Junji Ichikawa

6.8k total citations · 1 hit paper
208 papers, 5.6k citations indexed

About

Junji Ichikawa is a scholar working on Organic Chemistry, Pharmaceutical Science and Inorganic Chemistry. According to data from OpenAlex, Junji Ichikawa has authored 208 papers receiving a total of 5.6k indexed citations (citations by other indexed papers that have themselves been cited), including 173 papers in Organic Chemistry, 143 papers in Pharmaceutical Science and 28 papers in Inorganic Chemistry. Recurrent topics in Junji Ichikawa's work include Fluorine in Organic Chemistry (143 papers), Cyclopropane Reaction Mechanisms (45 papers) and Synthesis and Reactions of Organic Compounds (41 papers). Junji Ichikawa is often cited by papers focused on Fluorine in Organic Chemistry (143 papers), Cyclopropane Reaction Mechanisms (45 papers) and Synthesis and Reactions of Organic Compounds (41 papers). Junji Ichikawa collaborates with scholars based in Japan, United States and Switzerland. Junji Ichikawa's co-authors include Kohei Fuchibe, Takeshi Fujita, Toru Minami, Tomohiro Ichitsuka, Misaki Yokota, Yukinori Wada, Masaki Fujiwara, Kotaro Sakoda, Tatsuo Okauchi and Ryo Nadano and has published in prestigious journals such as Journal of the American Chemical Society, Angewandte Chemie International Edition and The Journal of Chemical Physics.

In The Last Decade

Junji Ichikawa

196 papers receiving 5.5k citations

Hit Papers

Transition‐Metal‐Mediated and ‐Catalyzed C−F Bond Activat... 2018 2026 2020 2023 2018 100 200 300 400
What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

  1. Transition‐Metal‐Mediated and ‐Catalyzed C−F Bond Activation by Fluorine Elimination
    2018 446 citations Takeshi Fujita, Kohei Fuchibe et al. Angewandte Chemie International Edition profile →

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Junji Ichikawa Japan 38 4.7k 3.8k 1.3k 500 284 208 5.6k
Bernard R. Langlois France 36 3.0k 0.6× 3.5k 0.9× 1.7k 1.4× 345 0.7× 107 0.4× 108 4.4k
Kálmán J. Szabó Sweden 54 7.6k 1.6× 1.5k 0.4× 2.5k 1.9× 766 1.5× 248 0.9× 179 8.3k
Sensuke Ogoshi Japan 54 6.5k 1.4× 1.7k 0.4× 2.2k 1.8× 420 0.8× 399 1.4× 191 7.3k
Chengjian Zhu China 51 7.1k 1.5× 1.3k 0.3× 1.7k 1.3× 612 1.2× 361 1.3× 160 7.9k
Xihe Bi China 50 7.7k 1.6× 1.1k 0.3× 867 0.7× 651 1.3× 251 0.9× 185 8.2k
Chuanfa Ni China 49 7.0k 1.5× 7.7k 2.0× 3.2k 2.5× 608 1.2× 89 0.3× 164 9.2k
Michael R. Collins United States 23 3.2k 0.7× 1.4k 0.4× 761 0.6× 353 0.7× 122 0.4× 36 4.0k
David A. Nagib United States 26 4.5k 1.0× 1.9k 0.5× 1.3k 1.0× 218 0.4× 329 1.2× 42 5.4k
René M. Koenigs Germany 44 6.6k 1.4× 1.1k 0.3× 869 0.7× 381 0.8× 278 1.0× 141 7.0k
Hiromichi Egami Japan 36 4.1k 0.9× 2.6k 0.7× 1.9k 1.5× 373 0.7× 278 1.0× 82 5.1k

