Roopender Kumar

1.2k total citations
21 papers, 989 citations indexed

About

Roopender Kumar is a scholar working on Organic Chemistry, Inorganic Chemistry and Molecular Biology. According to data from OpenAlex, Roopender Kumar has authored 21 papers receiving a total of 989 indexed citations (citations by other indexed papers that have themselves been cited), including 21 papers in Organic Chemistry, 6 papers in Inorganic Chemistry and 4 papers in Molecular Biology. Recurrent topics in Roopender Kumar's work include Catalytic Alkyne Reactions (9 papers), Catalytic C–H Functionalization Methods (7 papers) and Radical Photochemical Reactions (7 papers). Roopender Kumar is often cited by papers focused on Catalytic Alkyne Reactions (9 papers), Catalytic C–H Functionalization Methods (7 papers) and Radical Photochemical Reactions (7 papers). Roopender Kumar collaborates with scholars based in Switzerland, United Kingdom and Germany. Roopender Kumar's co-authors include Cristina Nevado, Matthew J. Gaunt, Anthony Linden, Nils J. Flodén, William G. Whitehurst, Manuel Höfer, Alexandre Genoux, Thomas Fox, Enrique Gómez‐Bengoa and Jean‐Philippe Krieger and has published in prestigious journals such as Nature, Journal of the American Chemical Society and Angewandte Chemie International Edition.

In The Last Decade

Roopender Kumar

21 papers receiving 982 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Roopender Kumar Switzerland	15	867	240	154	151	120	21	989
Amanda J. Hickman United States	8	1.1k 1.2×	445 1.9×	155 1.0×	168 1.1×	18 0.1×	10	1.3k
Ji‐Kang Jin China	15	514 0.6×	254 1.1×	142 0.9×	242 1.6×	39 0.3×	23	802
Faqiang Leng China	11	321 0.4×	93 0.4×	86 0.6×	127 0.8×	26 0.2×	19	460
Ken‐ichiro Kanno Japan	21	931 1.1×	157 0.7×	86 0.6×	122 0.8×	105 0.9×	48	1000
Rajarshi Mondal Canada	11	211 0.2×	159 0.7×	61 0.4×	99 0.7×	76 0.6×	24	382
Patrick R. Melvin United States	12	830 1.0×	275 1.1×	77 0.5×	54 0.4×	67 0.6×	19	959
Ralf Karch Germany	10	751 0.9×	214 0.9×	115 0.7×	34 0.2×	28 0.2×	13	825
Sonia Chabbra Germany	13	494 0.6×	120 0.5×	92 0.6×	83 0.5×	85 0.7×	19	672
Jeffrey D. Sears United States	12	495 0.6×	191 0.8×	73 0.5×	63 0.4×	16 0.1×	16	586
Jay J. Dunsford United Kingdom	17	772 0.9×	160 0.7×	27 0.2×	109 0.7×	30 0.3×	24	838

Countries citing papers authored by Roopender Kumar

Since Specialization

Citations

This map shows the geographic impact of Roopender Kumar'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 Roopender Kumar with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Roopender Kumar more than expected).

Fields of papers citing papers by Roopender Kumar

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Roopender Kumar. 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 Roopender Kumar. The network helps show where Roopender Kumar may publish in the future.

Co-authorship network of co-authors of Roopender Kumar

This figure shows the co-authorship network connecting the top 25 collaborators of Roopender Kumar. A scholar is included among the top collaborators of Roopender Kumar 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 Roopender Kumar. Roopender Kumar is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Kumar, Roopender, et al.. (2024). Modular synthesis of α-branched secondary alkylamines via visible-light-mediated carbonyl alkylative amination. Chemical Science. 15(36). 14888–14898. 7 indexed citations

Kumar, Roopender, et al.. (2024). Multicomponent Synthesis of α-Branched Amines via a Zinc-Mediated Carbonyl Alkylative Amination Reaction. Journal of the American Chemical Society. 146(13). 9045–9062. 24 indexed citations

Kumar, Roopender, et al.. (2024). Modular Synthesis of Heterobenzylic Amines via Carbonyl Azinylative Amination. Angewandte Chemie International Edition. 63(42). e202408287–e202408287. 1 indexed citations

Kumar, Roopender, et al.. (2022). C(sp³)–C(sp³) coupling of non-activated alkyl-iodides with electron-deficient alkenes via visible-light/silane-mediated alkyl-radical formation. Chemical Science. 13(44). 13241–13247. 29 indexed citations

Kumar, Roopender, et al.. (2021). Visible light-mediated radical fluoromethylation via halogen atom transfer activation of fluoroiodomethane. Chemical Science. 12(38). 12812–12818. 43 indexed citations

