Sumi Ishihara

1.3k total citations · 1 hit paper
8 papers, 1.1k citations indexed

About

Sumi Ishihara is a scholar working on Pharmaceutical Science, Organic Chemistry and Spectroscopy. According to data from OpenAlex, Sumi Ishihara has authored 8 papers receiving a total of 1.1k indexed citations (citations by other indexed papers that have themselves been cited), including 7 papers in Pharmaceutical Science, 3 papers in Organic Chemistry and 3 papers in Spectroscopy. Recurrent topics in Sumi Ishihara's work include Fluorine in Organic Chemistry (7 papers), Sulfur-Based Synthesis Techniques (3 papers) and Inorganic Fluorides and Related Compounds (3 papers). Sumi Ishihara is often cited by papers focused on Fluorine in Organic Chemistry (7 papers), Sulfur-Based Synthesis Techniques (3 papers) and Inorganic Fluorides and Related Compounds (3 papers). Sumi Ishihara collaborates with scholars based in Japan and United States. Sumi Ishihara's co-authors include Teruo Umemoto, Kenji Adachi, Ginjiro Tomizawa and Yutaka Ohira and has published in prestigious journals such as Journal of the American Chemical Society, The Journal of Organic Chemistry and Tetrahedron Letters.

In The Last Decade

Sumi Ishihara

8 papers receiving 1.1k citations

Hit Papers

Power-variable electrophilic trifluoromethylating agents.... 1993 2026 2004 2015 1993 100 200 300 400
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.

  1. Power-variable electrophilic trifluoromethylating agents. S-, Se-, and Te-(trifluoromethyl)dibenzothio-, -seleno-, and -tellurophenium salt system
    1993 456 citations Teruo Umemoto, Sumi Ishihara Journal of the American Chemical Society profile →

Peers

Sumi Ishihara
E. LAURENT France
Kohei Matsuzaki Japan
Ginjiro Tomizawa Japan
M. A. MCCLINTON United Kingdom
Iris Kieltsch Switzerland
Damian E. Yerien Argentina
Ewa Pietrasiak Switzerland
Todd D. Senecal United States
Cong Xu China
Zhao‐Jing Liu China
E. LAURENT France
Sumi Ishihara
Citations per year, relative to Sumi Ishihara Sumi Ishihara (= 1×) peers E. LAURENT

Countries citing papers authored by Sumi Ishihara

Since Specialization
Citations

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

Fields of papers citing papers by Sumi Ishihara

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Sumi Ishihara

This figure shows the co-authorship network connecting the top 25 collaborators of Sumi Ishihara. A scholar is included among the top collaborators of Sumi Ishihara 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 Sumi Ishihara. Sumi Ishihara is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

8 of 8 papers shown
1.
Umemoto, Teruo, Kenji Adachi, & Sumi Ishihara. (2007). CF3 Oxonium Salts, O-(Trifluoromethyl)dibenzofuranium Salts:  In Situ Synthesis, Properties, and Application as a Real CF3+ Species Reagent. The Journal of Organic Chemistry. 72(18). 6905–6917. 211 indexed citations
2.
Adachi, Kenji, et al.. (2003). Electrophilic fluorination with N,N′-difluoro-2,2′-bipyridinium salt and elemental fluorine. Journal of Fluorine Chemistry. 120(2). 173–183. 12 indexed citations
3.
Umemoto, Teruo & Sumi Ishihara. (1998). Effective methods for preparing S-(trifluoromethyl)dibenzothiophenium salts. Journal of Fluorine Chemistry. 92(2). 181–187. 34 indexed citations
4.
Umemoto, Teruo, Sumi Ishihara, & Kenji Adachi. (1995). Useful electrophilic trifluoromethylating agents; S-, Se- and Te-(trifluoromethyl)dibenzo-thio-, -seleno- and -telluro-phenium-3-sulfonates. Journal of Fluorine Chemistry. 74(1). 77–82. 47 indexed citations
5.
Umemoto, Teruo & Sumi Ishihara. (1993). Power-variable electrophilic trifluoromethylating agents. S-, Se-, and Te-(trifluoromethyl)dibenzothio-, -seleno-, and -tellurophenium salt system. Journal of the American Chemical Society. 115(6). 2156–2164. 456 indexed citations breakdown →
6.
Umemoto, Teruo, Sumi Ishihara, & Kenji Adachi. (1991). Power-variable trifluoromethylating agents, (trifluoromethyl)dibenzothio- and -selenophenium salt system. Journal of Fluorine Chemistry. 54(1-3). 202–202. 129 indexed citations
7.
Umemoto, Teruo & Sumi Ishihara. (1990). Power-variable trifluoromethylating agents, (trifluoromethyl)dibenzothio- and -selenophenium salt system. Tetrahedron Letters. 31(25). 3579–3582. 213 indexed citations
8.
Ishihara, Sumi. (1966). Studies on the Potency Test of Pertussis Vaccine by Intracerebral Method with special reference to the Host Factor. Nippon Saikingaku Zasshi. 21(2). 81–87. 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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