Ryuichiro Hara

1.9k total citations
47 papers, 1.6k citations indexed

About

Ryuichiro Hara is a scholar working on Organic Chemistry, Inorganic Chemistry and Molecular Biology. According to data from OpenAlex, Ryuichiro Hara has authored 47 papers receiving a total of 1.6k indexed citations (citations by other indexed papers that have themselves been cited), including 43 papers in Organic Chemistry, 13 papers in Inorganic Chemistry and 7 papers in Molecular Biology. Recurrent topics in Ryuichiro Hara's work include Synthetic Organic Chemistry Methods (20 papers), Organometallic Complex Synthesis and Catalysis (14 papers) and Synthesis of β-Lactam Compounds (10 papers). Ryuichiro Hara is often cited by papers focused on Synthetic Organic Chemistry Methods (20 papers), Organometallic Complex Synthesis and Catalysis (14 papers) and Synthesis of β-Lactam Compounds (10 papers). Ryuichiro Hara collaborates with scholars based in Japan, United States and United Kingdom. Ryuichiro Hara's co-authors include Tamotsu Takahashi, Martin Kotora, Zhenfeng Xi, Yasushi Nishihara, Motohiro Kageyama, Wen‐Hua Sun, Shouquan Huo, Ei‐ichi Negishi, Qiaoxia Guo and Chanjuan Xi and has published in prestigious journals such as Journal of the American Chemical Society, Chemical Communications and The Journal of Organic Chemistry.

In The Last Decade

Ryuichiro Hara

46 papers receiving 1.5k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Ryuichiro Hara Japan 21 1.3k 333 206 104 76 47 1.6k
Corinne Aubert France 13 440 0.3× 162 0.5× 317 1.5× 206 2.0× 119 1.6× 22 959
Nobuhiro Kanomata Japan 16 630 0.5× 94 0.3× 178 0.9× 41 0.4× 78 1.0× 44 819
James J. Fleming United States 12 693 0.5× 93 0.3× 196 1.0× 35 0.3× 111 1.5× 18 844
James P. Wepsiec United States 11 691 0.5× 88 0.3× 339 1.6× 206 2.0× 111 1.5× 18 972
Yasushi Sugiura Japan 9 536 0.4× 106 0.3× 165 0.8× 11 0.1× 65 0.9× 16 728
Yangzhong Qin United States 17 606 0.5× 70 0.2× 231 1.1× 55 0.5× 197 2.6× 28 1.1k
Kwang‐Hyun Ahn South Korea 19 481 0.4× 124 0.4× 67 0.3× 160 1.5× 437 5.8× 51 877
Richard B. C. Jagt Netherlands 13 713 0.5× 393 1.2× 214 1.0× 23 0.2× 48 0.6× 18 893
Helen M. Hoyt United States 10 683 0.5× 282 0.8× 248 1.2× 20 0.2× 51 0.7× 17 842
Sylwia Kacprzak Germany 18 244 0.2× 254 0.8× 337 1.6× 123 1.2× 137 1.8× 42 966

