Evidence map›Paper›PMID 40425518›Full record

ArticleJournal of the American Chemical Society2025

Carbon-Atom Scavengers Enable Divergent, Selective Carbon Deletion of Azaarenes.

Jisoo Woo, Tergitë Zeqiri, Alec H Christian, Michael C Ryan, Mark D Levin

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 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing 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

8 citing papers in PubMed.

  1. Article
  2. Review
  3. Photo-Stitching of Nitroalkanes via Cross-Denitrative Olefination.Journal of the American Chemical Society · 2026
    Article
  4. Shape-Conserving Atom Replacements.Chemical reviews · 2026
    Review
  5. Article
  6. Article
  7. Article
  8. 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.

Jisoo WooDepartment of Chemistry, University of Chicago, 5735 S. Ellis Avenue, Chicago, Illinois 60637, United States.ORCID 0000-0001-7356-9458
Tergitë ZeqiriDepartment of Chemistry, University of Chicago, 5735 S. Ellis Avenue, Chicago, Illinois 60637, United States.
Alec H ChristianDiscovery Chemistry, Merck & Co., Inc., Boston, Massachusetts 02115, United States.ORCID 0000-0002-7032-230X
Michael C RyanDiscovery Chemistry, Merck & Co., Inc., Boston, Massachusetts 02115, United States.
Mark D LevinDepartment of Chemistry, University of Chicago, 5735 S. Ellis Avenue, Chicago, Illinois 60637, United States.ORCID 0000-0002-4461-363X

Funding

Construction of Heteroarenes Through Single Atom I-RenewalR35GM142768 · NIGMS · UNIVERSITY OF CHICAGO · PI Mark Daniel Levin · 2021 to 2026
$2.6M
NIGMS NIH HHS R35 GM142768
6 · The paper itself

Abstract

Divergent synthesis is a powerful strategy that provides simultaneous access to multiple derivatives of a given substrate. However, the emerging developments in skeletal editing have largely delivered methods that lack this potential for diversification. Herein, we report the serendipitous discovery of reagent-controlled selective deletion of C3 or C2 carbon atoms of quinolines, affording indoles. An initial observation that an impurity in commercial samples of DBU promoted cyclization of a benzoxazepine-derived imidate led to the identification of indoline and aminoethanol as C3- and C2-selective carbon-atom scavengers, respectively. These two methods successfully convert a broad scope of quinolines and related azaarenes to the corresponding indoles and azaindoles, enabling divergent carbon deletion. In-depth mechanistic studies support the HFIP-promoted ring opening of 3,1-benzoxazepines to amidine intermediates as a rate-determining step, while providing insights into the selectivity afforded by indoline. These methods and their associated mechanisms offer a blueprint for the rational design of reagent-controlled, divergent skeletal edits.

Identifiers

PMID40425518
PMCPMC13262761

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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.