Yoshitaka Hamashima

8.0k total citations
147 papers, 6.9k citations indexed

About

Yoshitaka Hamashima is a scholar working on Organic Chemistry, Inorganic Chemistry and Pharmaceutical Science. According to data from OpenAlex, Yoshitaka Hamashima has authored 147 papers receiving a total of 6.9k indexed citations (citations by other indexed papers that have themselves been cited), including 114 papers in Organic Chemistry, 57 papers in Inorganic Chemistry and 45 papers in Pharmaceutical Science. Recurrent topics in Yoshitaka Hamashima's work include Asymmetric Synthesis and Catalysis (54 papers), Fluorine in Organic Chemistry (43 papers) and Asymmetric Hydrogenation and Catalysis (34 papers). Yoshitaka Hamashima is often cited by papers focused on Asymmetric Synthesis and Catalysis (54 papers), Fluorine in Organic Chemistry (43 papers) and Asymmetric Hydrogenation and Catalysis (34 papers). Yoshitaka Hamashima collaborates with scholars based in Japan, United States and China. Yoshitaka Hamashima's co-authors include Mikiko Sodeoka, Hiromichi Egami, Masakatsu Shibasaki, Motomu Kanai, Hisashi Takano, Daido Hotta, Toshiaki Suzuki, Yuji Kawato, Sylvain Lectard and Naoki Sasamoto and has published in prestigious journals such as Journal of the American Chemical Society, Angewandte Chemie International Edition and Advanced Functional Materials.

In The Last Decade

Yoshitaka Hamashima

143 papers receiving 6.8k citations

Peers

Yoshitaka Hamashima

Géraldine Masson France

Junliang Zhang China

Nuno Maulide Austria

Gang He China

David J. Procter United Kingdom

Qiuling Song China

Mauro Marigo Denmark

Peng‐Fei Xu China

René Grée France

Gwilherm Evano France

Géraldine Masson France

Yoshitaka Hamashima

6.8k ×1.1

1.3k ×0.5

867 ×0.5

1.3k ×1.0

96 ×0.4

Citations per year, relative to Yoshitaka Hamashima Yoshitaka Hamashima (= 1×) peers Géraldine Masson

Countries citing papers authored by Yoshitaka Hamashima

Since Specialization

Citations

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

Fields of papers citing papers by Yoshitaka Hamashima

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Yoshitaka Hamashima

This figure shows the co-authorship network connecting the top 25 collaborators of Yoshitaka Hamashima. A scholar is included among the top collaborators of Yoshitaka Hamashima 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 Yoshitaka Hamashima. Yoshitaka Hamashima 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

Sugiyama, Eiji, Kenji Yamashita, Yoshiteru Iinuma, et al.. (2023). Charged chiral derivatization for enantioselective imaging of d-,l -2-hydroxyglutaric acid using ion mobility spectrometry/mass spectrometry. Chemical Communications. 59(73). 10916–10919. 3 indexed citations

Sohtome, Yoshihiro, Shinsuke Komagawa, Ayako Nakamura, et al.. (2023). Experimental and Computational Investigation of Facial Selectivity Switching in Nickel–Diamine–Acetate-Catalyzed Michael Reactions. The Journal of Organic Chemistry. 88(12). 7764–7773. 1 indexed citations

Koide, Hiroyuki, Yu Hoshino, Hiromichi Egami, et al.. (2021). Design of synthetic polymer nanoparticles that inhibit glucose absorption from the intestine. Biochemical and Biophysical Research Communications. 561. 1–6. 1 indexed citations

Koide, Hiroyuki, Hiroki Ochiai, Hiromichi Egami, et al.. (2021). Enhancement of target toxin neutralization effect in vivo by PEGylation of multifunctionalized lipid nanoparticles. Biochemical and Biophysical Research Communications. 555. 32–39. 11 indexed citations

Barham, Joshua P., Yasuo Norikane, Hiromichi Egami, & Yoshitaka Hamashima. (2019). High Efficiency Microwave Flow Chemistry Towards Synthesis of Functional Materials and Pharmaceutical Cores. RiuNet (Politechnical University of Valencia). 1 indexed citations

Okamoto, Ayaka, Hiroyuki Koide, Naoki Morita, et al.. (2018). Rigorous control of vesicle-forming lipid pKa by fluorine-conjugated bioisosteres for gene-silencing with siRNA. Journal of Controlled Release. 295. 87–92. 16 indexed citations

