Evidence map›Paper›PMID 31020717›Full record

ArticleChemistry (Weinheim an der Bergstrasse, Germany)2019

Enantioselective Catalytic [4+1]-Cyclization of ortho-Hydroxy-para-Quinone Methides with Allenoates.

Katharina Zielke, Ondřej Kováč, Michael Winter, Jiří Pospíšil, Mario Waser

Abstract read
In one paragraph

Article in Chemistry (Weinheim an der Bergstrasse, Germany), 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing 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

9 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Chiral Isochalcogenourea-Catalysed Enantioselective (4+2) Cycloadditions of Allenoates.Angewandte Chemie (Weinheim an der Bergstrasse, Germany) · 2024
    Article
  6. Article
  7. Article
  8. Article
  9. 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.

Katharina ZielkeInstitute of Organic Chemistry, Johannes Kepler University Linz, Altenbergerstraße 69, 4040, Linz, Austria.
Ondřej KováčDepartment of Organic Chemistry, Faculty of Science, Palacky University, tř. 17. listopadu 1192/12, 771 46, Olomouc, Czech Republic.
Michael WinterInstitute of Organic Chemistry, Johannes Kepler University Linz, Altenbergerstraße 69, 4040, Linz, Austria.
Jiří PospíšilDepartment of Organic Chemistry, Faculty of Science, Palacky University, tř. 17. listopadu 1192/12, 771 46, Olomouc, Czech Republic.
Mario WaserInstitute of Organic Chemistry, Johannes Kepler University Linz, Altenbergerstraße 69, 4040, Linz, Austria.ORCID http://orcid.org/0000-0002-8421-8642

Funding

Austrian Science Fund P26387-N28Austrian Science Fund FWF P 26387
6 · The paper itself

Abstract

The first highly asymmetric catalytic synthesis of densely functionalized dihydrobenzofurans is reported, which starts from ortho-hydroxy-containing para-quinone methides. The reaction relies on an unprecedented formal [4+1]-annulation of these quinone methides with allenoates in the presence of a commercially available chiral phosphine catalyst. The chiral dihydrobenzofurans were obtained as single diastereomers in yields up to 90 % and with enantiomeric ratios up to 95:5.

Indexed as

allenoatesannulationdiastereoselectivityenantioselectivityorganocatalysis

Identifiers

PMID31020717
PMCPMC6618147

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.