Takashi Ooi

17.4k total citations · 2 hit papers
342 papers, 14.3k citations indexed

About

Takashi Ooi is a scholar working on Organic Chemistry, Molecular Biology and Inorganic Chemistry. According to data from OpenAlex, Takashi Ooi has authored 342 papers receiving a total of 14.3k indexed citations (citations by other indexed papers that have themselves been cited), including 287 papers in Organic Chemistry, 101 papers in Molecular Biology and 90 papers in Inorganic Chemistry. Recurrent topics in Takashi Ooi's work include Asymmetric Synthesis and Catalysis (169 papers), Chemical Synthesis and Analysis (84 papers) and Asymmetric Hydrogenation and Catalysis (83 papers). Takashi Ooi is often cited by papers focused on Asymmetric Synthesis and Catalysis (169 papers), Chemical Synthesis and Analysis (84 papers) and Asymmetric Hydrogenation and Catalysis (83 papers). Takashi Ooi collaborates with scholars based in Japan, United States and Germany. Takashi Ooi's co-authors include Keiji Maruoka, Daisuke Uraguchi, Kohsuke Ohmatsu, Minoru Kameda, Yusuke Ueki, Takenori Kusumi, Mika Taniguchi, Kanae Doda, Yukitaka Uematsu and Mifune Takeuchi and has published in prestigious journals such as Science, Chemical Reviews and Proceedings of the National Academy of Sciences.

In The Last Decade

Takashi Ooi

337 papers receiving 14.1k citations

Hit Papers

align trajectories

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.

Enantioselective Amino Acid Synthesis by Chiral Phase-Transfer Catalysis

2003 738 citations Keiji Maruoka, Takashi Ooi profile →
Recent Advances in Asymmetric Phase‐Transfer Catalysis

2007 680 citations Takashi Ooi, Keiji Maruoka Angewandte Chemie International Edition profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Takashi Ooi Japan	64	12.2k	4.0k	3.8k	1.1k	889	342	14.3k
Adriaan J. Minnaard Netherlands	67	11.2k 0.9×	6.3k 1.6×	4.1k 1.1×	770 0.7×	448 0.5×	317	14.5k
Victor Snieckus Canada	60	14.9k 1.2×	2.3k 0.6×	2.3k 0.6×	636 0.6×	644 0.7×	396	17.1k
Takahiko Akiyama Japan	56	13.7k 1.1×	4.3k 1.1×	2.8k 0.7×	1.5k 1.4×	1.3k 1.4×	256	14.9k
Gerhard Raabe Germany	60	11.3k 0.9×	2.9k 0.7×	2.2k 0.6×	830 0.8×	513 0.6×	381	12.8k
Armando Córdova Sweden	70	12.7k 1.0×	3.8k 0.9×	3.8k 1.0×	515 0.5×	364 0.4×	241	14.4k
Mukund P. Sibi United States	52	11.2k 0.9×	1.9k 0.5×	2.4k 0.6×	1.1k 1.0×	667 0.8×	243	12.5k
Shigeki Matsunaga Japan	82	16.6k 1.4×	6.1k 1.5×	2.6k 0.7×	579 0.5×	675 0.8×	363	19.2k
Edwin Vedējs United States	58	10.4k 0.9×	2.6k 0.6×	2.8k 0.7×	746 0.7×	536 0.6×	247	11.9k
Marisa C. Kozlowski United States	53	9.6k 0.8×	2.2k 0.5×	1.5k 0.4×	1.1k 1.0×	388 0.4×	225	11.1k
Koichiro Oshima Japan	71	18.0k 1.5×	4.0k 1.0×	2.0k 0.5×	398 0.4×	1.5k 1.7×	562	19.4k

Countries citing papers authored by Takashi Ooi

Since Specialization

Citations

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

Fields of papers citing papers by Takashi Ooi

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Takashi Ooi

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

Ohmatsu, Kohsuke, et al.. (2024). Photocatalytic carbyne reactivity of phosphorus ylides for three-component formal cycloaddition reactions. Nature Synthesis. 3(11). 1385–1391. 5 indexed citations

Yamaguchi, Rie Shigetomi, et al.. (2024). Zwitterionic Acridinium Amidate: A Nitrogen‐Centered Radical Catalyst for Photoinduced Direct Hydrogen Atom Transfer. Angewandte Chemie International Edition. 63(43). e202404890–e202404890. 6 indexed citations

Ohmatsu, Kohsuke, et al.. (2023). Zwitterionic Diphenylphosphinyl Amidate as a Powerful Photoinduced Hydrogen-Atom-Transfer Catalyst for C–H Alkylation of Simple Alkanes. The Journal of Organic Chemistry. 88(10). 6553–6556. 6 indexed citations

