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Chemistry
Taiwan
2026

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Chemistry 135 259 234 1 1 611 56220

Tamio Hayashi publications per year

The chart shows the history of publications by Tamio Hayashi between 1971 and 2024, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Tamio Hayashi published across 54 years, from 1971 to 2024, averaging 11.4 papers a year. Output peaked at 37 publications in 2010. 4 of the 615 publications appeared in the last two years.

No. of publications
10 20 30
Bar chart. Horizontal axis: year, 1971 to 2024. Vertical axis: number of publications, 0 to 37. Peak 37 publications in 2010. 1971: 3 publications 1972: 1 publication 1973: 1 publication 1974: 4 publications 1975: 2 publications 1976: 12 publications 1977: 5 publications 1978: 4 publications 1979: 5 publications 1980: 10 publications 1981: 5 publications 1982: 10 publications 1983: 7 publications 1984: 6 publications 1985: 4 publications 1986: 8 publications 1987: 9 publications 1988: 15 publications 1989: 13 publications 1990: 9 publications 1991: 11 publications 1992: 11 publications 1993: 15 publications 1994: 19 publications 1995: 6 publications 1996: 9 publications 1997: 9 publications 1998: 12 publications 1999: 14 publications 2000: 15 publications 2001: 18 publications 2002: 18 publications 2003: 20 publications 2004: 18 publications 2005: 32 publications 2006: 30 publications 2007: 25 publications 2008: 28 publications 2009: 22 publications 2010: 37 publications 2011: 35 publications 2012: 20 publications 2013: 13 publications 2014: 6 publications 2015: 8 publications 2016: 6 publications 2017: 3 publications 2018: 7 publications 2019: 2 publications 2020: 4 publications 2021: 2 publications 2022: 3 publications 2023: 1 publication 2024: 3 publications
1971 2024

615 publications in total across all disciplines

View publications per year as a table
Tamio Hayashi: publications per year, 1971 to 2024
Year Publications
1971 3
1972 1
1973 1
1974 4
1975 2
1976 12
1977 5
1978 4
1979 5
1980 10
1981 5
1982 10
1983 7
1984 6
1985 4
1986 8
1987 9
1988 15
1989 13
1990 9
1991 11
1992 11
1993 15
1994 19
1995 6
1996 9
1997 9
1998 12
1999 14
2000 15
2001 18
2002 18
2003 20
2004 18
2005 32
2006 30
2007 25
2008 28
2009 22
2010 37
2011 35
2012 20
2013 13
2014 6
2015 8
2016 6
2017 3
2018 7
2019 2
2020 4
2021 2
2022 3
2023 1
2024 3
Total 615
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Tamio Hayashi publication distribution in Chemistry in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Chemistry in 2026. The highlighted bar marks where Tamio Hayashi sits on this spectrum.

