Expression of concern: Picolylamine–Ni(ii) complex attached on 1,3,5-triazine-immobilized silica-coated Fe3O4 core/shell magnetic nanoparticles as an environmentally friendly and recyclable catalyst for the one-pot synthesis of substituted pyridine derivatives
Sobhan Rezayati, Fatemeh Kalantari, Ali Ramazani
TL;DR
This paper expresses concern about a study that claims a new magnetic nanoparticle catalyst is effective for making pyridine compounds in an eco-friendly way.
Contribution
The paper raises concerns about the validity or reliability of the original study's findings.
Findings
The original study claimed a new catalyst for pyridine synthesis.
This paper questions the accuracy or reproducibility of those claims.
It highlights the need for further verification of the results.
Abstract
Expression of concern for ʻPicolylamine–Ni(ii) complex attached on 1,3,5-triazine-immobilized silica-coated Fe3O4 core/shell magnetic nanoparticles as an environmentally friendly and recyclable catalyst for the one-pot synthesis of substituted pyridine derivativesʼ by Sobhan Rezayati et al., RSC Adv., 2023, 13, 12869–12888, https://doi.org/10.1039/D3RA01826A.
Genes, proteins, chemicals, diseases, species, mutations and cell lines named across the full text — each resolved to its canonical identifier and authoritative record.
- —Iran National Science Foundation10.13039/501100003968
- —University of Zanjan10.13039/501100008854
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Taxonomy
TopicsSynthesis and Characterization of Heterocyclic Compounds · Multicomponent Synthesis of Heterocycles · Synthesis and biological activity
The Royal Society of Chemistry is publishing this expression of concern in order to alert readers that concerns have been raised regarding the integrity of the XRD data in Fig. 5.
The Royal Society of Chemistry has asked the affiliated institution to investigate this matter and establish whether the data provided by the authors provide an accurate representation of the experiments that were conducted and to confirm the integrity and reliability of the data provided.
An expression of concern will continue to be associated with the article until we receive conclusive evidence regarding the reliability of the reported data.
Laura Fisher
28th February 2025
Executive Editor, RSC Advances