Preparation of Fe 3 O 4 @C‐dots as a recyclable magnetic nanocatalyst using Elaeagnus angustifolia and its application for the green synthesis of formamidines

Author(s):  
Mahnaz Ghereghlou ◽  
Abbas Ali Esmaeili ◽  
Majid Darroudi
2021 ◽  
Author(s):  
Kousar Ghasemi ◽  
Mahdieh Darroudi ◽  
Marjan Rahimi ◽  
Hossein Rouh ◽  
Anju Gupta ◽  
...  

A new green magnetic nanocatalyst was introduced for one-pot fast synthesis of propargylamine and triazole derivatives. Chitosan bio-polymeric chains were functionalized with polyvinyl alcohol (PVA), then templated with silver nanoparticles...


RSC Advances ◽  
2015 ◽  
Vol 5 (34) ◽  
pp. 26625-26633 ◽  
Author(s):  
Mohsen Esmaeilpour ◽  
Jaber Javidi ◽  
Farzaneh Dehghani ◽  
Fatemeh Nowroozi Dodeji

Green synthesis of tetrahydrobenzo[b]pyran and dihydropyrano[3,2-c]chromene derivatives.


2021 ◽  
Author(s):  
Sahar Taheri ◽  
Majid M Heravi ◽  
Pourya Mohammadi

Abstract Green synthesis of a noble metal such as Ag nanoparticles is an enormously developed research area. In this study, biochar/Fe3O4-Ag magnetic nanocatalyst was produced via a green path by using Celery stalk as a carbon-based substrate, and Celery leaf extract as reducing and stabilizing agents to construct Ag nanoparticles. The synthesized nanocatalyst was determined using various techniques, such as UV-Vis, FT-IR spectroscopy, XRD (X-ray diffraction), SEM/EDX spectroscopy (scanning electron microscopy/energy-dispersive X-ray), TEM (transmission electron microscopy), and VSM (vibrating sample magnetometer). To survey the catalytic action of the biochar/Fe3O4-Ag nanocatalyst, it was used in the reduction reaction of disparate nitroaromatics, aldehydes, and ketones. This catalyst has demonstrated premier characteristics in terms of the amount, reusability, recoverability, activity, and structural integrity of the catalyst during the reaction. In addition, biochar/Fe3O4-Ag could be detached magnetically and recycled multiple times without significantly reducing its catalytic performance.


RSC Advances ◽  
2019 ◽  
Vol 9 (48) ◽  
pp. 28038-28052 ◽  
Author(s):  
Behzad Zeynizadeh ◽  
Soleiman Rahmani

In this study, the catalytic activity of the prepared (NiFe2O4@Cu)(H+-Mont) MNPs was studied towards the synthesis of dibenzo[b,i]xanthene tetraones 3(a–k) and hexahydroxanthene diones 5(a–k).


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