No. of scientists
250 500 750 1,000 1,250
Bar chart with 63 bars. Horizontal axis: publications, 61–80 to 1,295+. Vertical axis: number of scientists, 0 to 1,350. Most scientists, 1,350, have 161–180 publications. The last bar groups every scientist with 1,295 publications or more. The highlighted bar, 601–620 publications, is where this scientist sits. 61–80 publications: 66 scientists 81–100 publications: 302 scientists 101–120 publications: 623 scientists 121–140 publications: 918 scientists 141–160 publications: 1,218 scientists 161–180 publications: 1,350 scientists 181–200 publications: 1,344 scientists 201–220 publications: 1,281 scientists 221–240 publications: 1,216 scientists 241–260 publications: 1,100 scientists 261–280 publications: 979 scientists 281–300 publications: 939 scientists 301–320 publications: 764 scientists 321–340 publications: 643 scientists 341–360 publications: 628 scientists 361–380 publications: 522 scientists 381–400 publications: 459 scientists 401–420 publications: 397 scientists 421–440 publications: 327 scientists 441–460 publications: 270 scientists 461–480 publications: 265 scientists 481–500 publications: 252 scientists 501–520 publications: 201 scientists 521–540 publications: 185 scientists 541–560 publications: 148 scientists 561–580 publications: 148 scientists 581–600 publications: 132 scientists 601–620 publications: 114 scientists 621–640 publications: 104 scientists 641–660 publications: 91 scientists 661–680 publications: 92 scientists 681–700 publications: 73 scientists 701–720 publications: 57 scientists 721–740 publications: 54 scientists 741–760 publications: 67 scientists 761–780 publications: 45 scientists 781–800 publications: 46 scientists 801–820 publications: 39 scientists 821–840 publications: 32 scientists 841–860 publications: 36 scientists 861–880 publications: 29 scientists 881–900 publications: 26 scientists 901–920 publications: 24 scientists 921–940 publications: 14 scientists 941–960 publications: 23 scientists 961–980 publications: 28 scientists 981–1,000 publications: 15 scientists 1,001–1,020 publications: 29 scientists 1,021–1,040 publications: 12 scientists 1,041–1,060 publications: 19 scientists 1,061–1,080 publications: 12 scientists 1,081–1,100 publications: 6 scientists 1,101–1,120 publications: 8 scientists 1,121–1,140 publications: 12 scientists 1,141–1,160 publications: 5 scientists 1,161–1,180 publications: 6 scientists 1,181–1,200 publications: 14 scientists 1,201–1,220 publications: 7 scientists 1,221–1,240 publications: 2 scientists 1,241–1,260 publications: 6 scientists 1,261–1,280 publications: 4 scientists 1,281–1,294 publications: 6 scientists 1,295+ publications: 100 scientists
61–80 publications 1,295+

This scientist: 611 publications — 93rd percentile

93% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,295 publications or more.

View publications distribution as a table
Number of Chemistry scientists by publication count, Research.com 2026 ranking edition. Based on 17,934 ranked scientists.
Publications Scientists This scientist
61–80 66
81–100 302
101–120 623
121–140 918
141–160 1,218
161–180 1,350
181–200 1,344
201–220 1,281
221–240 1,216
241–260 1,100
261–280 979
281–300 939
301–320 764
321–340 643
341–360 628
361–380 522
381–400 459
401–420 397
421–440 327
441–460 270
461–480 265
481–500 252
501–520 201
521–540 185
541–560 148
561–580 148
581–600 132
601–620 114 611
621–640 104
641–660 91
661–680 92
681–700 73
701–720 57
721–740 54
741–760 67
761–780 45
781–800 46
801–820 39
821–840 32
841–860 36
861–880 29
881–900 26
901–920 24
921–940 14
941–960 23
961–980 28
981–1,000 15
1,001–1,020 29
1,021–1,040 12
1,041–1,060 19
1,061–1,080 12
1,081–1,100 6
1,101–1,120 8
1,121–1,140 12
1,141–1,160 5
1,161–1,180 6
1,181–1,200 14
1,201–1,220 7
1,221–1,240 2
1,241–1,260 6
1,261–1,280 4
1,281–1,294 6
1,295+ 100
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Tamio Hayashi D-index placement in Chemistry in 2026

The chart shows the D-index (discipline H-index) distribution of Chemistry scientists ranked by Research.com in 2026. The highlighted bar marks where Tamio Hayashi sits on this spectrum.

