Juho Helaja

1.6k total citations
62 papers, 1.4k citations indexed

About

Juho Helaja is a scholar working on Organic Chemistry, Materials Chemistry and Molecular Biology. According to data from OpenAlex, Juho Helaja has authored 62 papers receiving a total of 1.4k indexed citations (citations by other indexed papers that have themselves been cited), including 44 papers in Organic Chemistry, 18 papers in Materials Chemistry and 16 papers in Molecular Biology. Recurrent topics in Juho Helaja's work include Porphyrin and Phthalocyanine Chemistry (15 papers), Catalytic C–H Functionalization Methods (14 papers) and Catalytic Alkyne Reactions (14 papers). Juho Helaja is often cited by papers focused on Porphyrin and Phthalocyanine Chemistry (15 papers), Catalytic C–H Functionalization Methods (14 papers) and Catalytic Alkyne Reactions (14 papers). Juho Helaja collaborates with scholars based in Finland, Germany and United Kingdom. Juho Helaja's co-authors include Paavo H. Hynninen, Mikko Muuronen, Nikolai V. Tkachenko, Andrei Y. Tauber, Martin Nieger, Helge Lemmetyinen, Tom Wirtanen, Ilkka Kilpeläinen, Michele Melchionna and Jari Kavakka and has published in prestigious journals such as Proceedings of the National Academy of Sciences, Journal of the American Chemical Society and Angewandte Chemie International Edition.

In The Last Decade

Juho Helaja

60 papers receiving 1.4k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Juho Helaja Finland 23 916 519 261 191 144 62 1.4k
Pablo Wessig Germany 23 1.5k 1.7× 462 0.9× 416 1.6× 141 0.7× 145 1.0× 119 2.1k
Vladimir S. Tyurin Russia 14 900 1.0× 830 1.6× 196 0.8× 317 1.7× 82 0.6× 73 1.5k
Xiao‐Yang Chen China 23 870 0.9× 494 1.0× 167 0.6× 192 1.0× 105 0.7× 40 1.4k
Raúl Pérez–Ruíz Spain 23 1.0k 1.1× 638 1.2× 232 0.9× 104 0.5× 117 0.8× 69 1.6k
Rika Tanaka Japan 22 875 1.0× 521 1.0× 113 0.4× 433 2.3× 111 0.8× 67 1.5k
Yutaka Takaguchi Japan 23 823 0.9× 780 1.5× 181 0.7× 131 0.7× 85 0.6× 128 1.6k
Jean‐Marc Vincent France 25 1.2k 1.3× 417 0.8× 378 1.4× 418 2.2× 45 0.3× 75 1.8k
J. Schatz Germany 23 992 1.1× 319 0.6× 289 1.1× 151 0.8× 125 0.9× 52 1.3k
Giovanni Occhipinti Norway 21 1.4k 1.5× 353 0.7× 326 1.2× 468 2.5× 94 0.7× 42 1.9k
Michelle Lawton South Africa 8 548 0.6× 284 0.5× 147 0.6× 214 1.1× 56 0.4× 11 1.0k

