Evidence map›Paper›PMID 33452235›Full record

ArticleNature communications2021

Enantioselective preparation of mechanically planar chiral rotaxanes by kinetic resolution strategy.

Ayumi Imayoshi, Bhatraju Vasantha Lakshmi, Yoshihiro Ueda, Tomoyuki Yoshimura, Aki Matayoshi, Takumi Furuta, Takeo Kawabata

Abstract read
In one paragraph

Article in Nature communications, 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. Article
  2. Article
  3. Rotaxane synthesisRSC advances · 2025
    Article
  4. Article
  5. The End of the Beginning of Mechanical Stereochemistry.Accounts of chemical research · 2024
    Article
  6. Article
  7. The Final Stereogenic Unit of [2]Rotaxanes: Type 2 Geometric Isomers.Journal of the American Chemical Society · 2024
    Article
  8. Mechanically Planar-to-Point Chirality Transmission in [2]Rotaxanes.Journal of the American Chemical Society · 2024
    Article
  9. Review
  10. Article
  11. A Co-conformationally "Topologically" Chiral Catenane.Journal of the American Chemical Society · 2022
    Article
  12. Article
  13. Direct synthetic routes to functionalised crown ethers.Organic chemistry frontiers : an international journal of organic chemistry · 2021
    Review
  14. Article
  15. Diastereoselective Amplification of a Mechanically Chiral [2]Catenane.Journal of the American Chemical Society · 2021
    Article
  16. 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

7 authors.

Ayumi ImayoshiInstitute for Chemical Research, Kyoto University, Uji, Kyoto, 611-0011, Japan.ORCID 0000-0003-0163-8148
Bhatraju Vasantha LakshmiInstitute for Chemical Research, Kyoto University, Uji, Kyoto, 611-0011, Japan.ORCID 0000-0003-0782-3221
Yoshihiro UedaInstitute for Chemical Research, Kyoto University, Uji, Kyoto, 611-0011, Japan.ORCID 0000-0002-5485-2722
Tomoyuki YoshimuraFaculty of Pharmaceutical Sciences, Institute of Medical, Pharmaceutical, and Health Sciences, Kanazawa University, Kakuma-machi, Kanazawa, 920-1192, Japan.ORCID 0000-0002-6931-1048
Aki MatayoshiInstitute for Chemical Research, Kyoto University, Uji, Kyoto, 611-0011, Japan.ORCID 0000-0001-5730-2155
Takumi FurutaInstitute for Chemical Research, Kyoto University, Uji, Kyoto, 611-0011, Japan.ORCID 0000-0003-1037-9715
Takeo KawabataInstitute for Chemical Research, Kyoto University, Uji, Kyoto, 611-0011, Japan. kawabata@scl.kyoto-u.ac.jp.ORCID 0000-0002-9959-0420

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Asymmetric synthesis of mechanically planar chiral rotaxanes and topologically chiral catenanes has been a long-standing challenge in organic synthesis. Recently, an excellent strategy was developed based on diastereomeric synthesis of rotaxanes and catenanes with mechanical chirality followed by removal of the chiral auxiliary. On the other hand, its enantioselective approach has been quite limited. Here, we report enantioselective preparation of mechanically planar chiral rotaxanes by kinetic resolution of the racemates via remote asymmetric acylation of a hydroxy group in the axis component, which provides an unreacted enantiomer in up to >99.9% ee in 29% yield (the theoretical maximum yield of kinetic resolution of racemate is 50%). While the rotaxane molecules are expected to have conformational complexity, our original catalysts enabled to discriminate the mechanical chirality of the rotaxanes efficiently with the selectivity factors in up to 16.

Identifiers

PMID33452235
PMCPMC7811017

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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.