Kei Maekawa

1.1k total citations
48 papers, 904 citations indexed

About

Kei Maekawa is a scholar working on Organic Chemistry, Nature and Landscape Conservation and Ecology. According to data from OpenAlex, Kei Maekawa has authored 48 papers receiving a total of 904 indexed citations (citations by other indexed papers that have themselves been cited), including 23 papers in Organic Chemistry, 18 papers in Nature and Landscape Conservation and 8 papers in Ecology. Recurrent topics in Kei Maekawa's work include Fish Ecology and Management Studies (18 papers), Radical Photochemical Reactions (17 papers) and Synthesis and Biological Evaluation (10 papers). Kei Maekawa is often cited by papers focused on Fish Ecology and Management Studies (18 papers), Radical Photochemical Reactions (17 papers) and Synthesis and Biological Evaluation (10 papers). Kei Maekawa collaborates with scholars based in Japan, Taiwan and Italy. Kei Maekawa's co-authors include Itsuro Koizumi, Shoichiro Yamamoto, Kentaro Morita, Tadamitsu Sakurai, Tetsutaro Igarashi, Koh Hasegawa, Kanji Kubo, Shigeru Nakano, Masato Watanabe and Satoshi Kitano and has published in prestigious journals such as Tetrahedron, Catalysis Today and Combustion and Flame.

In The Last Decade

Kei Maekawa

47 papers receiving 849 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Kei Maekawa Japan 17 517 260 255 238 171 48 904
Toru Takita Japan 16 354 0.7× 181 0.7× 45 0.2× 56 0.2× 303 1.8× 56 728
R. Vitturi Italy 20 43 0.1× 226 0.9× 128 0.5× 322 1.4× 134 0.8× 79 1.1k
Yoshiaki Kai Japan 18 601 1.2× 322 1.2× 52 0.2× 298 1.3× 239 1.4× 114 1.1k
Kotaro Ichikawa Japan 13 75 0.1× 211 0.8× 79 0.3× 44 0.2× 22 0.1× 60 435
В. П. Васильев Russia 18 403 0.8× 146 0.6× 52 0.2× 408 1.7× 495 2.9× 112 1000
Célia M. Teixeira Portugal 18 206 0.4× 359 1.4× 38 0.1× 33 0.1× 199 1.2× 41 786
Changliu Wang China 13 124 0.2× 63 0.2× 409 1.6× 34 0.1× 5 0.0× 30 670
S. CABIDDU Italy 12 100 0.2× 146 0.6× 161 0.6× 8 0.0× 70 0.4× 63 460
Andrew R. Murdoch United States 12 396 0.8× 187 0.7× 17 0.1× 103 0.4× 108 0.6× 28 472
Michael Mathieson Australia 11 176 0.3× 196 0.8× 92 0.4× 72 0.3× 2 0.0× 35 522