No. of scientists
250 500 750 1,000
Bar chart with 61 bars. Horizontal axis: D-Index, 40–41 to 159+. Vertical axis: number of scientists, 0 to 1,051. Most scientists, 1,051, have 56–57 D-Index. The last bar groups every scientist with 159 D-Index or more. The highlighted bar, 134–135 D-Index, is where this scientist sits. 40–41 D-Index: 289 scientists 42–43 D-Index: 612 scientists 44–45 D-Index: 808 scientists 46–47 D-Index: 776 scientists 48–49 D-Index: 835 scientists 50–51 D-Index: 861 scientists 52–53 D-Index: 872 scientists 54–55 D-Index: 933 scientists 56–57 D-Index: 1,051 scientists 58–59 D-Index: 930 scientists 60–61 D-Index: 882 scientists 62–63 D-Index: 834 scientists 64–65 D-Index: 731 scientists 66–67 D-Index: 775 scientists 68–69 D-Index: 683 scientists 70–71 D-Index: 646 scientists 72–73 D-Index: 561 scientists 74–75 D-Index: 501 scientists 76–77 D-Index: 437 scientists 78–79 D-Index: 388 scientists 80–81 D-Index: 354 scientists 82–83 D-Index: 292 scientists 84–85 D-Index: 275 scientists 86–87 D-Index: 254 scientists 88–89 D-Index: 235 scientists 90–91 D-Index: 185 scientists 92–93 D-Index: 192 scientists 94–95 D-Index: 155 scientists 96–97 D-Index: 163 scientists 98–99 D-Index: 125 scientists 100–101 D-Index: 105 scientists 102–103 D-Index: 105 scientists 104–105 D-Index: 112 scientists 106–107 D-Index: 88 scientists 108–109 D-Index: 68 scientists 110–111 D-Index: 69 scientists 112–113 D-Index: 65 scientists 114–115 D-Index: 79 scientists 116–117 D-Index: 61 scientists 118–119 D-Index: 44 scientists 120–121 D-Index: 37 scientists 122–123 D-Index: 40 scientists 124–125 D-Index: 33 scientists 126–127 D-Index: 26 scientists 128–129 D-Index: 34 scientists 130–131 D-Index: 35 scientists 132–133 D-Index: 25 scientists 134–135 D-Index: 27 scientists 136–137 D-Index: 17 scientists 138–139 D-Index: 16 scientists 140–141 D-Index: 20 scientists 142–143 D-Index: 20 scientists 144–145 D-Index: 15 scientists 146–147 D-Index: 9 scientists 148–149 D-Index: 9 scientists 150–151 D-Index: 16 scientists 152–153 D-Index: 11 scientists 154–155 D-Index: 9 scientists 156–157 D-Index: 3 scientists 158 D-Index: 3 scientists 159+ D-Index: 98 scientists
40–41 D-Index 159+

This scientist: 135 D-Index — 99th percentile

99% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 159 D-Index or more.

View D-Index distribution as a table
Number of Chemistry scientists by D-index, Research.com 2026 ranking edition. Based on 17,934 ranked scientists.
D-Index Scientists This scientist
40–41 289
42–43 612
44–45 808
46–47 776
48–49 835
50–51 861
52–53 872
54–55 933
56–57 1,051
58–59 930
60–61 882
62–63 834
64–65 731
66–67 775
68–69 683
70–71 646
72–73 561
74–75 501
76–77 437
78–79 388
80–81 354
82–83 292
84–85 275
86–87 254
88–89 235
90–91 185
92–93 192
94–95 155
96–97 163
98–99 125
100–101 105
102–103 105
104–105 112
106–107 88
108–109 68
110–111 69
112–113 65
114–115 79
116–117 61
118–119 44
120–121 37
122–123 40
124–125 33
126–127 26
128–129 34
130–131 35
132–133 25
134–135 27 135
136–137 17
138–139 16
140–141 20
142–143 20
144–145 15
146–147 9
148–149 9
150–151 16
152–153 11
154–155 9
156–157 3
158 3
159+ 98
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Research.com Recognitions

  • 2026 - Research.com Chemistry in Taiwan Leader Award
  • 2025 - Research.com Chemistry in Taiwan Leader Award
  • 2007 - Ryoji Noyori Prize, Society of Synthetic Organic Chemistry

Overview

Tamio Hayashi is affiliated with National Tsing Hua University in Taiwan. Their research primarily spans the field of Chemistry, with a focus on Organic Chemistry, Inorganic Chemistry, Materials Chemistry, Pharmaceutical Science, and Spectroscopy.

