Titanomagnetite functionalized by amino acid-based ionic liquid and cobalt (Fe3-xTixO4-SiO2@TrpBu3+I−-Co(II)): A reusable bio-nanocomposite for the synthesis of aryl thioamides

Yielzoleh, Fatemeh Molaei; Nikoofar, Kobra

doi:10.1016/j.molstruc.2022.132836

Cited by 2 publications

(1 citation statement)

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“…In continuation of our research field in synthesizing of amino-acid based catalysts and examining their catalytic efficacy in multi-component reactions under green conditions 44 – 47 , herein we prepared a novel magnetized inorganic-bioorganic nanohybrid (nano FeAl 2 O 4 -SiO 2 @[ DL -Ala][NO 3 ]) via step-by-step functionalization of spinel FeAl 2 O 4 core by silica and alaninium nitrate ionic liquid ([ DL -Ala][NO 3 ]). The alanine-based multi-layered nanostructure characterized by FT-IR, VSM, FESEM, EDAX, TEM, TGA/DSC, XRF, and XRD techniques.…”

Section: Introductionmentioning

confidence: 99%

Nano silicated-FeAl2O4 functionalized by DL-alaninium nitrate ionic liquid (FeAl2O4-SiO2@[DL-Ala][NO3]) as versatile promotor for aqua-mediated synthesis of spiro[chromenopyrazole-indene-triones and spiro[chromenopyrazole-indoline-diones

Molaei Yielzoleh,

Nikoofar

2024

Sci Rep

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In this work, the spinel FeAl2O4 was prepared and functionalized step-by-step with silica and alaninium nitrate ionic liquid ([DL-Ala][NO3]) to produce a bio-based multi-layered nanostructure (nano FeAl2O4-SiO2@[DL-Ala][NO3]). The obtained magnetized inorganic-bioorganic nanohybrid characterized by Fourier transform infrared spectroscopy (FT-IR), vibrating-sample magnetometry (VSM), field emission scanning electron microscopy (FESEM), energy-dispersive X-ray spectroscopy (EDAX), transmission electron microscopy (TEM), thermogravimetric analysis/differential scanning calorimetry (TGA/DSC), X-ray fluorescence (XRF), and X-Ray diffraction (XRD) analysis. A facile synthesis of some tricyclic dihydro-spiro[chromeno[2,3-c]pyrazole-4,2′-indene]triones and dihydro-spiro[chromeno[2,3-c]pyrazole-4,3′-indoline]diones via domino four-component one-pot reaction of various hydrazine derivatives, ethyl acetoacetate, heterocyclic 1,2-ketones (ninhydrin, isatin, 5-bromoisatin) and cyclic 1,3-diketones (dimedone and 1,3-cyclohexanedine), examined in the presence of nano FeAl2O4-SiO2@[DL-Ala][NO3] nanohybrid in refluxing aqueous media, successfully. The multi-aspect characteristics of the nanohybrid which consist of magnetized inorganic and bioorganic parts, could be the reason of its special catalytic efficacy. The recovery and reusability of the FeAl2O4-SiO2@[DL-Ala][NO3] magnetized nanoparticles (MNPs) were performed in two runs without significant activity loss.

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Section: Introductionmentioning

confidence: 99%