Evidence map›Paper›PMID 42322164›Full record

ArticleAngewandte Chemie (International ed. in English)2026

Transition Metal-Free Heteroarene Insertion Into C─C Bonds of Benzocyclobutenones.

Cole J Wagner, Guangbin Dong

Abstract read
In one paragraph

Article in Angewandte Chemie (International ed. in English), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. Transition Metal-Free Heteroarene Insertion Into C─C Bonds of Benzocyclobutenones.Angewandte Chemie (International ed. in English) · 2026
    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

2 authors.

Cole J WagnerDepartment of Chemistry, University of Chicago, Chicago, Illinois, United States.
Guangbin DongDepartment of Chemistry, University of Chicago, Chicago, Illinois, United States.ORCID https://orcid.org/0000-0003-1331-6015

Funding

Catalytic C-C Activation of Ketones - Renewal 01R01GM109054 · NIGMS · UNIVERSITY OF TEXAS AT AUSTIN · PI DONG, GUANGBIN · 2013 to 2025
$3.9M
NIGMS NIH HHS R01 GM109054NIGMS NIH HHS R01GM109054University of Chicago
6 · The paper itself

Abstract

The insertion of five-membered heteroarenes into the C─C bonds of benzocyclobutenones (BCBs) has been achieved. This process proceeds under mild conditions and does not require the use of a transition metal catalyst. A variety of fused polycyclic compounds based on indoles, 7-azaindoles, benzothiophenes, benzofurans, and thiophenes relevant to bioactive scaffolds are efficiently accessed through this approach. The reaction is scalable, and the products are suitable for various late-stage derivatizations. Preliminary mechanistic studies reveal a catalytic role of base in facilitating C─C bond cleavage to generate a reactive intermediate which likely engages in subsequent dearomative cycloaddition with heteroarenes.

Indexed as

benzocyclobutenonesC–C activationfused ringsheteroarynetransition‐metal free

Identifiers

PMID42322164
PMCPMC13427194

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.