Ohmatsu, Kohsuke, et al.. (2022). Hydrogen-Atom Transfer Catalysis for C–H Alkylation of Benzylic Fluorides. Organic Letters. 24(17). 3134–3137. 7 indexed citations

Ohmatsu, Kohsuke, et al.. (2021). Catalytic Asymmetric Cyanoalkylation of Electron-Deficient Olefins with Potassium Cyanide and Alkyl Halides. Journal of the American Chemical Society. 143(29). 11218–11224. 17 indexed citations

Uraguchi, Daisuke, et al.. (2021). o-Quinone methide with overcrowded olefin component as a dehydridation catalyst under aerobic photoirradiation conditions. Chemical Science. 12(8). 2778–2783. 1 indexed citations

Uraguchi, Daisuke, et al.. (2020). A Structurally Robust Chiral Borate Ion: Molecular Design, Synthesis, and Asymmetric Catalysis. Angewandte Chemie International Edition. 59(28). 11456–11461. 17 indexed citations

Uraguchi, Daisuke, et al.. (2020). A Structurally Robust Chiral Borate Ion: Molecular Design, Synthesis, and Asymmetric Catalysis. Angewandte Chemie. 132(28). 11553–11558. 2 indexed citations

Uraguchi, Daisuke, et al.. (2020). Redox-regulated divergence in photocatalytic addition of α-nitro alkyl radicals to styrenes. Chemical Communications. 56(75). 11014–11017. 19 indexed citations

10.

Uraguchi, Daisuke, et al.. (2020). Urea as a Redox-Active Directing Group under Asymmetric Photocatalysis of Iridium-Chiral Borate Ion Pairs. Journal of the American Chemical Society. 142(46). 19462–19467. 72 indexed citations

11.

Ohmatsu, Kohsuke, et al.. (2019). Zwitterionic 1,2,3-Triazolium Amidate as a Catalyst for Photoinduced Hydrogen-Atom Transfer Radical Alkylation. ACS Catalysis. 10(4). 2627–2632. 61 indexed citations

12.

Hong, Yongseok, Daisuke Uraguchi, Takashi Ooi, et al.. (2019). Inserting Nitrogen: An Effective Concept To Create Nonplanar and Stimuli-Responsive Perylene Bisimide Analogues. Journal of the American Chemical Society. 141(50). 19807–19816. 49 indexed citations

13.

Uraguchi, Daisuke, et al.. (2019). Unveiling Latent Photoreactivity of Imines. Angewandte Chemie International Edition. 59(9). 3665–3670. 34 indexed citations

14.

Uraguchi, Daisuke, et al.. (2018). Catalyst‐Enabled Site‐Divergent Stereoselective Michael Reactions: Overriding Intrinsic Reactivity of Enynyl Carbonyl Acceptors. Angewandte Chemie International Edition. 57(17). 4732–4736. 47 indexed citations

15.

Uraguchi, Daisuke, et al.. (2018). Molecular Design, Synthesis, and Asymmetric Catalysis of a Hexacoordinated Chiral Phosphate Ion. Journal of the American Chemical Society. 140(8). 2765–2768. 17 indexed citations

16.

Uraguchi, Daisuke, Kohei Yamada, Makoto Sato, & Takashi Ooi. (2018). Catalyst-Directed Guidance of Sulfur-Substituted Enediolates to Stereoselective Carbon–Carbon Bond Formation with Aldehydes. Journal of the American Chemical Society. 140(15). 5110–5117. 24 indexed citations

17.

Uraguchi, Daisuke, Keiko Kuwata, Yuh Hijikata, et al.. (2018). A femtomolar-range suicide germination stimulant for the parasitic plant Striga hermonthica. Science. 362(6420). 1301–1305. 96 indexed citations

18.

Tanaka, Naoya, Ryosuke Tsutsumi, Daisuke Uraguchi, & Takashi Ooi. (2017). N-Sulfonyl α-imino ester-derived chiral oxaziridines: catalytic asymmetric synthesis and application as a modular chiral organic oxidant. Chemical Communications. 53(52). 6999–7002. 25 indexed citations

19.

Ooi, Takashi, Tomoya Miura, Kohsuke Ohmatsu, Akira Saito, & Keiji Maruoka. (2004). Meerwein–Ponndorf–Verley alkynylation of aldehydes: Essential modification of aluminium alkoxides for rate acceleration and asymmetric synthesis. Organic & Biomolecular Chemistry. 2(22). 3312–3319. 24 indexed citations

20.

Ooi, Takashi, et al.. (1997). ORGANOALUMINUM-PROMOTED REARRANGEMENT OF EPOXYSILANES TO ALPHA -SILYLALDEHYDES. Chemistry Letters. 1997(6). 519–520. 1 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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