Open Access Article
This Open Access Article is licensed under a Creative Commons Attribution 3.0 Unported Licence
DOI: 10.1039/D4RA90021A
(Expression of Concern)
RSC Adv., 2024, 14, 8039-8039
Expression of concern: An efficient one pot three-component nanocatalyzed synthesis of spiroheterocycles using TiO2 nanoparticles as a heterogeneous catalyst
Yogesh Kumar Tailora,
Sarita Khandelwala,
Yogita Kumarib,
Kamlendra Awasthib and
Mahendra Kumar*a
aDepartment of Chemistry, University of Rajasthan, Jaipur, India. E-mail: mahendrakpathak@gmail.com; Tel: +91 0141 2702720
bSoft Materials Lab, Department of Physics, Malaviya National Institute of Technology, Jaipur, India
Received
1st March 2024
, Accepted 1st March 2024
First published on 7th March 2024
Abstract
Expression of concern for ‘An efficient one pot three-component nanocatalyzed synthesis of spiroheterocycles using TiO2 nanoparticles as a heterogeneous catalyst’ by Yogesh Kumar Tailor et al., RSC Adv., 2015, 5, 46415–46422, https://doi.org/10.1039/C5RA04863J.
In the original article, the authors recognise concerns with the integration values in the 1H NMR spectra for compounds 4e, 4j, 4l, 4n, 5e, 5j, 5l, 5m and 5n. The integration values for these compounds do not match the reported structures. This is currently under consideration, but in its current form, the 1H NMR data for these compounds should not be considered to be correct.
An update will be provided as soon as possible.
Dr Laura Fisher
1st March 2024
Executive Editor, RSC Advances
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