Asakawa, Tomohiro, Atsushi Yoshida, Makoto Inai, et al.. (2016). Syntheses of methylated catechins and theaflavins using 2-nitrobenzenesulfonyl group to protect and deactivate phenol. The Journal of Antibiotics. 69(4). 299–312. 10 indexed citations

Fujishiro, Shinya, Kosuke Dodo, Eriko Iwasa, et al.. (2012). Epidithiodiketopiperazine as a pharmacophore for protein lysine methyltransferase G9a inhibitors: Reducing cytotoxicity by structural simplification. Bioorganic & Medicinal Chemistry Letters. 23(3). 733–736. 37 indexed citations

Shimizu, Ryo, Hiromichi Egami, Yoshitaka Hamashima, & Mikiko Sodeoka. (2012). Copper‐Catalyzed Trifluoromethylation of Allylsilanes. Angewandte Chemie International Edition. 51(19). 4577–4580. 199 indexed citations

10.

Yoshida, Atsushi, Tomohiro Asakawa, Yoshitaka Hamashima, et al.. (2012). Total Synthesis of (−)‐Lemonomycin. Chemistry - A European Journal. 18(36). 11192–11195. 16 indexed citations

11.

Hamashima, Yoshitaka, et al.. (2011). Catalytic Asymmetric α‐Chlorination of 3‐Acyloxazolidin‐2‐one with a Trinary Catalytic System. European Journal of Organic Chemistry. 2011(20-21). 3675–3678. 22 indexed citations

12.

Hamashima, Yoshitaka & Mikiko Sodeoka. (2011). Development of Novel Asymmetric Reactions Based on Acid-base Catalysis of Late Transition Metal Complexes. Journal of Synthetic Organic Chemistry Japan. 69(9). 972–984.

13.

Egami, Hiromichi, Shinji Kamisuki, Kosuke Dodo, et al.. (2011). Catch and release of alkyne-tagged molecules in water by a polymer-supported cobalt complex. Organic & Biomolecular Chemistry. 9(22). 7667–7667. 11 indexed citations

14.

Teng, Yuou, Katsuya Iuchi, Eriko Iwasa, et al.. (2010). Unnatural enantiomer of chaetocin shows strong apoptosis-inducing activity through caspase-8/caspase-3 activation. Bioorganic & Medicinal Chemistry Letters. 20(17). 5085–5088. 23 indexed citations

15.

Hamashima, Yoshitaka, et al.. (2010). Scope and Mechanism of Tandem Aza‐Michael Reaction/Enantioselective Protonation Using a Pd–μ‐Hydroxo Complex under Mild Conditions Buffered with Amine Salts. Chemistry - An Asian Journal. 6(2). 658–668. 20 indexed citations

16.

Sodeoka, Mikiko & Yoshitaka Hamashima. (2009). Chiral Pd aqua complex-catalyzed asymmetric C–C bond-forming reactions: a Brønsted acid–base cooperative system. Chemical Communications. 5787–5787. 43 indexed citations

17.

Hamashima, Yoshitaka, Naoki Sasamoto, Natsuko Umebayashi, & Mikiko Sodeoka. (2008). Pd^II‐Catalyzed Asymmetric Addition Reactions of 1,3‐Dicarbonyl Compounds: Mannich‐Type Reactions with N‐Boc Imines and Three‐Component Aminomethylation. Chemistry - An Asian Journal. 3(8-9). 1443–1455. 36 indexed citations

18.

Umebayashi, Natsuko, Yoshitaka Hamashima, Daisuke Hashizume, & Mikiko Sodeoka. (2008). Catalytic Enantioselective Aldol‐type Reaction of β‐Ketosters with Acetals. Angewandte Chemie International Edition. 47(22). 4196–4199. 54 indexed citations

19.

Suzuki, Toshiaki, Yoshitaka Hamashima, & Mikiko Sodeoka. (2007). Asymmetric Fluorination of α‐Aryl Acetic Acid Derivatives with the Catalytic System NiCl₂–Binap/R₃SiOTf/2,6‐Lutidine. Angewandte Chemie International Edition. 46(28). 5435–5439. 95 indexed citations

20.

Hamashima, Yoshitaka, et al.. (2004). Amine-Salt-Controlled, Catalytic Asymmetric Conjugate Addition of Various Amines and Asymmetric Protonation. Organic Letters. 6(11). 1861–1864. 115 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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