Science Explorer Back to mapMap
Discussion
Topic · Organic Chemistry

Organic Chemistry Cycloaddition Reactions

Organic Chemistry Cycloaddition Reactions is a research topic within Organic Chemistry. Science Explorer counts 25k research works in it since 1950. 10.5% of them reached the world's top 10% most cited for their field and year.

This cluster of papers focuses on understanding the reactivity of organic molecules, particularly in the context of cycloaddition reactions and asymmetric epoxidation. It explores concepts such as electrophilicity, nucleophilicity, and density functional theory to quantitatively characterize and comprehend the mechanisms of these reactions.

  • Reactivity
  • Organic Chemistry
  • Cycloaddition Reactions
  • Electrophilicity
  • Nucleophilicity
  • Density Functional Theory
  • Asymmetric Epoxidation
  • Molecular Electron Density Theory
  • Diels-Alder Reaction
  • Quantitative Characterization
Research works
25k
fractional, since 1950
In the world top 10%
2.6k
per year above
Top-10% rate
10.5%
share of its works in the world top 10%
Growth, 2018-21 → 2022-25
+9%
the tick is no change
Largest producer
China
23% of the 10 largest, 2022-now
Organic Chemistry Cycloaddition Reactions

Which countries lead Organic Chemistry Cycloaddition Reactions research?

By volume, China and India publish the most (189 and 142 works in 2022-now).

By volume, 2022-now

  1. 1 China 189 works
  2. 2 India 142 works
  3. 3 Russia 110 works
  4. 4 United States 107 works
  5. 5 Japan 61 works
  6. 6 Germany 47 works
  7. 7 Poland 42 works
  8. 8 France 41 works
  9. 9 Spain 39 works
  10. 10 Türkiye 35 works

How concentrated that is

The same countries as shares of everything the list above accounts for. A node where two countries do two thirds of the work and one spread evenly across twelve read alike as a ranking and not at all alike here.

China: 23.2%India: 17.5%Russia: 13.5%United States: 13.2%6 others listed: 32.6%23%largest
China189 · 23.2%India142 · 17.5%Russia110 · 13.5%United States107 · 13.2%6 others listed265 · 32.6%

Shares of the rows listed above, not of the whole node.

Which institutions lead Organic Chemistry Cycloaddition Reactions research?

By volume in 2022-now, Russian Academy of Sciences publishes the most Organic Chemistry Cycloaddition Reactions research, followed by Centre National de la Recherche Scientifique and Chinese Academy of Sciences.

By volume, 2022-now

  1. 1 Russian Academy of SciencesRussia 53 works
  2. 2 Centre National de la Recherche ScientifiqueFrance 25 works
  3. 3 Chinese Academy of SciencesChina 12 works
  4. 4 Universitat de ValènciaSpain 11 works
  5. 5 Cracow University of TechnologyPoland 10 works
  6. 6 Islamic Azad University, TehranIran 9 works
  7. 7 King Saud UniversitySaudi Arabia 8 works
  8. 8 Polish Academy of SciencesPoland 6 works
  9. 9 Payame Noor UniversityIran 6 works
  10. 10 Lomonosov Moscow State UniversityRussia 6 works

Who are the leading researchers in Organic Chemistry Cycloaddition Reactions?

The most-cited researchers publishing on Organic Chemistry Cycloaddition Reactions include Michaël Grätzel, George Davey Smith and Jeremy Grimshaw.

  1. 1 Michaël Grätzel Switzerland 458k citations
  2. 2 George Davey Smith United Kingdom 435k citations
  3. 3 Jeremy Grimshaw Canada 281k citations
  4. 4 George M. Whitesides United States 267k citations
  5. 5 Wei Huang China 267k citations
  6. 6 Ben Zhong Tang China 261k citations
  7. 7 Donald G. Truhlar United States 230k citations
  8. 8 Stefan Grimme Germany 224k citations
  9. 9 Axel D. Becke Canada 222k citations
  10. 10 George M. Sheldrick Germany 220k citations

Ranked by citations received across their whole record, among researchers with at least three works on this topic.

What are the most cited papers in Organic Chemistry Cycloaddition Reactions?

The most cited paper in Organic Chemistry Cycloaddition Reactions is "Chemistry and biochemistry of 4-hydroxynonenal, malonaldehyde and related aldehydes" (Hermann Esterbauer, Rudolf Jörg Schaur, Helmward Zöllner, 1991), with 6,700 citations. Next come "Using redundant internal coordinates to optimize equilibrium geometries and transition states" (2,751) and "A Molecular Orbital Theory of Reactivity in Aromatic Hydrocarbons" (2,333).

