Retraction: Ruthenium(II) CNN Pincer Complexes as Efficient Catalysts in Oxidative Annulation of Aromatic Acids with Alkynes to Isocoumarins

Abstract

Retraction of ‘Ruthenium(II) CNN Pincer Complexes as Efficient Catalysts in Oxidative Annulation of Aromatic Acids with Alkynes to Isocoumarins’ by Periasamy Viswanathamurthi et al., New J. Chem., 2023, https://doi.org/10.1039/D3NJ03745B.

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The Royal Society of Chemistry hereby wholly retracts this New Journal of Chemistry article due to concerns with the reliability of the data and results.

After initial publication of the Accepted Manuscript, concerns were raised regarding the reliability of the NMR characterisation of the catalytic products presented in the electronic supplementary information (ESI). Experts in the field were consulted and agreed that the NMR provided did not correspond to the products claimed. The authors were contacted in an attempt to resolve these issues and provided alternative NMR spectra, however were unable to provide the associated raw NMR data at this time. Given the significance of these concerns, the findings presented in this paper are no longer reliable.

The authors were informed about the retraction of the article. Peter Hrobárik, Saravanan Raju, Periasamy Viswanathamurthi and Sekar Gayathri agreed with the retraction. Ramajayam Kalaipriya did not respond.

Signed: Sally Howells-Wyllie, Executive Editor, New Journal of Chemistry

Date: 23rd February 2024

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