Countries citing papers authored by Juho Helaja

Since Specialization
Citations

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

Fields of papers citing papers by Juho Helaja

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Juho Helaja

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

All Works

20 of 20 papers shown
1.
Rodríguez, Pilar, et al.. (2025). Photoredox Catalytic Synthesis of Indoles via Direct N–H Activation to Generate Putative Aminyl Radicals. Organic Letters. 27(37). 10537–10541.
2.
Koohgard, Mehdi, Natalia Del Rio, Hang Li, et al.. (2024). β-Cyclodextrin–NHC–Au(I)-Catalyzed Enantioconvergent 1,5-Enyne Cycloisomerizations. Organic Letters. 26(27). 5817–5821. 5 indexed citations
3.
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5.
Melchionna, Michele, Tiziano Montini, Paolo Fornasiero, et al.. (2023). Chemically Activated Spruce Organosolv Lignin as a Carbocatalyst for Heterogeneous Oxidative Dehydrogenations in the Liquid Phase. ACS Catalysis. 13(17). 11362–11375. 3 indexed citations
6.
Frindy, Sana, et al.. (2023). A metal-free carbon catalyst for oxidative dehydrogenation of aryl cyclohexenes to produce biaryl compounds. Proceedings of the National Academy of Sciences. 120(31). e2303564120–e2303564120. 5 indexed citations
7.
8.
Wirtanen, Tom, et al.. (2022). Carbon Materials as Catalytic Tools for Oxidative Dehydrogenations and Couplings in Liquid Phase. Synthesis. 55(1). 45–61. 5 indexed citations
9.
Helaja, Juho, et al.. (2021). Phenanthrenequinone-Sensitized Photocatalytic Synthesis of Polysubstituted Quinolines from 2-Vinylarylimines. Organic Letters. 24(1). 274–278. 29 indexed citations
10.
Nieger, Martin, Tao Hu, Stefan Taubert, et al.. (2021). Divergent Carbocatalytic Routes in Oxidative Coupling of Benzofused Heteroaryl Dimers: A Mechanistic Update. Chemistry - A European Journal. 27(16). 5283–5291. 10 indexed citations
11.
Wirtanen, Tom, Tao Hu, Sami Hietala, et al.. (2021). Air oxidized activated carbon catalyst for aerobic oxidative aromatizations of N-heterocycles. Catalysis Science & Technology. 11(17). 5962–5972. 17 indexed citations
12.
Muuronen, Mikko, et al.. (2020). Dual H-bond activation of NHC–Au(i)–Cl complexes with amide functionalized side-arms assisted by H-bond donor substrates or acid additives. Chemical Communications. 56(93). 14697–14700. 26 indexed citations
13.
Wirtanen, Tom, Mikko Muuronen, Michele Melchionna, et al.. (2019). Carbocatalytic Oxidative Dehydrogenative Couplings of (Hetero)Aryls by Oxidized Multi‐Walled Carbon Nanotubes in Liquid Phase. Chemistry - A European Journal. 25(53). 12288–12293. 15 indexed citations
14.
Muuronen, Mikko, et al.. (2019). Visible-Light-Photocatalyzed Reductions of N-Heterocyclic Nitroaryls to Anilines Utilizing Ascorbic Acid Reductant. Organic Letters. 21(10). 3764–3768. 31 indexed citations
15.
Muuronen, Mikko, et al.. (2017). Gold(I)-Catalyzed 1,3-O-Transposition of Ynones: Mechanism and Catalytic Acceleration with Electron-Rich Aldehydes. ACS Catalysis. 8(2). 960–967. 11 indexed citations
16.
Wirtanen, Tom, et al.. (2017). Photoreductive Removal of O-Benzyl Groups from Oxyarene N-Heterocycles Assisted by O-Pyridine–pyridone Tautomerism. The Journal of Organic Chemistry. 82(24). 13756–13767. 25 indexed citations
17.
Muuronen, Mikko, et al.. (2014). Gold‐Catalyzed Conversion of Aryl‐ and Alkyl‐Substituted 1‐(o‐Aminophenyl)‐2‐propyn‐1‐ones to the Corresponding 2‐Substituted 4‐Quinolones. European Journal of Organic Chemistry. 2014(19). 4044–4052. 54 indexed citations
18.
Wirtanen, Tom, Mikko Muuronen, Michele Melchionna, Michael Patzschke, & Juho Helaja. (2014). Gold(III)-Catalyzed Enynamine–Cyclopentadiene Cycloisomerization with Chirality Transfer: An Experimental and Theoretical Study Indicating Involvement of Dual Au(III) Push–Pull Assisted cis–trans Isomerism. The Journal of Organic Chemistry. 79(21). 10269–10283. 11 indexed citations
19.
Muuronen, Mikko, Jesús E. Perea‐Buceta, Martin Nieger, Michael Patzschke, & Juho Helaja. (2012). Cationic Gold Catalysis with Pyridine-Tethered Au(III) NHC-Carbenes: An Experimental and DFT Computational Study. Organometallics. 31(11). 4320–4330. 35 indexed citations
20.
Helaja, Juho, et al.. (1995). Solution structures of 132-methoxychlorophyll a epimers. Journal of Molecular Structure. 354(1). 71–78. 6 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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