Evidence map›Paper›PMID 24067712›Full record

ArticleNature2013

Alkane desaturation by concerted double hydrogen atom transfer to benzyne.

Dawen Niu, Patrick H Willoughby, Brian P Woods, Beeraiah Baire, Thomas R Hoye

Abstract read
In one paragraph

Article in Nature, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers.

0numbers the graph read from it
0cells of the map it votes in
36citing 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

36 citing papers in PubMed.

  1. Phosphorane-Promoted C-C Coupling during Aryne Annulations.Angewandte Chemie (International ed. in English) · 2024
    Article
  2. Review
  3. Review
  4. Article
  5. Organic letters · 2021
    Article
  6. Article
  7. Review
  8. Article
  9. Direct observation ofChemical science · 2020
    Article
  10. Article
  11. The Aza-hexadehydro-Diels-Alder Reaction.Journal of the American Chemical Society · 2019
    Article
  12. Article
  13. Article
  14. Article
  15. CuAngewandte Chemie (International ed. in English) · 2018
    Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Dawen NiuDepartment of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, USA.
Patrick H Willoughby
Brian P Woods
Beeraiah Baire
Thomas R Hoye

Funding

SYNTHESIS OF ANTITUMOR AGENTSR01CA076497 · NCI · UNIVERSITY OF MINNESOTA TWIN CITIES · PI HOYE, THOMAS R. · 1998 to 2014
$3.5M
Synthesis Strategies for Bioactive Natural ProductsR01GM065597 · NIGMS · UNIVERSITY OF MINNESOTA TWIN CITIES · PI HOYE, THOMAS R. · 2002 to 2016
$3.1M
NCI NIH HHS CA76497NCI NIH HHS R01 CA076497NIGMS NIH HHS GM65597NIGMS NIH HHS R01 GM065597
6 · The paper itself

Abstract

The removal of two vicinal hydrogen atoms from an alkane to produce an alkene is a challenge for synthetic chemists. In nature, desaturases and acetylenases are adept at achieving this essential oxidative functionalization reaction, for example during the biosynthesis of unsaturated fatty acids, eicosanoids, gibberellins and carotenoids. Alkane-to-alkene conversion almost always involves one or more chemical intermediates in a multistep reaction pathway; these may be either isolable species (such as alcohols or alkyl halides) or reactive intermediates (such as carbocations, alkyl radicals, or σ-alkyl-metal species). Here we report a desaturation reaction of simple, unactivated alkanes that is mechanistically unique. We show that benzynes are capable of the concerted removal of two vicinal hydrogen atoms from a hydrocarbon. The discovery of this exothermic, net redox process was enabled by the simple thermal generation of reactive benzyne intermediates through the hexadehydro-Diels-Alder cycloisomerization reaction of triyne substrates. We are not aware of any single-step, bimolecular reaction in which two hydrogen atoms are simultaneously transferred from a saturated alkane. Computational studies indicate a preferred geometry with eclipsed vicinal C-H bonds in the alkane donor.

Indexed as

AlkanesAlkenesBenzene DerivativesCyclizationHydrogenHydrogenationHydrogen BondingIsomerismOxidation-ReductionAlkanesAlkenesBenzene DerivativesbenzyneHydrogen

Identifiers

PMID24067712
PMCPMC3818522

What OpenQuestion holds

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Registered trials

None linked

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.