D 2022 %\ 06/01/2022 %V 55 %N 1 %P 78-88 %! Biosynthesised Sm2O3 NPs as an efficient catalyst for the preparation of morpholine and piperidine derivatives %K Morpholine %K piperidine %K Extract %K Sm2O3 nanoparticles %K Green Synthesis %R 10.22059/jufgnsm.2022.01.12 %X Biosynthesis of Sm2O3 NPs using Sm(NO3)3.6H2O and double bloom purple Rose of Sharon in ethanol, produced an efficient catalyst for the synthesis of some nitrogen-containing heterocycles such as morpholine and piperidine derivatives. Sm2O3 nanoparticles have been confirmed by FT-IR, scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), and Energy-dispersive X-ray spectroscopy (EDX). The products were obtained in moderate to good yields under mild reaction conditions and identified by CHN analysis, NMR, and FT-IR spectra. The catalyst could be easily separated from the reaction mixture by centrifugation, washed, dried, and re-entered to a fresh reaction mixture 4 times without considerable loss of activity. %U https://jufgnsm.ut.ac.ir/article_87799_775d9bbbe42103ff1c76e49dac5a1cf1.pdf