Correction to: Archives of Pharmacal Research 10.1007/s12272-021-01351-5
The article Site-selective and metal-free C–H nitration of biologically relevant N-heterocycles written by Junghyea Moon, Hyun Ku Ji, Nayoung Ko, Harin Oh, Min Seo Park, Suho Kim, Prithwish Ghosh, Neeraj Kumar Mishra & In Su Kim was originally published Online First without Open Access. After publication the author decided to opt for Open Choice and to make the article an Open Access publication. Therefore, the copyright of the article has been changed to ©The Author(s) and the article is forthwith distributed under the terms of the Creative Commons Attribution.
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Neeraj Kumar Mishra, Email: neerajchemistry@gmail.com.
In Su Kim, Email: insukim@skku.edu.