Nagarajan Ramkumar

438 total citations
19 papers, 346 citations indexed

About

Nagarajan Ramkumar is a scholar working on Organic Chemistry, Pharmaceutical Science and Molecular Biology. According to data from OpenAlex, Nagarajan Ramkumar has authored 19 papers receiving a total of 346 indexed citations (citations by other indexed papers that have themselves been cited), including 13 papers in Organic Chemistry, 6 papers in Pharmaceutical Science and 5 papers in Molecular Biology. Recurrent topics in Nagarajan Ramkumar's work include Catalytic C–H Functionalization Methods (11 papers), Fluorine in Organic Chemistry (6 papers) and Radical Photochemical Reactions (5 papers). Nagarajan Ramkumar is often cited by papers focused on Catalytic C–H Functionalization Methods (11 papers), Fluorine in Organic Chemistry (6 papers) and Radical Photochemical Reactions (5 papers). Nagarajan Ramkumar collaborates with scholars based in India, Latvia and Russia. Nagarajan Ramkumar's co-authors include Rajagopal Nagarajan, Xinhao Zhang, Yajun Li, Mong‐Feng Chiou, Wujun Jian, Haigen Xiong, Ji‐Hu Su, Hongli Bao, Janis Veliks and Dzintars Začs and has published in prestigious journals such as Journal of the American Chemical Society, Angewandte Chemie International Edition and Nature Communications.

In The Last Decade

Nagarajan Ramkumar

17 papers receiving 339 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Nagarajan Ramkumar India 10 289 62 62 38 32 19 346
Kento Ishida Japan 10 376 1.3× 49 0.8× 22 0.4× 10 0.3× 35 1.1× 20 402
Puli Saidhareddy India 6 612 2.1× 73 1.2× 29 0.5× 22 0.6× 25 0.8× 8 653
Rubén O. Torres‐Ochoa Mexico 11 340 1.2× 34 0.5× 29 0.5× 10 0.3× 23 0.7× 18 388
Elena M. Sánchez Spain 10 325 1.1× 67 1.1× 13 0.2× 13 0.3× 40 1.3× 14 396
Weiwei He China 10 312 1.1× 63 1.0× 90 1.5× 5 0.1× 89 2.8× 17 441
Camille Remeur France 6 331 1.1× 60 1.0× 31 0.5× 23 0.6× 16 0.5× 9 382
Fang‐Xin Wang China 10 815 2.8× 69 1.1× 26 0.4× 49 1.3× 32 1.0× 17 850
Kai Gao China 4 273 0.9× 47 0.8× 25 0.4× 7 0.2× 34 1.1× 7 318
Yoshimitsu Hashimoto Japan 13 371 1.3× 36 0.6× 23 0.4× 20 0.5× 44 1.4× 42 389

Countries citing papers authored by Nagarajan Ramkumar

Since Specialization
Citations

This map shows the geographic impact of Nagarajan Ramkumar's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Nagarajan Ramkumar with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Nagarajan Ramkumar more than expected).

Fields of papers citing papers by Nagarajan Ramkumar

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Nagarajan Ramkumar. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Nagarajan Ramkumar. The network helps show where Nagarajan Ramkumar may publish in the future.

Co-authorship network of co-authors of Nagarajan Ramkumar

This figure shows the co-authorship network connecting the top 25 collaborators of Nagarajan Ramkumar. A scholar is included among the top collaborators of Nagarajan Ramkumar based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Nagarajan Ramkumar. Nagarajan Ramkumar is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

