Evidence map›Paper›PMID 40393027›Full record

ArticleOrganic letters2025

Synthesis of Nonsymmetrical 3,3'-Bicoumarins: Total Synthesis of Arteminorin C, 3,3'-Biisofraxidin, and Biscopoletin.

Mario Castañón-García, Pedro López-Mendoza, Dazaet Galicia-Badillo, Luis D Miranda

Abstract read
In one paragraph

Article in Organic letters, 2025. 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. 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

4 authors.

Mario Castañón-GarcíaInstituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior S.N., Ciudad Universitaria, Coyoacán, Ciudad de México 04510, Mexico.
Pedro López-MendozaInstituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior S.N., Ciudad Universitaria, Coyoacán, Ciudad de México 04510, Mexico.
Dazaet Galicia-BadilloInstituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior S.N., Ciudad Universitaria, Coyoacán, Ciudad de México 04510, Mexico.ORCID 0000-0002-0705-6045
Luis D MirandaInstituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior S.N., Ciudad Universitaria, Coyoacán, Ciudad de México 04510, Mexico.ORCID 0000-0003-0342-8160

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

A strategy to access nonsymmetrical 3,3'-bicoumarins employing two consecutive Perkin reactions is reported. This approach is based on the initial formation of coumarin acetic acid from a salicylaldehyde derivative through a Perkin reaction. A second Perkin condensation between the previously formed coumarin acetic acid and a new functionalized salicylaldehyde allows the formation of nonsymmetrical 3,3'-bicoumarins. Using this approach, 17 nonsymmetrical and two symmetrical 3,3'-bicoumarins were prepared in yields ranging from 30% to 86%, and natural products arteminorin C, 3,3'-biisofraxidin, and biscopoletin were obtained.

Identifiers

PMID40393027
PMCPMC12131221

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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.