Issue 36, 2025
From the journal:

New Journal of Chemistry

Expression of concern: UV365 light promoted catalyst-free synthesis of pyrimido[4,5-b]quinoline-2,4-diones in aqueous-glycerol medium

Geetmani Singh Nongthombam,ab   George Kupar Kharmawlong,a   John Elisa Kumarc  and  Rishanlang Nongkhlawa  

a Organic Synthesis Lab, Centre for Advanced Studies in Chemistry, North-Eastern Hill University, Shillong-793022, India
E-mail: rlnongkhlaw@nehu.ac.in

b Applied Organic Synthesis Group, Chemical Science and Technology Division, CSIR-North East Institute of Science & Technology, Jorhat-785006, India

c Photocatalysis Lab, Centre for Advanced Studies in Chemistry, North-Eastern Hill University, Shillong-793022, India

Abstract

Expression of concern for ‘UV365 light promoted catalyst-free synthesis of pyrimido[4,5-b]quinoline-2,4-diones in aqueous-glycerol medium’ by Geetmani Singh Nongthombam et al., New J. Chem., 2018, 42, 9436–9442, https://doi.org/10.1039/C8NJ01459K.

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Article information

DOI
https://doi.org/10.1039/D5NJ90125A
Article type
Expression of Concern
Submitted
20 Aug 2025
Accepted
20 Aug 2025
First published
28 Aug 2025
This article is Open Access
Creative Commons BY license

New J. Chem., 2025,49, 15980-15980

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Expression of concern: UV365 light promoted catalyst-free synthesis of pyrimido[4,5-b]quinoline-2,4-diones in aqueous-glycerol medium

G. S. Nongthombam, G. K. Kharmawlong, J. E. Kumar and R. Nongkhlaw, New J. Chem., 2025, 49, 15980 DOI: 10.1039/D5NJ90125A

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