Countries citing papers authored by Junji Ichikawa

Since Specialization
Citations

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

Fields of papers citing papers by Junji Ichikawa

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Junji Ichikawa

This figure shows the co-authorship network connecting the top 25 collaborators of Junji Ichikawa. A scholar is included among the top collaborators of Junji Ichikawa 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 Junji Ichikawa. Junji Ichikawa 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.
2.
Fuchibe, Kohei, Tomoya Matsunobu, & Junji Ichikawa. (2024). Synthesis of substituted (trifluoromethyl)alkenes: (Trifluoromethyl)alkylidenation of thioketones via CF3-thiiranes. Journal of Fluorine Chemistry. 275. 110273–110273. 1 indexed citations
3.
Mizuno, Shota, et al.. (2024). Synthesis of 3‐CF3‐Indoles from HFO‐1234ze(E) via Cross‐Coupling and Intramolecular Cyclization. Advanced Synthesis & Catalysis. 366(16). 3455–3459. 4 indexed citations
4.
Fuchibe, Kohei, Taro Matsuo, & Junji Ichikawa. (2023). Synthesis of 2-Difluoroethylated 2H-1,3-Benzoxazines via Proton-Mediated Ring Opening/Interrupted Ritter Reaction of 1,1-Difluorocyclopropanes. Organic Letters. 25(23). 4276–4280. 4 indexed citations
5.
Kinoshita, Ryo, et al.. (2022). A New Family of Tropylium Ions: Tropone–Triarylborane Complexes. European Journal of Inorganic Chemistry. 2022(33). 2 indexed citations
6.
Fujita, Takeshi, et al.. (2021). Helicene synthesis by Brønsted acid-catalyzed cycloaromatization in HFIP [(CF3)2CHOH]. Beilstein Journal of Organic Chemistry. 17. 396–403. 5 indexed citations
7.
Fujita, Takeshi, et al.. (2021). Nickel‐Catalyzed Reductive Allyl−Aryl Cross‐Electrophile Coupling via Allylic C−F Bond Activation. Chemistry - A European Journal. 28(2). e202103643–e202103643. 2 indexed citations
8.
Fuchibe, Kohei, et al.. (2021). Construction of Thienothiophene and Thienofuran Ring Systems via Ring Expansion of Difluorothiiranes Generated from Dithioesters. Organic Letters. 24(1). 169–174. 11 indexed citations
9.
Fujita, Takeshi, et al.. (2020). Copper-Catalyzed [3 + 2] Annulation of Azides with a (Difluorovinyl)zinc Complex, Fluoroacetylene Equivalent. Organic Letters. 22(23). 9253–9257. 10 indexed citations
10.
11.
Fuchibe, Kohei, et al.. (2020). Fluorinated Phenanthrenes as Aryne Precursors: PAH Synthesis Based on Domino Ring Assembly Using 1,1‐Difluoroallenes. Chemistry - An Asian Journal. 15(8). 1384–1392. 9 indexed citations
12.
Fujita, Takeshi, et al.. (2020). Facile Synthesis of 2‐Fluorobenzofurans: 5‐endo‐trig Cyclization of β,β‐Difluoro‐o‐hydroxystyrenes. Helvetica Chimica Acta. 103(11). 10 indexed citations
13.
Fujita, Takeshi, et al.. (2019). Synthesis of 3‐(Trifluoromethyl)indoles by Oxidative Cyclization of o‐Sulfonamido‐α‐(trifluoromethyl)styrenes. Asian Journal of Organic Chemistry. 8(5). 637–640. 10 indexed citations
14.
Fuchibe, Kohei, et al.. (2018). Single C−F Bond Activation of the CF3 Group with a Lewis Acid: CF3‐Cyclopropanes as Versatile 4,4‐Difluorohomoallylating Agents. Chemistry - A European Journal. 24(68). 17932–17935. 34 indexed citations
15.
Fujita, Takeshi, Kohei Fuchibe, & Junji Ichikawa. (2018). Transition‐Metal‐Mediated and ‐Catalyzed C−F Bond Activation by Fluorine Elimination. Angewandte Chemie International Edition. 58(2). 390–402. 446 indexed citations breakdown →
16.
Szostak, Michal, et al.. (2017). Special Topic Cover Page. Synthesis. 49(16). 3568–3568. 1 indexed citations
17.
18.
Fujita, Takeshi, et al.. (2017). Ring-size-selective construction of fluorine-containing carbocycles via intramolecular iodoarylation of 1,1-difluoro-1-alkenes. Beilstein Journal of Organic Chemistry. 13. 2682–2689. 13 indexed citations
19.
Saito, Kazuya, Yasuhisa Yamamura, Hideki Saitoh, et al.. (2017). Cell-quintupling: Structural phase transition in a molecular crystal, bis(trans-4–butylcyclohexyl)methanol. The Journal of Chemical Physics. 146(7). 74503–74503. 2 indexed citations
20.
Suzuki, Naoto, Takeshi Fujita, Konstantin Amsharov, & Junji Ichikawa. (2016). Aluminium-mediated aromatic C–F bond activation: regioswitchable construction of benzene-fused triphenylene frameworks. Chemical Communications. 52(88). 12948–12951. 34 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.

Explore authors with similar magnitude of impact

Breakdown of academic impact, for papers by Bernard R. Langlois Breakdown of academic impact, for papers by Kálmán J. Szabó Breakdown of academic impact, for papers by Sensuke Ogoshi Breakdown of academic impact, for papers by Chengjian Zhu Breakdown of academic impact, for papers by Xihe Bi Breakdown of academic impact, for papers by Chuanfa Ni Breakdown of academic impact, for papers by Michael R. Collins Breakdown of academic impact, for papers by David A. Nagib Breakdown of academic impact, for papers by René M. Koenigs Breakdown of academic impact, for papers by Hiromichi Egami
Rankless by CCL
2026