Most cited papers
#PaperReleasedCitations
1 Chemistry and biochemistry of 4-hydroxynonenal, malonaldehyde and related aldehydes Hermann Esterbauer, Rudolf Jörg Schaur, Helmward Zöllner · Free Radical Biology and Medicine 1991 6,700
2 Using redundant internal coordinates to optimize equilibrium geometries and transition states Chunyang Peng, Philippe Y. Ayala, H. Bernhard Schlegel et al. · Journal of Computational Chemistry 15 Jan 1996 2,751
3 A Molecular Orbital Theory of Reactivity in Aromatic Hydrocarbons Kenichi Fukui, Teijiro Yonezawa, Haruo Shingu · The Journal of Chemical Physics Apr 1952 2,333
4 Asymmetric 1,3-Dipolar Cycloaddition Reactions Kurt V. Gothelf, Karl Anker Jørgensen · Chemical Reviews Review 14 Mar 1998 1,913
5 Catalytic asymmetric epoxidation and kinetic resolution: modified procedures including in situ derivatization Yun Liang Gao, Janice M. Klunder, Robert Mark Hanson et al. · Journal of the American Chemical Society Sep 1987 1,877
All 100 most cited papers, with filters and sorting

Where is Organic Chemistry Cycloaddition Reactions research done?

The largest centres of Organic Chemistry Cycloaddition Reactions research in 2022-now are Moscow (Russia), Beijing (China), Tokyo (Japan) and Ufa (Russia). Among places with at least 20 works in it, it is an unusually large share of all research in Moscow.

Largest cities, 2022-now

  1. 1 MoscowRussia 31 works
  2. 2 BeijingChina 25 works
  3. 3 TokyoJapan 16 works
  4. 4 UfaRussia 15 works
  5. 5 TehranIran 15 works
  6. 6 IrkutskRussia 14 works
  7. 7 ParisFrance 12 works
  8. 8 RiyadhSaudi Arabia 12 works
  9. 9 ValenciaSpain 11 works
  10. 10 ChengduChina 11 works

Where it is the local speciality

  1. MoscowRU · 31.0 works2.5×
← less than its size predicts1×more →

Location quotient: how much more of its research is in Organic Chemistry Cycloaddition Reactions than the world average.

See Organic Chemistry Cycloaddition Reactions on the map

Where is the best place to study Organic Chemistry Cycloaddition Reactions?

Among universities, judged by research, Cracow University of Technology, Universitat de València and King Saud University score highest, combining excellence, specialisation, size, growth and international reach. Research strength is one signal when choosing where to study; it does not measure teaching.

0%20%40%mean 15.5%fractional works in this field (log) →share of work in the world top 10% →Cracow University of…Universitat de Valèn…King Saud UniversityIslamic Azad Univers…
above the meannear itbelow it

One dot per university in the first ten of the table below, at the default weights. The upper left is the interesting corner: small places doing unusually strong work.

Excellenceshare of its work in the world top 10%, 2022-now and all time averaged
40%
Specialisationhow much of its work is in this field, counted up to 10× the world share
10%
Sizeits output in this field, on a log scale
30%
Growthoutput growth, counted from -20% to +20%
10%
Internationalshare of its work with a co-author abroad
10%
Each slider sets a weight; the share it gets of the score is beside it.
#UniversityScoreTop 10%SpecialisationWorksGrowth
1Cracow University of TechnologyPoland 86.931.9%122.1×10 +21.7%
2Universitat de ValènciaSpain 78.316.7%18.7×11 +10.1%
3King Saud UniversitySaudi Arabia 38.812.6%7.9×8 +331.1%
4Islamic Azad University, TehranIran 4.90.8%4.8×9 -57.1%

Universities only. The score blends excellence (40%), size (30%), specialisation (10%), growth (10%), international reach (10%), 2022-now; growth compares 2018-21 with 2022-25 and counts up to +20%, since a jump from a small base is mostly noise.

Every institution in Organic Chemistry Cycloaddition Reactions, country by country

Is Organic Chemistry Cycloaddition Reactions research growing?

Output in 2022-2025 was 9% higher than in 2018-2021, peaking in 2006. The fastest-growing topics are Organic Chemistry Cycloaddition Reactions.

still counting19801990200020102020
grewheldshrank

The same series as a ribbon: one cell per year, darker for more. The line above answers how much; this answers when.

Its share of all research

Growing output can still be a shrinking share: all of science grows. This is Organic Chemistry Cycloaddition Reactions as a percentage of every work published that year, 0.0060% in 2024.

still counting0.050%0.10%0.15%Organic Chemistry Cycloaddition Reactions0.0058% in 202519801990200020102020

Fractional works of Organic Chemistry Cycloaddition Reactions over all fractional works that year. How the balance of science has shifted.

How much of it reaches the world top 10%

Year by year.

still counting20%40%Organic Chemistry Cycloaddition Reactions10.4% in 2025200020102020

Of each year's works in it, the share that reached the world's 10% most cited for their field and year. A field is the world for its own topics, so there is no other line to hold it against.

Which topics inside it are moving

Growth and decline on one axis around a shared zero. Two lists side by side hide the thing that matters: whether the growth dwarfs the decline, or the other way round.

Discussion

Ask a question or share a note about Organic Chemistry Cycloaddition Reactions. Posts are plain text and can be reported.