Evidence map›Paper›PMID 34094285›Full record

ArticleChemical science2020

Stereoselective synthesis of pentasubstituted 1,3-dienes

Zhijun Zhou, Jiachang Chen, Herong Chen, Wangqing Kong

Open access · diamondAbstract read
In one paragraph

Article in Chemical science, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
3.9field-weighted citation impact, top 5% of its field
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

11 citing papers in PubMed, 50 citations in OpenAlex.

  1. Article
  2. Dienes as Versatile Substrates for Transition Metal-Catalyzed Reactions.Angewandte Chemie (International ed. in English) · 2024
    Review
  3. Article
  4. Article
  5. Article
  6. Article
  7. Rapid access toChemical science · 2022
    Article
  8. Article
  9. Review
  10. Article
  11. 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

4 authors at 1 institution in 1 country.

Zhijun ZhouInstitute for Advanced Studies (IAS), Wuhan University Wuhan Hubei 430072 P. R. China wqkong@whu.edu.cn.
Jiachang ChenInstitute for Advanced Studies (IAS), Wuhan University Wuhan Hubei 430072 P. R. China wqkong@whu.edu.cn.
Herong ChenInstitute for Advanced Studies (IAS), Wuhan University Wuhan Hubei 430072 P. R. China wqkong@whu.edu.cn.
Wangqing KongInstitute for Advanced Studies (IAS), Wuhan University Wuhan Hubei 430072 P. R. China wqkong@whu.edu.cn.ORCID https://orcid.org/0000-0003-3260-0097
Wuhan University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The reductive coupling of alkynes represents a powerful strategy for the rapid synthesis of highly substituted 1,3-dienes. This method has the advantages of high atom and step economy, and readily available substrates. Unfortunately, the intermolecular coupling of unsymmetrical internal alkynes remains extremely challenging due to the difficulty in controlling self-dimerization and cross-coupling, as well as stereo- and regioselectivity. Previous reports are still limited to intramolecular processes or the use of stoichiometric amounts of metal catalyst. Herein, we report that nickel-catalyzed reductive coupling of two unsymmetrical internal alkynes can overcome the above-mentioned limitations by using a hemilabile directing group strategy to control the regioselectivity. A series of synthetically challenging penta-substituted 1,3-dienes are obtained in good yields with high regio- and enantioselectivity (mostly > 20/1 rr, >90% ee).

Identifiers

PMID34094285
PMCPMC8162379
OpenAlexW3083847410

What OpenQuestion holds

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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.