Evidence map›Paper›PMID 40105282›Full record

ArticleJournal of the American Chemical Society2025

Photocatalyzed Epimerization of Quaternary Stereocenters.

Licheng Wu, Baylee N McIntyre, Supeng Wu, Ziqi Jiao, Carter B Fox, Nathan D Schley, Alexander W Schuppe

Abstract read
In one paragraph

Article in Journal of the American Chemical Society, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing 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

5 citing papers in PubMed.

  1. Review
  2. Article
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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.

Licheng WuDepartment of Chemistry, Vanderbilt University, Nashville, Tennessee 37235, United States.
Baylee N McIntyreDepartment of Chemistry, Vanderbilt University, Nashville, Tennessee 37235, United States.
Supeng WuDepartment of Chemistry, Vanderbilt University, Nashville, Tennessee 37235, United States.
Ziqi JiaoDepartment of Chemistry, Vanderbilt University, Nashville, Tennessee 37235, United States.
Carter B FoxDepartment of Chemistry, Vanderbilt University, Nashville, Tennessee 37235, United States.
Nathan D SchleyDepartment of Chemistry, Vanderbilt University, Nashville, Tennessee 37235, United States.ORCID 0000-0002-1539-6031
Alexander W SchuppeDepartment of Chemistry, Vanderbilt University, Nashville, Tennessee 37235, United States.ORCID 0000-0001-6002-9110

Funding

Synthesis and Modification of Natural Products through Inert Bond Cleavage ReactionsR35GM156918 · NIGMS · VANDERBILT UNIVERSITY · PI Alexander W. Schuppe · 2025 to 2026
$792k
NIGMS NIH HHS R35 GM156918
6 · The paper itself

Abstract

Quaternary stereocenters play a crucial role in shaping both the molecular topology of small molecules and the outcome of stereoselective transformations. While considerable progress has been achieved in constructing highly substituted carbon centers with varied substitution patterns, the stereoselective synthesis of quaternary carbon centers remains a significant challenge. Here we report a protocol for the precise manipulation of quaternary stereocenters through epimerization. The critical design element of our ketone α-epimerization process was developing a photoactive imine, which circumvents the numerous deleterious pathways of carbonyl photochemistry. Excitation of this imine with visible light in the presence of a photocatalyst enables reversible C-C bond cleavage and reformation to vary the stereochemistry of the quaternary center. This approach allows us to override intrinsic stereochemical outcomes of C-C bond construction, therefore providing novel tactics for retrosynthetic planning. The broad utility of this protocol was demonstrated by the topological alteration of various classes of carbocyclic scaffolds bearing diverse functional groups.

Identifiers

PMID40105282
PMCPMC11969547

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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.