Kei Takeda

3.2k total citations
122 papers, 2.3k citations indexed

About

Kei Takeda is a scholar working on Organic Chemistry, Molecular Biology and Spectroscopy. According to data from OpenAlex, Kei Takeda has authored 122 papers receiving a total of 2.3k indexed citations (citations by other indexed papers that have themselves been cited), including 101 papers in Organic Chemistry, 25 papers in Molecular Biology and 16 papers in Spectroscopy. Recurrent topics in Kei Takeda's work include Synthetic Organic Chemistry Methods (53 papers), Asymmetric Synthesis and Catalysis (52 papers) and Coordination Chemistry and Organometallics (18 papers). Kei Takeda is often cited by papers focused on Synthetic Organic Chemistry Methods (53 papers), Asymmetric Synthesis and Catalysis (52 papers) and Coordination Chemistry and Organometallics (18 papers). Kei Takeda collaborates with scholars based in Japan, United Kingdom and Malaysia. Kei Takeda's co-authors include Eiichi Yoshii, Kentaro Yamaguchi, Michiko Sasaki, Eiichi Kimura, Shin Aoki, Motoo Shiro, Masatoshi Kawahata, Ichirō Suzuki, Noriko Okamoto and Reiko Yanada and has published in prestigious journals such as Journal of the American Chemical Society, Angewandte Chemie International Edition and Chemical Communications.

In The Last Decade

Kei Takeda

122 papers receiving 2.2k 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 Takeda Japan 26 1.7k 502 366 234 188 122 2.3k
Chi‐Sing Lee China 27 942 0.5× 471 0.9× 222 0.6× 219 0.9× 71 0.4× 77 1.7k
Hisashi Uda Japan 25 1.7k 1.0× 662 1.3× 449 1.2× 148 0.6× 134 0.7× 158 2.5k
J. A. Joule United Kingdom 26 2.0k 1.1× 552 1.1× 114 0.3× 197 0.8× 153 0.8× 246 2.9k
Chikara Kaneko Japan 26 2.6k 1.5× 956 1.9× 241 0.7× 134 0.6× 80 0.4× 311 3.3k
A. Venkateswarlu India 17 1.9k 1.1× 896 1.8× 202 0.6× 130 0.6× 50 0.3× 30 2.4k
Jadwiga Frelek Poland 25 1.0k 0.6× 839 1.7× 634 1.7× 135 0.6× 68 0.4× 124 2.2k
Melvyn V. Sargent Australia 21 1.2k 0.7× 384 0.8× 212 0.6× 171 0.7× 76 0.4× 164 1.9k
Kay D. Onan United States 22 930 0.5× 443 0.9× 268 0.7× 233 1.0× 138 0.7× 88 1.6k
Arthur G. Schultz United States 28 2.4k 1.4× 549 1.1× 126 0.3× 156 0.7× 83 0.4× 178 2.8k
Fernando Coelho Brazil 28 1.9k 1.1× 548 1.1× 473 1.3× 68 0.3× 165 0.9× 116 2.5k