Countries citing papers authored by Ryuichiro Hara

Since Specialization
Citations

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

Fields of papers citing papers by Ryuichiro Hara

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Ryuichiro Hara

This figure shows the co-authorship network connecting the top 25 collaborators of Ryuichiro Hara. A scholar is included among the top collaborators of Ryuichiro Hara 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 Ryuichiro Hara. Ryuichiro Hara 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.
Guo, Qiaoxia, et al.. (2002). Group 5 and group 6 metal halides as very efficient catalysts for acylative cleavage of ethers. Tetrahedron. 58(36). 7327–7334. 73 indexed citations
2.
Guo, Qiaoxia, et al.. (2001). Catalytic C–O bond cleavage of ethers using group 5 or 6 metal halide/acid chloride systems. Chemical Communications. 1018–1019. 34 indexed citations
3.
Hara, Ryuichiro, Qiaoxia Guo, & Tamotsu Takahashi. (2000). Reduction of Molybdenum(V) Chloride with Various Reducing Metals: Reactivity Correlations with the Descendant Lewis Acids. Chemistry Letters. 29(2). 140–141. 7 indexed citations
4.
Kasai, K., Yuanhong Liu, Ryuichiro Hara, & Tamotsu Takahashi. (1998). Zirconocene-catalysed cyclobutene formation by reaction of alkynyl halides with EtMgBr. Chemical Communications. 1989–1990. 18 indexed citations
5.
Ura, Yasuyuki, Ryuichiro Hara, & Tamotsu Takahashi. (1998). Reaction of a Zirconocene-Ethylene Complex with Group 14 Metal Chlorides or Alkoxides. Chemistry Letters. 27(3). 195–196. 7 indexed citations
6.
7.
Hara, Ryuichiro, Yuanhong Liu, Wen‐Hua Sun, & Tamotsu Takahashi. (1997). Highly substituted enyne formation by coupling reaction of alkenylzirconium compounds with alkynyl halides. Tetrahedron Letters. 38(23). 4103–4106. 35 indexed citations
8.
Hara, Ryuichiro, et al.. (1996). Cycloaddition Reactions of a 3-(1,3-Butadienyl)cephalosporin and Antibacterial Activity of New Cephem Derivatives.. The Journal of Antibiotics. 49(11). 1182–1185. 2 indexed citations
9.
Hara, Ryuichiro, et al.. (1996). Synthesis and Biological Activity of New Cephem Compounds with a 3-(2-Butenyl)- and a 3-(1,3-Butadienyl)groupat Their 3-Position.. The Journal of Antibiotics. 49(11). 1179–1181. 2 indexed citations
10.
Muller, C. J., et al.. (1996). Atomic probes: a search for conduction through a single molecule. Nanotechnology. 7(4). 409–411. 40 indexed citations
11.
Schumm, Jeffry S., Darren L. Pearson, LeRoy Jones, Ryuichiro Hara, & James M. Tour. (1996). Potential molecular wires and molecular alligator clips. Nanotechnology. 7(4). 430–433. 9 indexed citations
12.
Xi, Zhenfeng, Ryuichiro Hara, & Tamotsu Takahashi. (1995). Highly Selective and Practical Alkyne-Alkyne Cross-Coupling Using Cp2ZrBu2 and Ethylene. The Journal of Organic Chemistry. 60(14). 4444–4448. 104 indexed citations
13.
Hara, Ryuichiro, et al.. (1994). Studies on .BETA.-lactam antibiotics. IV. An improved synthesis of 3-(isothiazolylythiomethyl)cephalosporins and its application to new derivatives.. The Journal of Antibiotics. 47(4). 477–486. 5 indexed citations
14.
Hara, Ryuichiro, et al.. (1994). A facile synthesis of 3-(1,3-butadienyl)cephalosporins. Tetrahedron Letters. 35(26). 4577–4578. 5 indexed citations
15.
Takahashi, Tamotsu, Koichiro Aoyagi, Ryuichiro Hara, & Noriyuki Suzuki. (1993). Highly chemoselective reactions of zirconacyclopentenes for selective functionalization. Journal of the Chemical Society Chemical Communications. 1042–1042. 22 indexed citations
16.
Takahashi, Tamotsu, Koichiro Aoyagi, Ryuichiro Hara, & Noriyuki Suzuki. (1992). Monohalogenation of Zirconacyclopentane Complexes via Alkylalkoxyzirconocene. Chemistry Letters. 21(9). 1693–1696. 16 indexed citations
17.
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19.
Hara, Ryuichiro & Teruaki Mukaiyama. (1989). [1,2-Benzenediolato(2−)-O-O′]oxotitanium. A Chemoselective and Efficient Catalyst for Aldol-type Reaction of Ketene Silyl Acetals with Aldehydes. Chemistry Letters. 18(11). 1909–1912. 10 indexed citations
20.
Shibanuma, Tadao, et al.. (1987). Studies on .BETA.-lactam antibiotics. I Synthesis and in vitro anti-pseudomonal activity of 3-isothiazole-cephalosporin derivatives.. The Journal of Antibiotics. 40(2). 173–181. 3 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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