Evidence map›Paper›PMID 28042458›Full record

ArticleChemical science2015

Rh-catalyzed Reagent-Free Ring Expansion of Cyclobutenones and Benzocyclobutenones.

Peng-Hao Chen, Joshua Sieber, Chris H Senanayake, Guangbin Dong

Abstract read
In one paragraph

Article in Chemical science, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing 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

13 citing papers in PubMed.

  1. Article
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  11. Cyclobutenones and Benzocyclobutenones: Versatile Synthons in Organic Synthesis.Chemistry (Weinheim an der Bergstrasse, Germany) · 2016
    Review
  12. Article
  13. 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

4 authors.

Peng-Hao ChenThe University of Texas at Austin, Department of Chemistry, Austin, TX 78712, United States.
Joshua SieberDepartment of Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road/P.O. Box 368, Ridgefield, Connecticut 06877-0368, United States.
Chris H SenanayakeDepartment of Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road/P.O. Box 368, Ridgefield, Connecticut 06877-0368, United States.
Guangbin DongThe University of Texas at Austin, Department of Chemistry, Austin, TX 78712, United States.

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 GM109054
6 · The paper itself

Abstract

Here we report a reagent-free rhodium-catalyzed ring-expansion reaction via C-C cleavage of cyclobutenones. A variety of poly-substituted cyclopentenones and 1-indanones can be synthesized from simple cyclobutenones and benzocyclobutenones. The reaction condition is near pH neutral without additional oxidants or reductants. The potential for developing a dynamic kinetic asymmetric transformation of this reaction has also been demonstrated. Further study supports the proposed pathway involving Rh-insertion into the cyclobutenone C-C bond, followed by β-hydrogen elimination, olefin insertion and reductive elimination.

Identifiers

PMID28042458
PMCPMC5201212

What OpenQuestion holds

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LicenceCC BY-NC
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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.