Countries citing papers authored by Kei Takeda

Since Specialization
Citations

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

Fields of papers citing papers by Kei Takeda

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Kei Takeda

This figure shows the co-authorship network connecting the top 25 collaborators of Kei Takeda. A scholar is included among the top collaborators of Kei Takeda 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 Takeda. Kei Takeda 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.
Takeda, Kei, et al.. (2020). Cranial Reconstruction Using Antibiotic-Impregnated Calcium Phosphate Bone Cement With a Titanium Mesh Sheet. Journal of Craniofacial Surgery. 31(5). 1452–1454. 6 indexed citations
2.
Kayama, Shizuo, Michiko Sasaki, Fuminori Kato, et al.. (2016). Inhibitory effects of antibiofilm compound 1 against Staphylococcus aureus biofilms. Microbiology and Immunology. 60(3). 148–159. 23 indexed citations
3.
Sasaki, Michiko, Yuko Otani, Tomohiko Ohwada, et al.. (2013). Enantiodivergent Deprotonation/Acylation of α‐Amino Nitriles. Angewandte Chemie International Edition. 52(49). 12956–12960. 11 indexed citations
4.
Sasaki, Michiko & Kei Takeda. (2013). Synthetic Potential of Configurationally Unstable Chiral Carbanions. Journal of Synthetic Organic Chemistry Japan. 71(2). 136–148. 2 indexed citations
5.
Sasaki, Michiko, et al.. (2012). Enantioselective trapping of an α-chiral carbanion of acyclic nitrile by a carbon electrophile. Chemical Communications. 48(23). 2897–2897. 20 indexed citations
6.
Suzuki, Ichirō, et al.. (2011). A novel hydrazide type organocatalyst for enantioselective Diels–Alder reactions. Organic & Biomolecular Chemistry. 9(8). 3033–3033. 7 indexed citations
7.
Sasaki, Michiko, Yasuhiro Kondo, Masatoshi Kawahata, Kentaro Yamaguchi, & Kei Takeda. (2011). Enantioselective Synthesis of Siloxyallenes from Alkynoylsilanes by Reduction and a Brook Rearrangement and Their Subsequent Trapping in a [4+2] Cycloaddition. Angewandte Chemie International Edition. 50(28). 6375–6378. 41 indexed citations
8.
Sasaki, Michiko, et al.. (2009). Stereoselective SE2′ Protonation of α‐Hydroxyallylsilanes Mediated by a Brook Rearrangement. Chemistry - A European Journal. 15(14). 3363–3366. 14 indexed citations
9.
Okamoto, Noriko, Yoshihisa Miwa, Hideki Minami, Kei Takeda, & Reiko Yanada. (2009). Concise One‐Pot Tandem Synthesis of Indoles and Isoquinolines from Amides. Angewandte Chemie International Edition. 48(51). 9693–9696. 53 indexed citations
10.
Yamawaki, Kenji, Takashi Nomura, Tatsuro Yasukata, et al.. (2007). A novel series of parenteral cephalosporins exhibiting potent activities against Pseudomonas aeruginosa and other Gram-negative pathogens: Synthesis and structure–activity relationships. Bioorganic & Medicinal Chemistry. 15(21). 6716–6732. 22 indexed citations
11.
Aoki, Shin, Yasuyuki Yamada, Ryoko Takasawa, et al.. (2006). A New Fluorescent Probe for Zinc(II): An 8‐Hydroxy‐5‐N,N‐dimethylaminosulfonylquinoline‐Pendant 1,4,7,10‐Tetraazacyclododecane. Chemistry - A European Journal. 12(35). 9066–9080. 73 indexed citations
12.
Sasaki, Michiko & Kei Takeda. (2006). Epoxysilane Rearrangement: Mechanistic Studies and Synthetic Applications. Journal of Synthetic Organic Chemistry Japan. 64(11). 1148–1158. 5 indexed citations
13.
Sasaki, Michiko, et al.. (2006). Tandem epoxysilane rearrangement/Wittig-type reactions using γ-phosphinoyl- and γ-phosphonio-α,β-epoxysilane. Tetrahedron Letters. 47(52). 9271–9273. 7 indexed citations
14.
Orimoto, Yuuichi, et al.. (2005). Ab initio MO study on [3 + 2] annulation using β-phenylthio-acryloylsilanes with alkyl methyl ketone enolates and its through-space/bond interaction analysis. Organic & Biomolecular Chemistry. 3(12). 2244–2244. 5 indexed citations
15.
Takeda, Kei, et al.. (1999). [3 + 4] Annulation using A [β-(Trimethylsilyl)acryloyl]silane and the lithium enolate of an α,β-unsaturated methyl ketone: (1R,6S,7S)-4-(tert-butyldimethylsiloxy.)-6-(trimethysilsy)bicyclo[5.4.0]undec-4-EN-2-one.. Organic Syntheses. 76(76). 199–213. 6 indexed citations
16.
Takeda, Kei, et al.. (1998). A Short Synthesis of (±)-Ricciocarpin A UsingIntramolecular Reductive Michael Reaction. Heterocycles. 47(1). 277–277. 11 indexed citations
17.
Takeda, Kei. (1997). Development of a Silicon-Mediated [3+2] Annulation and Its Application to the Synthesis of Natural Products. YAKUGAKU ZASSHI. 117(6). 368–377. 2 indexed citations
18.
Takeda, Kei. (1997). Development of Silicon-Mediated Ring-Forming Reactions for Carbocycles.. Journal of Synthetic Organic Chemistry Japan. 55(9). 774–784. 4 indexed citations
19.
Takeda, Kei, et al.. (1994). Diels-Alder reaction of α-substituted acrylates and α-(methylene)lactones: Conformation of dienophiles and endo/exo selectivity. Tetrahedron. 50(37). 10839–10848. 35 indexed citations
20.
Takeda, Kei, Eiji Kawanishi, Hitoshi Nakamura, & Eiichi Yoshii. (1991). Total synthesis of tetronolide, the aglycon of tetrocarcins. Tetrahedron Letters. 32(37). 4925–4928. 36 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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