Evidence map›Paper›PMID 29988150›Full record

ArticleNature chemistry2018

Approaching sub-ppm-level asymmetric organocatalysis of a highly challenging and scalable carbon-carbon bond forming reaction.

Han Yong Bae, Denis Höfler, Philip S J Kaib, Pinar Kasaplar, Chandra Kanta De, Arno Döhring, Sunggi Lee, Karl Kaupmees, Ivo Leito, Benjamin List

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Article in Nature chemistry, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing 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

28 citing papers in PubMed.

  1. Article
  2. Article
  3. Review
  4. Catalytic Asymmetric (Journal of the American Chemical Society · 2025
    Article
  5. Article
  6. Article
  7. A robust heterogeneous chiral phosphoric acid enables multi decagram scale production of optically activeGreen chemistry : an international journal and green chemistry resource : GC · 2024
    Article
  8. Review
  9. Article
  10. Asymmetric Catalytic Friedel-Crafts Reactions of Unactivated Arenes.Journal of the American Chemical Society · 2023
    Article
  11. Article
  12. Organocatalytic DYKAT ofJournal of the American Chemical Society · 2023
    Article
  13. Organocatalytic Asymmetric Synthesis of Si-Stereogenic Silyl Ethers.Journal of the American Chemical Society · 2022
    Article
  14. Article
  15. Article
  16. Article
  17. Synthesis of 1-Silabenzo[ACS omega · 2022
    Article
  18. Review
  19. Article
  20. Confinement-Controlled, EitherJournal of the American Chemical Society · 2021
    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

10 authors.

Han Yong BaeMax-Planck-Institut für Kohlenforschung, Mülheim an der Ruhr, Germany.ORCID http://orcid.org/0000-0002-7559-7919
Denis HöflerMax-Planck-Institut für Kohlenforschung, Mülheim an der Ruhr, Germany.
Philip S J KaibMax-Planck-Institut für Kohlenforschung, Mülheim an der Ruhr, Germany.
Pinar KasaplarMax-Planck-Institut für Kohlenforschung, Mülheim an der Ruhr, Germany.
Chandra Kanta DeMax-Planck-Institut für Kohlenforschung, Mülheim an der Ruhr, Germany.
Arno DöhringMax-Planck-Institut für Kohlenforschung, Mülheim an der Ruhr, Germany.
Sunggi LeeMax-Planck-Institut für Kohlenforschung, Mülheim an der Ruhr, Germany.
Karl KaupmeesUniversity of Tartu, Institute of Chemistry, Tartu, Estonia.
Ivo LeitoUniversity of Tartu, Institute of Chemistry, Tartu, Estonia.ORCID http://orcid.org/0000-0002-3000-4964
Benjamin ListMax-Planck-Institut für Kohlenforschung, Mülheim an der Ruhr, Germany. list@kofo.mpg.de.ORCID http://orcid.org/0000-0002-9804-599X

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The chemical synthesis of organic molecules involves, at its very essence, the creation of carbon-carbon bonds. In this context, the aldol reaction is among the most important synthetic methods, and a wide variety of catalytic and stereoselective versions have been reported. However, aldolizations yielding tertiary aldols, which result from the reaction of an enolate with a ketone, are challenging and only a few catalytic asymmetric Mukaiyama aldol reactions with ketones as electrophiles have been described. These methods typically require relatively high catalyst loadings, deliver substandard enantioselectivity or need special reagents or additives. We now report extremely potent catalysts that readily enable the reaction of silyl ketene acetals with a diverse set of ketones to furnish the corresponding tertiary aldol products in excellent yields and enantioselectivities. Parts per million (ppm) levels of catalyst loadings can be routinely used and provide fast and quantitative product formation in high enantiopurity. In situ spectroscopic studies and acidity measurements suggest a silylium ion based, asymmetric counteranion-directed Lewis acid catalysis mechanism.

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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.