The scientist's work covers several main topics, including:

  • Asymmetric Hydrogenation and Catalysis
  • Asymmetric Synthesis and Catalysis
  • Catalytic C-H Functionalization Methods
  • Cyclopropane Reaction Mechanisms
  • Catalytic Cross-Coupling Reactions
  • Fluorine in Organic Chemistry
  • Catalytic Alkyne Reactions

Tamio Hayashi has published numerous papers, with notable recent publications such as:

  • "Chiral Diene Ligands in Asymmetric Catalysis," 2022, Chemical Reviews
  • "Asymmetric Synthesis of Fluorinated Allenes by Rhodium-Catalyzed Enantioselective Alkylation/Defluorination of Propargyl Difluorides with Alkylzincs," 2021, Angewandte Chemie International Edition
  • "Secondary Phosphine Sulfide-Enabled Iridium-Catalyzed Asymmetric Allylic Substitution," 2022, Angewandte Chemie International Edition
  • "Highly Enantioselective Synthesis of Monofluoroalkenes by Rhodium-Catalyzed Asymmetric Arylation/Defluorination of Allyl Difluorides," 2020, Organic Letters
  • "Rhodium-Catalyzed Diverse Arylation of 2,5-Dihydrofuran: Controllable Divergent Synthesis via Four Pathways," 2020, ACS Catalysis

The scientist frequently publishes in specific venues, including:

  • Angewandte Chemie International Edition
  • ACS Catalysis
  • Angewandte Chemie
  • The Cambridge Structural Database
  • Organic Letters

Tamio Hayashi's work often includes collaborations with several coauthors, notably:

  • Jialin Ming
  • Jia Sheng Ng
  • Yinhua Huang
  • Zeng-Hua Wu
  • Huaiyu Wang

In 2007, the scientist was awarded the Ryoji Noyori Prize by the Society of Synthetic Organic Chemistry.

Best Publications

  • Rhodium-catalyzed asymmetric 1,4-addition and its related asymmetric reactions

    Tamio Hayashi;Kaori Yamasaki

  • Catalytic asymmetric aldol reaction: reaction of aldehydes with isocyanoacetate catalyzed by a chiral ferrocenylphosphine-gold(I) complex

    Yoshihiko. Ito;Masaya. Sawamura;Tamio. Hayashi

  • Dichloro[1,1'-bis(diphenylphosphino)ferrocene]palladium(II): an effective catalyst for cross-coupling of secondary and primary alkyl Grignard and alkylzinc reagents with organic halides

    Tamio Hayashi;Mitsuo Konishi;Yuji Kobori;Makoto Kumada

  • Rhodium-Catalyzed Asymmetric 1,4-Addition of Aryl- and Alkenylboronic Acids to Enones

    Yoshiaki Takaya;and Masamichi Ogasawara;Tamio Hayashi;Masaaki Sakai and

  • Catalytic Cycle of Rhodium-Catalyzed Asymmetric 1,4-Addition of Organoboronic Acids. Arylrhodium, Oxa-π-allylrhodium, and Hydroxorhodium Intermediates

    Tamio Hayashi;Makoto Takahashi;Yoshiaki Takaya;Masamichi Ogasawara

  • Chiral monodentate phosphine ligand MOP for transition-metal-catalyzed asymmetric reactions.

    Tamio Hayashi

  • Asymmetric Synthesis Catalyzed by Chiral Ferrocenylphosphine–Transition Metal Complexes. I. Preparation of Chiral Ferrocenylphosphines

    Tamio Hayashi;Takaya Mise;Motoo Fukushima;Masahiro Kagotani

  • A chiral chelating diene as a new type of chiral ligand for transition metal catalysts: its preparation and use for the rhodium-catalyzed asymmetric 1,4-addition.

