Erratum: A review of the recent progress on heterogeneous catalysts for Knoevenagel condensation (Dalton Trans. (2021) 50 (4445–4469) DOI: 10.1039/d1dt00456e)

An incorrect affiliation was listed for the author Rajabathar Jothi Ramalingam. The corrected affiliations are as shown in this Correction article. The grant number IFKSURG-1440-014 was omitted from the Acknowledgements section of the article. The full acknowledgements should read as follows: Acknowledgements J. N. Appaturi would like to thank the Universiti Sains Malaysia for the Post-doctoral Fellowship provided. The author (R. J.) thanks Deputyship for Research & Innovation, “Ministry of Education” in Saudi Arabia for funding this research work through the project no. IFKSURG-1440-014. S. M. Batagarawa is grateful to Umaru Musa Yaradua University, for financial support through R and D funding. The Royal Society of Chemistry apologises for these errors and any consequent inconvenience to authors and readers.