Masaji Hayashi

446 total citations
20 papers, 322 citations indexed

About

Masaji Hayashi is a scholar working on Organic Chemistry, Molecular Biology and Immunology and Allergy. According to data from OpenAlex, Masaji Hayashi has authored 20 papers receiving a total of 322 indexed citations (citations by other indexed papers that have themselves been cited), including 13 papers in Organic Chemistry, 7 papers in Molecular Biology and 6 papers in Immunology and Allergy. Recurrent topics in Masaji Hayashi's work include Asymmetric Synthesis and Catalysis (8 papers), Cell Adhesion Molecules Research (6 papers) and Chemical Synthesis and Reactions (4 papers). Masaji Hayashi is often cited by papers focused on Asymmetric Synthesis and Catalysis (8 papers), Cell Adhesion Molecules Research (6 papers) and Chemical Synthesis and Reactions (4 papers). Masaji Hayashi collaborates with scholars based in Japan and United States. Masaji Hayashi's co-authors include Teruaki Mukaiyama, Hiroshi Miyauchi, Shinichiro J. Tojo, Kazuto Yamada, Masanori Itoh, Shiro Terashima, James C. Paulson, Jody Schultz, Kenji Koga and Shin‐ichi Yokota and has published in prestigious journals such as Journal of Medicinal Chemistry, The Journal of Organic Chemistry and European Journal of Pharmacology.

In The Last Decade

Masaji Hayashi

20 papers receiving 306 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Masaji Hayashi Japan 12 160 154 104 47 25 20 322
Gensuke Takayama Japan 11 75 0.5× 139 0.9× 57 0.5× 64 1.4× 46 1.8× 18 265
James J. Perkins United States 12 176 1.1× 212 1.4× 127 1.2× 45 1.0× 50 2.0× 19 483
Terry L. Nechuta United States 8 69 0.4× 223 1.4× 102 1.0× 24 0.5× 49 2.0× 9 327
George Doherty United States 10 235 1.5× 157 1.0× 44 0.4× 22 0.5× 18 0.7× 16 405
Craig Swearingen United States 15 82 0.5× 182 1.2× 25 0.2× 48 1.0× 97 3.9× 21 423
Masaaki Takami Japan 12 62 0.4× 208 1.4× 52 0.5× 182 3.9× 27 1.1× 26 462
Georgette M. Castanedo United States 8 175 1.1× 98 0.6× 15 0.1× 16 0.3× 29 1.2× 11 267
Paola Burreddu Italy 12 151 0.9× 206 1.3× 160 1.5× 23 0.5× 66 2.6× 13 383
Madhu Mahankali United States 14 198 1.2× 364 2.4× 12 0.1× 54 1.1× 70 2.8× 17 574
Kiyoshi Inoguchi Japan 12 207 1.3× 137 0.9× 15 0.1× 56 1.2× 36 1.4× 18 399