    Tamio Hayashi;Kazuhito Ueyama;Norihito Tokunaga;Kazuhiro Yoshida

  • C2-Symmetric Bicyclo[2.2.2]octadienes as Chiral Ligands: Their High Performance in Rhodium-Catalyzed Asymmetric Arylation of N-Tosylarylimines

    Norihito Tokunaga;Yusuke Otomaru;Kazuhiro Okamoto;Kazuhito Ueyama

  • tert-Butoxide-mediated arylation of benzene with aryl halides in the presence of a catalytic 1,10-phenanthroline derivative.

    Eiji Shirakawa;Ken-ichi Itoh;Tomohiro Higashino;Tamio Hayashi

  • Asymmetric synthesis catalyzed by chiral ferrocenylphosphine - transition-metal complexes. 8. Palladium-catalyzed asymmetric allylic amination

    Tamio Hayashi;Akihiro Yamamoto;Yoshihiko Ito;Eriko Nishioka

  • Catalytic asymmetric arylation of 2,3-dihydrofuran with aryl triflates

    Fumiyuki Ozawa;Akihiko Kubo;Tamio Hayashi

  • Catalytic asymmetric synthesis of optically active 2-alkanols via hydrosilylation of 1-alkenes with a chiral monophosphine-palladium catalyst

    Yasuhiro Uozumi;Tamio Hayashi

  • Rhodium-Catalyzed Hydroarylation of Alkynes with Arylboronic Acids: 1,4-Shift of Rhodium from 2-Aryl-1-alkenylrhodium to 2-Alkenylarylrhodium Intermediate

    Tamio Hayashi;Kazuya Inoue;Nobukazu Taniguchi;Masamichi Ogasawara

  • Iron-catalyzed Grignard cross-coupling with alkyl halides possessing beta-hydrogens.

    Takashi Nagano;Tamio Hayashi

  • Asymmetric synthesis catalyzed by chiral ferrocenylphosphine-transition-metal complexes. 6. Practical asymmetric synthesis of 1,1'-binaphthyls via asymmetric cross-coupling with a chiral [(alkoxyalkyl)ferrocenyl]monophosphine/nickel catalyst

    Tamio. Hayashi;Keiichi. Hayashizaki;Takao. Kiyoi;Yoshihiko. Ito

  • Synthesis of optically active 2-(diarylphosphino)-1,1'-binaphthyls, efficient chiral monodentate phosphine ligands

    Yasuhiro Uozumi;Asako Tanahashi;Sang Yong Lee;Tamio Hayashi

  • Rhodium-Catalyzed Asymmetric Addition of Aryl- and Alkenylboronic Acids to Isatins

    Ryo Shintani;Mitsunori Inoue;Tamio Hayashi

  • Palladium-catalyzed asymmetric arylation of 2,3-dihydrofuran with phenyl triflate. A novel asymmetric catalysis involving a kinetic resolution process

    Fumiyuki Ozawa;Akihiko Kubo;Yonetatsu Matsumoto;Tamio Hayashi

  • Modification of optically active ferrocenylphosphine ligands for palladium-catalyzed asymmetric allylic alkylation

    Tamio Hayashi;Akihiro Yamamoto;Toshiya Hagihara;Yoshihiko Ito

  • Synthesis of All-Carbon Quaternary Stereocenters

    R. Shintani;Y. Tsutsumi;M. Nagaosa;T. Nishimura

Frequent Co-Authors

Ryo Shintani
Ryo Shintani Osaka University
Takahiro Nishimura
Takahiro Nishimura Osaka Metropolitan University
Yasuhiro Uozumi
Yasuhiro Uozumi The Graduate University for Advanced Studies, SOKENDAI
Makoto Kumada
Makoto Kumada Kyoto University
Masamichi Ogasawara
Masamichi Ogasawara University of Tokushima
Eiji Shirakawa
Eiji Shirakawa Kyoto University
Yoshihiko Ito
Yoshihiko Ito Kyoto University
Masaya Sawamura
Masaya Sawamura Hokkaido University
Fumiyuki Ozawa
Fumiyuki Ozawa Kyoto University
Yixin Lu
Yixin Lu National University of Singapore

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