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Patrick J. Walsh

D-Index & Metrics

Chemistry

D-Index
81
Citations
21015
World Ranking
3298
National Ranking
1088

Patrick J. Walsh 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 Patrick J. Walsh sits on this spectrum.

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 publications 1,295+

This scientist: 566 publications — 92nd percentile

92% of scientists in this discipline score the same or lower.

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

Patrick J. Walsh 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 Patrick J. Walsh sits on this spectrum.

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 D-Index 159+

This scientist: 81 D-Index — 82nd percentile

82% of scientists in this discipline score the same or lower.

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

Overview

Patrick J. Walsh is affiliated with the University of Pennsylvania in the United States. Their primary field of study is Chemistry, with a strong focus on Organic Chemistry, supported by significant work in Inorganic Chemistry, Molecular Biology, Materials Chemistry, and Atmospheric Science.

The research topics that dominate the scientist's work include:

  • Catalytic C-H Functionalization Methods
  • Radical Photochemical Reactions
  • Catalytic Cross-Coupling Reactions
  • Sulfur-Based Synthesis Techniques
  • Asymmetric Hydrogenation and Catalysis
  • Synthesis and Catalytic Reactions
  • Chemical Synthesis and Analysis

Key publications by Patrick J. Walsh cover a range of recent cutting-edge research:

  • Photocatalytic C-H activation and the subtle role of chlorine radical complexation in reactivity, 2021, Science
  • Nickel/Photoredox-Catalyzed Asymmetric Reductive Cross-Coupling of Racemic α-Chloro Esters with Aryl Iodides, 2020, Angewandte Chemie International Edition
  • Migratory functionalization of unactivated alkyl bromides for construction of all-carbon quaternary centers via transposed tert-C-radicals, 2020, Nature Communications
  • Direct kinetic measurements and theoretical predictions of an isoprene-derived Criegee intermediate, 2020, Proceedings of the National Academy of Sciences
  • Catalytic enantioselective reductive domino alkyl arylation of acrylates via nickel/photoredox catalysis, 2021, Nature Communications

Frequent publication venues provide insight into their dissemination channels, including:

  • Chemical Science
  • Organic Letters
  • Angewandte Chemie International Edition
  • Angewandte Chemie
  • Organic Chemistry Frontiers

Collaborations play an important role in their research output, with frequent coauthors such as:

  • Jianyou Mao
  • Xiaodong Yang
  • Haoqiang Zhao
  • Hongbin Zhang
  • Jie Li

Best Publications

  • Inside Cover: Synergistic N-Heterocyclic Carbene/Palladium-Catalyzed Umpolung 1,4-Addition of Aryl Iodides to Enals (Angew. Chem. Int. Ed. 1/2020)

    Wenjun Yang;Bo Ling;Bowen Hu;Haolin Yin

  • Stoichiometric and catalytic hydroamination of alkynes and allene by zirconium bisamides Cp2Zr(NHR)2

    Patrick J. Walsh;Anne M. Baranger;Robert G. Bergman

  • Generation, alkyne cycloaddition, arene carbon-hydrogen activation, nitrogen-hydrogen activation and dative ligand trapping reactions of the first monomeric imidozirconocene (Cp2Zr:NR) complexes

    Patrick J. Walsh;Frederick J. Hollander;Robert G. Bergman

  • A Green Chemistry Approach to Asymmetric Catalysis: Solvent-Free and Highly Concentrated Reactions

    Patrick J. Walsh;Hongmei Li;Cecilia Anaya de Parrodi

  • Fundamentals Of Asymmetric Catalysis

    Patrick J. Walsh;Marisa Kowzlowski

  • Monomeric and dimeric zirconocene imido compounds: synthesis, structure, and reactivity

    Patrick J. Walsh;Frederick J. Hollander;Robert G. Bergman

  • Contribution of fish to the marine inorganic carbon cycle.

    R. W. Wilson;F. J. Millero;J. R. Taylor;P. J. Walsh;P. J. Walsh

  • Variable regiochemistry in the stoichiometric and catalytic hydroamination of alkynes by imidozirconium complexes caused by an unusual dependence of the rate law on alkyne structure and temperature

    Anne M. Baranger;Patrick J. Walsh;Robert G. Bergman

  • Photocatalytic C–H activation and the subtle role of chlorine radical complexation in reactivity

    Qiaomu Yang;Yu-Heng Wang;Yusen Qiao;Michael Gau

  • The electrochemical behavior of cerium(III/IV) complexes: Thermodynamics, kinetics and applications in synthesis

    Nicholas A. Piro;Jerome R. Robinson;Patrick J. Walsh;Eric J. Schelter

  • Insight into the mechanism of the asymmetric addition of alkyl groups to aldehydes catalyzed by titanium-BINOLate species.