Countries citing papers authored by Masaji Hayashi

Since Specialization
Citations

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

Fields of papers citing papers by Masaji Hayashi

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Masaji Hayashi

This figure shows the co-authorship network connecting the top 25 collaborators of Masaji Hayashi. A scholar is included among the top collaborators of Masaji Hayashi 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 Masaji Hayashi. Masaji Hayashi 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.
Ikeda, Masahiko, et al.. (2000). Synthesis and biological evaluations of A-ring isomers of 26,26,26,27,27,27-hexafluoro-1,25-dihydroxyvitamin D3. Bioorganic & Medicinal Chemistry. 8(8). 2157–2166. 9 indexed citations
2.
Ikeda, Masahiko, et al.. (2000). Synthesis and biological evaluations of C-23-modified 26,26,26,27,27,27-F6-vitamin D3 analogues. Bioorganic & Medicinal Chemistry. 8(7). 1809–1817. 9 indexed citations
3.
Yamada, Kazuto, et al.. (1998). The role of P-selectin, sialyl Lewis X and sulfatide in myocardial ischemia and reperfusion injury. European Journal of Pharmacology. 346(2-3). 217–225. 20 indexed citations
4.
Miyauchi, Hiroshi, et al.. (1997). Synthesis and inhibitory effect of a sialyl lewis X-acrylamide homopolymer at preventing cell adhesion. Bioorganic & Medicinal Chemistry Letters. 7(8). 985–988. 15 indexed citations
5.
Miyauchi, Hiroshi, et al.. (1997). Synthesis and inhibitory effects of bivalent sialyl lewis X analogs at preventing cell adhesion. Bioorganic & Medicinal Chemistry Letters. 7(8). 989–992. 12 indexed citations
6.
Tojo, Shinichiro J., Shin‐ichi Yokota, Jody Schultz, et al.. (1996). Reduction of rat myocardial ischemia and reperfusion injury by sialyl Lewis x oligosaccharide and anti-rat P-selectin antibodies. Glycobiology. 6(4). 463–469. 51 indexed citations
7.
Ohnishi, Masako, et al.. (1996). Role of P-selectin in the early stage of the Arthus reaction. Immunopharmacology. 34(2-3). 161–170. 23 indexed citations
8.
Miyauchi, Hiroshi, et al.. (1996). Stereoselective synthesis of lewis-associated trisaccharides as E-selectin inhibitors. Bioorganic & Medicinal Chemistry Letters. 6(17). 2043–2048. 4 indexed citations
9.
Hayashi, Masaji, et al.. (1996). A Convenient and Efficient Synthesis of SLeX Analogs. The Journal of Organic Chemistry. 61(9). 2938–2945. 35 indexed citations
10.
Ramphal, John, Boliang Lou, John J. Gaudino, et al.. (1996). Ligand Interactions with E-Selectin. Identification of a New Binding Site for Recognition of N-Acyl Aromatic Glucosamine Substituents of Sialyl Lewis X. Journal of Medicinal Chemistry. 39(7). 1357–1360. 33 indexed citations
11.
12.
Mukaiyama, Teruaki, et al.. (1988). The Addition Reaction of Acetals to Activated Olefins under Extremely Mild Conditions. Chemistry Letters. 17(7). 1101–1104. 18 indexed citations
13.
Hayashi, Masaji & Teruaki Mukaiyama. (1987). A Conjugate Addition of Allylsilanes to α,β-Unsaturated Ketones Catalyzed by Trityl Perchlorate. Chemistry Letters. 16(2). 289–292. 11 indexed citations
14.
15.
Hayashi, Masaji & Teruaki Mukaiyama. (1987). An Efficient and Convenient Method for the Preparation of α-Methylenated Ketones from Silyl Enol Ethers. Chemistry Letters. 16(7). 1283–1286. 4 indexed citations
16.
Mukaiyama, Teruaki, Masaji Hayashi, & Junji Ichikawa. (1986). A Stereocontrolled Synthesis of 2,3,5-Trisubstituted Tetrahydrofurans from Aldolized γ-Diketones via Cyclization-reduction Process. Chemistry Letters. 15(7). 1157–1160. 2 indexed citations
17.
Mukaiyama, Teruaki, Junji Ichikawa, Makoto Toba, & Masaji Hayashi. (1985). A REGIO- AND STEREOSELECTIVE SYNTHESIS OF ALDOLIZED γ-DIKETONES VIA TIN(IV) BISENOLATES BY THE USE OF BIS(2-PYRIDINETHIOLATO)TIN(II). Chemistry Letters. 14(10). 1539–1542. 6 indexed citations
18.
Terashima, Shiro, Masaji Hayashi, & Kenji Koga. (1980). A highly efficient asymmetric synthesis of optically active α,β-epoxyaldehydes from α,β-unsaturated acids. Tetrahedron Letters. 21(28). 2733–2736. 11 indexed citations
19.
20.

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 Gensuke Takayama Breakdown of academic impact, for papers by James J. Perkins Breakdown of academic impact, for papers by Terry L. Nechuta Breakdown of academic impact, for papers by George Doherty Breakdown of academic impact, for papers by Craig Swearingen Breakdown of academic impact, for papers by Masaaki Takami Breakdown of academic impact, for papers by Georgette M. Castanedo Breakdown of academic impact, for papers by Paola Burreddu Breakdown of academic impact, for papers by Madhu Mahankali Breakdown of academic impact, for papers by Kiyoshi Inoguchi
Rankless by CCL
2026