Countries citing papers authored by Kei Maekawa

Since Specialization
Citations

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

Fields of papers citing papers by Kei Maekawa

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Kei Maekawa

This figure shows the co-authorship network connecting the top 25 collaborators of Kei Maekawa. A scholar is included among the top collaborators of Kei Maekawa 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 Kei Maekawa. Kei Maekawa 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.
Maekawa, Kei, et al.. (2024). Highly Productive Flow Synthesis for Lithiation, Borylation, and/or Suzuki Coupling Reaction. Organic Process Research & Development. 28(5). 2006–2012. 4 indexed citations
2.
Ashikari, Yosuke, et al.. (2021). Stille, Heck, and Sonogashira coupling and hydrogenation catalyzed by porous-silica-gel-supported palladium in batch and flow. Green Processing and Synthesis. 10(1). 722–728. 10 indexed citations
3.
Takahashi, Yusuke, Yosuke Ashikari, Masahiro Takumi, et al.. (2019). Synthesis of Biaryls Having a Piperidylmethyl Group Based on Space Integration of Lithiation, Borylation, and Suzuki–Miyaura Coupling. European Journal of Organic Chemistry. 2020(5). 618–622. 18 indexed citations
4.
Sakurai, Tadamitsu, et al.. (2011). Asymmetric Photocyclization Reactions of N-Acetyl-α-dehydro(1-naphthyl)alaninamides in the Presence of Chiral Amine. Heterocycles. 83(10). 2255–2255. 2 indexed citations
5.
Watanabe, Masato & Kei Maekawa. (2010). Factors affecting aggressive behaviour of spawning migratory males towards mature male parr in masu salmon Oncorhynchus masou. Journal of Fish Biology. 77(1). 162–168. 3 indexed citations
6.
7.
Kitano, Satoshi, Koh Hasegawa, & Kei Maekawa. (2009). Evidence for interspecific hybridization between native white‐spotted charr Salvelinus leucomaenis and non‐native brown trout Salmo trutta on Hokkaido Island, Japan. Journal of Fish Biology. 74(2). 467–473. 14 indexed citations
8.
9.
10.
Maekawa, Kei, Kanji Kubo, Tetsutaro Igarashi, & Tadamitsu Sakurai. (2005). Electron transfer-initiated asymmetric photocyclization of chiral auxiliary-substituted N-acyl-α-dehydro(1-naphthyl)alaninamides to the corresponding 3,4-dihydrobenzo[f]quinolinone derivatives. Tetrahedron. 61(47). 11211–11224. 19 indexed citations
11.
12.
Kawasaki, Atsushi, Kei Maekawa, Kanji Kubo, Tetsutaro Igarashi, & Tadamitsu Sakurai. (2004). A novel route to 2-imidazolin-5-one derivatives via oxidative cyclization of aryl-substituted (Z)-N-acetyl-α-dehydroalanines having a dialkylamino group. Tetrahedron. 60(42). 9517–9524. 9 indexed citations
13.
Maekawa, Kei, et al.. (2004). Divergence between 1+ jacks and 2+ migratory males of masu salmon, Oncorhynchus masou, in a lacustrine population, northern Hokkaido, Japan. Fisheries Management and Ecology. 11(5). 365–367. 4 indexed citations
14.
Sakurai, Tadamitsu, et al.. (2004). A Novel Ring-opening Reaction of (Z)-2-Methyl-4-arylmethylene-5(4H)-oxazolone Derivatives with Acylhydrazines. Heterocycles. 63(6). 1273–1273. 6 indexed citations
15.
Maekawa, Kei, et al.. (2003). Sexual differences in size‐dependent smolting rate of masu salmon, Oncorhynchus masou. Fisheries Management and Ecology. 10(4). 277–279. 1 indexed citations
16.
Sakurai, Tadamitsu, Kei Maekawa, Tetsutaro Igarashi, & Kanji Kubo. (2002). Asymmetric Photocyclizations of Chiral Auxiliary-substituted N-Acyl-a-dehydro- amino Acids into 1,2-Dihydrobenzo- quinolinone Derivatives. Heterocycles. 57(9). 1591–1591. 9 indexed citations
17.
Maekawa, Kei, et al.. (2000). Life cycle of masu salmon (Oncorhynchus masou) in Shumarinai Lake, northern Hokkaido, Japan. Hokkaido University Collection of Scholarly and Academic Papers (Hokkaido University). 1(1). 39–42. 16 indexed citations
18.
Sakurai, Tadamitsu, et al.. (2000). Electron Transfer-initiated Photocyclization of Substituted a-Dehydro(1-naphthyl)alanines. Heterocycles. 53(2). 271–271. 9 indexed citations
19.
Kohno, Yuji, et al.. (1994). A relationship between the impact sensitivity and the electronic structures for the unique NN bond in the HMX polymorphs. Combustion and Flame. 96(4). 343–350. 25 indexed citations
20.
Imai, Hiroo, et al.. (1988). [Long-term survival in malignant atrophic papulosis: a case report and review of the Japanese literature].. PubMed. 89(10). 1748–51. 2 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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