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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Chemistry 42 17498 15826 1384 1253 234 6759

Takeshi Nakai publications per year

The chart shows the history of publications by Takeshi Nakai between 1964 and 2017, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Takeshi Nakai published across 54 years, from 1964 to 2017, averaging 4.4 papers a year. Output peaked at 15 publications in 1991. 1 of the 240 publications appeared in the last two years.

No. of publications
5 10 15
Bar chart. Horizontal axis: year, 1964 to 2017. Vertical axis: number of publications, 0 to 15. Peak 15 publications in 1991. 1964: 1 publication 1965: 2 publications 1966: 2 publications 1967: 2 publications 1968: 1 publication 1969: 1 publication 1970: 14 publications 1971: 8 publications 1972: 5 publications 1973: 2 publications 1974: 8 publications 1975: 3 publications 1976: 4 publications 1977: 5 publications 1978: 4 publications 1979: 6 publications 1980: 3 publications 1981: 5 publications 1982: 3 publications 1983: 4 publications 1984: 8 publications 1985: 9 publications 1986: 7 publications 1987: 4 publications 1988: 4 publications 1989: 5 publications 1990: 11 publications 1991: 15 publications 1992: 5 publications 1993: 6 publications 1994: 5 publications 1995: 10 publications 1996: 10 publications 1997: 6 publications 1998: 4 publications 1999: 12 publications 2000: 13 publications 2001: 5 publications 2002: 2 publications 2003: 4 publications 2004: 4 publications 2005: 2 publications 2006: 3 publications 2007: 0 publications 2008: 0 publications 2009: 0 publications 2010: 1 publication 2011: 0 publications 2012: 0 publications 2013: 0 publications 2014: 0 publications 2015: 1 publication 2016: 0 publications 2017: 1 publication
1964 2017

240 publications in total across all disciplines

View publications per year as a table
Takeshi Nakai: publications per year, 1964 to 2017
Year Publications
1964 1
1965 2
1966 2
1967 2
1968 1
1969 1
1970 14
1971 8
1972 5
1973 2
1974 8
1975 3
1976 4
1977 5
1978 4
1979 6
1980 3
1981 5
1982 3
1983 4
1984 8
1985 9
1986 7
1987 4
1988 4
1989 5
1990 11
1991 15
1992 5
1993 6
1994 5
1995 10
1996 10
1997 6
1998 4
1999 12
2000 13
2001 5
2002 2
2003 4
2004 4
2005 2
2006 3
2007 0
2008 0
2009 0
2010 1
2011 0
2012 0
2013 0
2014 0
2015 1
2016 0
2017 1
Total 240
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Takeshi Nakai 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 Takeshi Nakai 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, 221–240 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: 234 publications — 44th percentile

44% 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 1,216 234
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
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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Takeshi Nakai 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 Takeshi Nakai 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, 42–43 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: 42 D-Index — 3rd percentile

3% 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 42
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
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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Overview

Takeshi Nakai is affiliated with the Tokyo Institute of Technology in Japan. Their academic profile reflects a research career with contributions to scientific studies while affiliated with this institution.

There are no specific papers listed for Takeshi Nakai, so detailed information about their published research output is not available. Likewise, details about frequent co-authors, publication venues, book publications, and awards have not been provided.

No specific fields or subfields of study have been recorded for Takeshi Nakai. Similarly, no main topics of research or thematic areas connected to their work have been noted.

Given the absence of detailed data on publications, topics, and collaborations, the overview is limited to the institutional affiliation of this scientist at the Tokyo Institute of Technology.

Best Publications

  • [2,3]-Wittig sigmatropic rearrangements in organic synthesis

    Takeshi Nakai;Koichi Mikami

  • Catalytic asymmetric glyoxylate-ene reaction: a practical access to .alpha.-hydroxy esters in high enantiomeric purities

    Koichi Mikami;Masahiro Terada;Takeshi Nakai

  • Asymmetric glyoxylate-ene reaction catalyzed by chiral titanium complexes: a practical access to α-hydroxy esters in high enantiomeric purities

    Koichi Mikami;Masahiro Terada;Takeshi Nakai

  • Asymmetric Catalytic Alkylation of Aldehydes with Diethylzinc Using a Chiral Binaphthol-Titanium Complex

    Maki Mori;Takeshi Nakai

  • Extractions of Y@C60, Ba@C60, La@C60, Ce@C60, Pr@C60, Nd@C60, and Gd@C60 with Aniline