Kumar, Roopender, et al.. (2021). Visible-Light-Mediated Carbonyl Alkylative Amination to All-Alkyl α-Tertiary Amino Acid Derivatives. Journal of the American Chemical Society. 143(3). 1598–1609. 65 indexed citations

Kumar, Roopender, Nils J. Flodén, William G. Whitehurst, & Matthew J. Gaunt. (2020). A general carbonyl alkylative amination for tertiary amine synthesis. Nature. 581(7809). 415–420. 148 indexed citations

Kumar, Roopender, et al.. (2020). Visible-light mediated carbonyl trifluoromethylative amination as a practical method for the synthesis of β-trifluoromethyl tertiary alkylamines. Chemical Science. 11(44). 12089–12094. 20 indexed citations

Kumar, Sudhir, Roopender Kumar, Estı́baliz Merino, et al.. (2020). Phosphorescent κ³‐(N^C^C)‐Gold(III) Complexes: Synthesis, Photophysics, Computational Studies and Application to Solution‐Processable OLEDs. Chemistry - A European Journal. 26(72). 17604–17612. 14 indexed citations

10.

Kumar, Roopender, Mrinal K. Bera, Reinhold Zimmer, et al.. (2020). Alkoxyallene‐Based LANCA Three‐Component Synthesis of 1,2‐Diketones, Quinoxalines, and Unique Isoindenone Dimers and a Computational Study of the Isoindenone Dimerization. European Journal of Organic Chemistry. 2020(11). 1753–1763. 4 indexed citations

11.

Lechel, Tilman, Roopender Kumar, Mrinal K. Bera, Reinhold Zimmer, & Hans‐Ulrich Reißig. (2019). The LANCA three-component reaction to highly substituted β-ketoenamides – versatile intermediates for the synthesis of functionalized pyridine, pyrimidine, oxazole and quinoxaline derivatives. Beilstein Journal of Organic Chemistry. 15. 655–678. 13 indexed citations

12.

Kumar, Roopender, Jean‐Philippe Krieger, Enrique Gómez‐Bengoa, et al.. (2017). The First Gold(III) Formate: Evidence for β‐Hydride Elimination. Angewandte Chemie International Edition. 56(42). 12862–12865. 44 indexed citations

13.

Kumar, Roopender, Jean‐Philippe Krieger, Enrique Gómez‐Bengoa, et al.. (2017). The First Gold(III) Formate: Evidence for β‐Hydride Elimination. Angewandte Chemie. 129(42). 13042–13045. 15 indexed citations

14.

Kumar, Roopender, Anthony Linden, & Cristina Nevado. (2016). Evidence for Direct Transmetalation of Au^III–F with Boronic Acids. Journal of the American Chemical Society. 138(42). 13790–13793. 70 indexed citations

15.

Kumar, Roopender & Cristina Nevado. (2016). Cyclometalated Gold(III) Complexes: Synthesis, Reactivity, and Physicochemical Properties. Angewandte Chemie International Edition. 56(8). 1994–2015. 161 indexed citations

16.

Höfer, Manuel, Alexandre Genoux, Roopender Kumar, & Cristina Nevado. (2016). Gold‐Catalyzed Direct Oxidative Arylation with Boron Coupling Partners. Angewandte Chemie International Edition. 56(4). 1021–1025. 88 indexed citations

17.

Kumar, Roopender & Cristina Nevado. (2016). Cyclometallierte Au^III‐Komplexe: Synthese, Reaktivität und physikalisch‐chemische Eigenschaften. Angewandte Chemie. 129(8). 2024–2046. 51 indexed citations

18.

Kumar, Roopender, Anthony Linden, & Cristina Nevado. (2015). Luminescent (N^C^C) Gold(III) Complexes: Stabilized Gold(III) Fluorides. Angewandte Chemie International Edition. 54(48). 14287–14290. 99 indexed citations

19.

Kumar, Roopender, Anthony Linden, & Cristina Nevado. (2015). Luminescent (N^C^C) Gold(III) Complexes: Stabilized Gold(III) Fluorides. Angewandte Chemie. 127(48). 14495–14498. 49 indexed citations

20.

Eidamshaus, Christian, Roopender Kumar, Mrinal K. Bera, & Hans‐Ulrich Reißig. (2011). A practical two-step procedure for the preparation of enantiopure pyridines: Multicomponent reactions of alkoxyallenes, nitriles and carboxylic acids followed by a cyclocondensation reaction. Beilstein Journal of Organic Chemistry. 7. 962–975. 14 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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