Evidence map›Paper›PMID 34621076›Full record

ArticleNature chemistry2021

Isolation and characterization of diazoolefins.

Paul Varava, Zhaowen Dong, Rosario Scopelliti, Farzaneh Fadaei-Tirani, Kay Severin

Abstract read
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In one paragraph

Article in Nature chemistry, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

16 citing papers in PubMed.

  1. Light-Enhanced Synthesis of TiSbACS organic & inorganic Au · 2026
    Article
  2. Postsynthetic modification of N-heterocyclic diazoolefinsDalton transactions (Cambridge, England : 2003) · 2026
    Article
  3. Diazo Transfer From Nitrous Oxide Employing Phosphorus Ylides.Angewandte Chemie (International ed. in English) · 2026
    Article
  4. Bent N-Heterocyclic Allenes From a Well-Defined Titanium Vinylidene Complex.Angewandte Chemie (International ed. in English) · 2026
    Article
  5. Article
  6. Review
  7. Article
  8. Isolation of Anionic N-Heterocyclic Olefins and Their Versatile Reactivity.Angewandte Chemie (International ed. in English) · 2025
    Article
  9. Article
  10. Ambiphilic Reactivity of Iridium Complexes withJournal of the American Chemical Society · 2025
    Article
  11. Review
  12. An Azide-Free Synthesis of Metallodiazomethanes Using Nitrous Oxide.Journal of the American Chemical Society · 2024
    Article
  13. Article
  14. Article
  15. Characterization of a Triplet Vinylidene.Journal of the American Chemical Society · 2021
    Article
  16. More details on diazoolefins.Nature chemistry · 2021
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors.

Paul VaravaInstitut des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland.ORCID 0000-0003-4998-5819
Zhaowen DongInstitut des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland.
Rosario ScopellitiInstitut des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland.
Farzaneh Fadaei-TiraniInstitut des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland.ORCID 0000-0002-7515-7593
Kay SeverinInstitut des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland. kay.severin@epfl.ch.ORCID 0000-0003-2224-7234

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Diazoolefins tend to be highly reactive compounds that rapidly lose dinitrogen. So far, most experimental evidence for diazoolefins is indirect, via trapping experiments. Here we show that diazoolefins are observed to form in reactions of N-heterocyclic olefins with nitrous oxide. The products benefit from resonance stabilization, which enables isolation on a preparative scale, and comprehensive characterization, which includes crystallographic analyses. N-heterocyclic diazoolefins show a strong ylidic character, with a high charge density at the carbon atom next to the diazo group. Despite the presence of terminal N

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.