    Yoshihiro Kubozono;Hironobu Maeda;Yasuhiro Takabayashi;Koji Hiraoka

  • CONVENIENT PROCEDURES FOR CONVERSION OF CARBONYL COMPOUNDS TO GEM-DIFLUOROOLEFINS AND THEIR SELECTIVE REDUCTIONS TO MONOFLUOROOLEFINS

    S. Hayashi;T. Nakai;N. Ishikawa;D. J. Burton

  • CONVENIENT PROCEDURES FOR CONVERSION OF CARBONYL COMPOUNDS TO gem-DIFLUOROOLEFINS AND THEIR SELECTIVE REDUCTIONS TO MONOFLUOROOLEFINS

    Sei-ichi Hayashi;Takeshi Nakai;Nobuo Ishikawa;Donald J. Burton

  • Enantio- and diastereoselective catalysis of addition reaction of allylic silanes and stannanes to glyoxylates by binaphthol-derived titanium complex

    Seiichi Aoki;Koichi Mikami;Masahiro Terada;Takeshi Nakai

  • Asymmetric catalysis for carbonyl-ene reaction

    Koichi Mikami;Masahiro Terada;Satoshi Narisawa;Takeshi Nakai

  • Asymmetric Catalytic Cyanosilylation of Aldehydes Using a Chiral Binaphthol-Titanium Complex

    Maki Mori;Hironori Imma;Takeshi Nakai

  • A Novel Aryl Migration from Silicon to Carbon: An Efficient Approach to Asymmetric Synthesis of α-Aryl β-Hydroxy Cyclic Amines and Silanols

    Katsuhiko Tomooka;and Atsuo Nakazaki;Takeshi Nakai

  • Perfluoro-enolate chemistry: facile generation and unique reactivities of metal F-1-propen-2-olates

    Cheng-Ping Qian;Takeshi Nakai

  • [1,2]-Wittig Rearrangement of Acetal Systems: A Highly Stereocontrolled Conversion of O-Glycosides to C-Glycosides

    Katsuhiko Tomooka;Hiroshi Yamamoto;Takeshi Nakai

  • Enantioselective Hetero-Diels-Alder reaction with glyoxylate catalyzed by chiral titanium complex: asymmetric synthesis of the lactone portion of mevinolin and compactin

    Masahiro Terada;Koichi Mikami;Takeshi Nakai

  • Acyclic Stereocontrol via [2,3]-Wittig Sigmatropic Rearrangement

    Koichi Mikami;Takeshi Nakai

  • A SYNTHETIC APPROACH TO (+)-THIENAMYCIN FROM METHYL (R)-3-HYDROXYBUTANOATE. A NEW ENTRY TO (3R, 4R)-3-[(R)-1-HYDROXYETHYL]-4-ACETOXY-2-AZETIDINONE

    Toshiyuki Chiba;Takeshi Nakai

  • (Trifluoromethyl)ketene silyl acetal as an equivalent to the trifluoropropionic ester enolate: preparation and aldol-type reactions with acetals

    Tsutomu Yokozawa;Takeshi Nakai;Nobuo Ishikawa

  • Recent developments in the [1,2]-Wittig rearrangement

    Katsuhiko Tomooka;Hiroshi Yamamoto;Takeshi Nakai

  • Chiral titanium complex-catalyzed Diels-Alder reaction: A practical route to anthracycline intermediates

    Koichi Mikami;Masahiro Terada;Yukihiro Motoyama;Takeshi Nakai

  • Ketone perfluoroenolates: Regioselective and stereoselective synthesis, unique reactivities, and electronic properties.

    Cheng Ping Qian;Takeshi Nakai;David A. Dixon;Bruce E. Smart

  • Asymmetric catalysis by a new type of chiral binaphthol-titanium complex

    Dai Kitamoto;Hironori Imma;Takeshi Nakai

  • Asymmetric Catalytic Protonation of Silyl Enol Ethers with Chiral Palladium Complexes

    Masaharu Sugiura;Takeshi Nakai

Frequent Co-Authors

Koichi Mikami
Koichi Mikami Tokyo Institute of Technology
Masahiro Terada
Masahiro Terada Tohoku University
Paul G. Gassman
Paul G. Gassman University of Minnesota
Tsutomu Yokozawa
Tsutomu Yokozawa Kanagawa University
Teck-Peng Loh
Teck-Peng Loh Nanyang Technological University
Takashi Takahashi
Takashi Takahashi Nagoya University
Shunichi Fukuzumi
Shunichi Fukuzumi Osaka University
David A. Dixon
David A. Dixon University of Alabama
Donald J. Burton
Donald J. Burton University of Iowa
Junzo Otera
Junzo Otera Okayama University of Science

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