Evidence map›Paper›PMID 25099350›Full record

ArticleJournal of the American Chemical Society2014

Hydroxyproline-derived pseudoenantiomeric [2.2.1] bicyclic phosphines: asymmetric synthesis of (+)- and (-)-pyrrolines.

Christopher E Henry, Qihai Xu, Yi Chiao Fan, Tioga J Martin, Lee Belding, Travis Dudding, Ohyun Kwon

Abstract read
In one paragraph

Article in Journal of the American Chemical Society, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.

0numbers the graph read from it
0cells of the map it votes in
33citing 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

33 citing papers in PubMed.

  1. Article
  2. Article
  3. Review
  4. Synthesis through C(spAccounts of chemical research · 2025
    Article
  5. Synthesis of SpiropyrrolinesThe Journal of organic chemistry · 2024
    Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Enantioselective synthesis ofChemical science · 2020
    Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Review
  19. Discussion Addendum for: Phosphine-Catalyzed [3 + 2] Annulation: Synthesis of Ethyl 5-(Organic syntheses; an annual publication of satisfactory methods for the preparation of organic chemicals · 2019
    Article
  20. Organophosphine-Catalyzed [4C+X] Annulations.Molecules (Basel, Switzerland) · 2018
    Review
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.

Christopher E HenryDepartment of Chemistry and Biochemistry, University of California , Los Angeles, California 90095-1569, United States.
Qihai Xu
Yi Chiao Fan
Tioga J Martin
Lee Belding
Travis Dudding
Ohyun Kwon

Funding

CHEMISTRY BIOLOGY INTERFACE TRAINING PROGRAMT32GM008496 · NIGMS · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI MAYNARD, HEATHER D · 1993 to 2019
$6.3M
Phosphine-Catalyzed Annulations and Their ApplicationsR01GM071779 · NIGMS · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI OHYUN KWON · 2006 to 2026
$5.7M
NIGMS NIH HHS GM08496NIGMS NIH HHS R01 GM071779NIGMS NIH HHS R01GM071779NIGMS NIH HHS T32 GM008496
6 · The paper itself

Abstract

We have prepared two new diastereoisomeric 2-aza-5-phosphabicyclo[2.2.1]heptanes from naturally occurring trans-4-hydroxy-L-proline in six chemical operations. These syntheses are concise and highly efficient, with straightforward purification. When we used these chiral phosphines as catalysts for reactions of γ-substituted allenoates with imines, we obtained enantiomerically enriched pyrrolines in good yields with excellent enantioselectivities. These two diastereoisomeric phosphines functioned as pseudoenantiomers, providing their chiral pyrrolines with opposite absolute configurations.

Indexed as

Bridged Bicyclo CompoundsHydroxyprolineMolecular StructurePhosphinesPyrrolesStereoisomerismBridged Bicyclo CompoundsHydroxyprolinePhosphinesPyrrolespyrroline

Identifiers

PMID25099350
PMCPMC4151783

What OpenQuestion holds

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Read underepoch 390

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.