19 of 19 papers shown
1.
Ramkumar, Nagarajan, et al.. (2025). Monofluoromethyl Radical Mediated Halogen-Atom Transfer. Journal of the American Chemical Society. 147(29). 25950–25959. 2 indexed citations
2.
Ramkumar, Nagarajan, et al.. (2025). Acridinium Photocatalyzed Monofluoromethyl Radical Cascade Reaction of Alkenes with Iodine(III) Reagent: A Mechanistic Study. Advanced Synthesis & Catalysis. 367(19). 1 indexed citations
3.
Ramkumar, Nagarajan & P. Monash. (2025). Fabrication of PES membranes using pure and mixed aprotic solvents (DMSO-DMAc) for enhanced membrane distillation. Journal of environmental chemical engineering. 13(6). 119571–119571.
4.
Ramkumar, Nagarajan, Л. Баумане, Dzintars Začs, & Janis Veliks. (2023). Merging Copper(I) Photoredox Catalysis and Iodine(III) Chemistry for the Oxy‐monofluoromethylation of Alkenes. Angewandte Chemie. 135(12).
5.
Ramkumar, Nagarajan, Л. Баумане, Dzintars Začs, & Janis Veliks. (2023). Merging Copper(I) Photoredox Catalysis and Iodine(III) Chemistry for the Oxy‐monofluoromethylation of Alkenes. Angewandte Chemie International Edition. 62(12). e202219027–e202219027. 23 indexed citations
6.
Ramkumar, Nagarajan, et al.. (2023). Photoredox-catalyzed direct C–H monofluoromethylation of heteroarenes. New Journal of Chemistry. 47(44). 20642–20652. 8 indexed citations
7.
Ramkumar, Nagarajan, et al.. (2023). Visible‐Light Photoredox‐Catalyzed Radical Fluoromethoxylation of Olefins. Advanced Synthesis & Catalysis. 365(9). 1405–1412. 15 indexed citations
8.
Chen, Su, Prabhat Ranjan, Nagarajan Ramkumar, et al.. (2020). Ligand‐Enabled Palladium‐Catalyzed Through‐Space C−H Bond Activation via a Carbopalladation/1,4‐Pd Migration/C−H Functionalization Sequence. Chemistry - A European Journal. 26(62). 14075–14079. 10 indexed citations
9.
Xiong, Haigen, Nagarajan Ramkumar, Mong‐Feng Chiou, et al.. (2019). Iron-catalyzed carboazidation of alkenes and alkynes. Nature Communications. 10(1). 122–122. 95 indexed citations
10.
Ramkumar, Nagarajan, Leonid G. Voskressensky, Upendra K. Sharma, & Erik V. Van der Eycken. (2019). Recent approaches to the synthesis of 2H-azirines. Chemistry of Heterocyclic Compounds. 55(9). 795–801. 8 indexed citations
11.
12.
Ramkumar, Nagarajan & Rajagopal Nagarajan. (2015). Total synthesis of calothrixin B via sequential Sonogashira coupling/copper-catalyzed oxidative cyclization. Organic & Biomolecular Chemistry. 13(45). 11046–11051. 16 indexed citations
13.
Ramkumar, Nagarajan & Rajagopal Nagarajan. (2015). Formal total synthesis of calothrixin B and its N-benzyl analogues. RSC Advances. 5(107). 87838–87840. 10 indexed citations
14.
Nagarajan, Rajagopal, et al.. (2014). Friedel–Crafts Cyclodehydration Approach toward the Synthesis of Ellipti-cine and 9-Methoxyellipticine. Synlett. 25(19). 2791–2793. 9 indexed citations
15.
Ramkumar, Nagarajan & Rajagopal Nagarajan. (2014). A new route to the synthesis of ellipticine quinone from isatin. Tetrahedron Letters. 55(5). 1104–1106. 9 indexed citations
16.
Ramkumar, Nagarajan & Rajagopal Nagarajan. (2013). Total Synthesis of Ellipticine Quinones, Olivacine, and Calothrixin B. The Journal of Organic Chemistry. 79(2). 736–741. 54 indexed citations
17.
Ramkumar, Nagarajan & Rajagopal Nagarajan. (2013). Total Synthesis of Calothrixin A and B via C–H Activation. The Journal of Organic Chemistry. 78(6). 2802–2807. 44 indexed citations
18.
Ramkumar, Nagarajan, et al.. (2012). Copper-mediated domino synthesis of pyrimido[4,5-b]carbazolones via Ullmann N-arylation and aerobic oxidative C–H amidation. Organic & Biomolecular Chemistry. 10(17). 3417–3417. 21 indexed citations
19.
Ramkumar, Nagarajan, et al.. (1997). Biodegradation of Acetic, Benzoic, Isophthalic, Toluic and Terephthalic Acids Using a Mixed Culture: Effluents of PTA Production. Process Safety and Environmental Protection. 75(4). 245–256. 20 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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