    Jaume Balsells;Timothy J. Davis;Patrick Carroll;Patrick J. Walsh

  • Use of achiral and meso ligands to convey asymmetry in enantioselective catalysis

    Patrick J. Walsh;and Alice E. Lurain;Jaume Balsells

  • Palladium-catalyzed C(sp3)-H arylation of diarylmethanes at room temperature: synthesis of triarylmethanes via deprotonative-cross-coupling processes.

    Jiadi Zhang;Ana Bellomo;Andrea D. Creamer;Spencer D. Dreher

  • Innentitelbild: Synergistic N‑Heterocyclic Carbene/Palladium‑Catalyzed Umpolung 1,4‑Addition of Aryl Iodides to Enals (Angew. Chem. 1/2020)

    Wenjun Yang;Bo Ling;Bowen Hu;Haolin Yin

  • A general, highly enantioselective method for the synthesis of D and L alpha-amino acids and allylic amines.

    Young K. Chen;and Alice E. Lurain;Patrick J. Walsh

  • Cobalt–Bisoxazoline-Catalyzed Asymmetric Kumada Cross-Coupling of Racemic α-Bromo Esters with Aryl Grignard Reagents

    Jianyou Mao;Feipeng Liu;Min Wang;Lin Wu

  • A practical catalytic asymmetric addition of alkyl groups to ketones.

    Celina Garcia;Lynne K. Larochelle;Patrick J. Walsh

  • A Mechanistic Study of the Cycloaddition-Cycloreversion Reactions of Zirconium-Imido Complex Cp2Zr(N-t-Bu)(THF) with Organic Imines and Organic Azides

    Karen E. Meyer;Patrick J. Walsh;Robert G. Bergman

  • Titanium-catalyzed enantioselective additions of alkyl groups to aldehydes: mechanistic studies and new concepts in asymmetric catalysis.

    Patrick J. Walsh

  • Synthesis and Crystal Structures of Bis(sulfonamido) Titanium Bis(alkoxide) Complexes: Mechanistic Implications in the Bis(sulfonamide) Catalyzed Asymmetric Addition of Dialkylzinc Reagents to Aldehydes

    Suzy Pritchett;David H. Woodmansee;Peter Gantzel;Patrick J. Walsh

  • Catalytic asymmetric vinylation of ketones.

    Hongmei Li;Patrick J Walsh

  • Nickel/Photoredox‐Catalyzed Asymmetric Reductive Cross‐Coupling of Racemic α‐Chloro Esters with Aryl Iodides

    Haixing Guan;Qianwen Zhang;Patrick J. Walsh;Jianyou Mao

  • Synergistic N-Heterocyclic Carbene/Palladium-Catalyzed Umpolung 1,4-Addition of Aryl Iodides to Enals

    Wenjun Yang;Bo Ling;Bowen Hu;Haolin Yin

Frequent Co-Authors

Patrick J. Carroll
Patrick J. Carroll University of Pennsylvania
Eric J. Schelter
Eric J. Schelter University of Pennsylvania
Robert G. Bergman
Robert G. Bergman University of California, Berkeley
Miquel A. Pericàs
Miquel A. Pericàs University of Barcelona
Marsha I. Lester
Marsha I. Lester University of Pennsylvania
Per-Ola Norrby
Per-Ola Norrby AstraZeneca (Sweden)
Marisa C. Kozlowski
Marisa C. Kozlowski University of Pennsylvania
Zhenfeng Xi
Zhenfeng Xi Peking University
Stephen J. Klippenstein
Stephen J. Klippenstein Argonne National Laboratory
David L. Osborn
David L. Osborn Sandia National Laboratories

External Links

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Related Online Degrees & Career Pathways

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Best Scientists Citing Patrick J. Walsh

Philip Mountford

Philip Mountford

University of Oxford

Publications: 39

Robert G. Bergman

Robert G. Bergman

University of California, Berkeley

Publications: 33

Eric J. Schelter

Eric J. Schelter

University of Pennsylvania

Publications: 31

Laurel L. Schafer

Laurel L. Schafer

University of British Columbia

Publications: 27

Patrick J. Carroll

Patrick J. Carroll

University of Pennsylvania

Publications: 26

Lutz H. Gade

Lutz H. Gade

Heidelberg University

Publications: 26

Reiner Anwander

Reiner Anwander

University of Tübingen

Publications: 23

Hubert Wadepohl

Hubert Wadepohl

Heidelberg University

Publications: 22

Paul Knochel

Paul Knochel

Ludwig-Maximilians-Universität München

Publications: 21

Xiaoming Feng

Xiaoming Feng

Sichuan University

Publications: 20

John Arnold

John Arnold

University of California, Berkeley

Publications: 19

Mark Ediger

Mark Ediger

University of Wisconsin–Madison

Publications: 17

Da-Gang Yu

Da-Gang Yu

Sichuan University

Publications: 17

André B. Charette

André B. Charette

University of Montreal

Publications: 16

Ilan Marek

Ilan Marek

Technion – Israel Institute of Technology

Publications: 16

Eric Clot

Eric Clot

University of Montpellier

Publications: 16

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