Evidence map›Paper›PMID 41947538›Full record

ArticleChemistry (Weinheim an der Bergstrasse, Germany)2026

Sustainable Synthesis of 4,7-Dihydro-4,7-ethano-2H-isoindoles-Key Building Blocks to Benzoporphyrins.

Lampros Pascal Gazetas, Michael Ruppel, Christoph Richtzenhain, Frank Hampel, Norbert Jux, Dominik Lungerich

Abstract read
In one paragraph

Article in Chemistry (Weinheim an der Bergstrasse, Germany), 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. 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

6 authors.

Lampros Pascal GazetasDepartment of Chemistry and Pharmacy & Interdisciplinary Center for Molecular Materials (ICMM), Organic Chemistry II, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.
Michael RuppelDepartment of Chemistry and Pharmacy & Interdisciplinary Center for Molecular Materials (ICMM), Organic Chemistry II, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.
Christoph RichtzenhainDepartment of Chemistry and Pharmacy & Interdisciplinary Center for Molecular Materials (ICMM), Organic Chemistry II, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.
Frank HampelDepartment of Chemistry and Pharmacy & Interdisciplinary Center for Molecular Materials (ICMM), Organic Chemistry II, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.
Norbert JuxDepartment of Chemistry and Pharmacy & Interdisciplinary Center for Molecular Materials (ICMM), Organic Chemistry II, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.ORCID https://orcid.org/0000-0002-5673-8181
Dominik LungerichUniv Toulouse, CNRS, CEMES, Toulouse, France.ORCID https://orcid.org/0000-0002-3093-3624

Funding

Deutsche ForschungsgemeinschaftSFB 953 182849149
6 · The paper itself

Abstract

Benzoporphyrins, π extended porphyrin analogues, exhibit remarkable potential for optoelectronic and theragnostic applications, yet have remained largely confined to fundamental studies owing to the challenging synthesis of masked isoindole precursors. Here, we report a concise, scalable three-step synthesis of 4,7-dihydro-4,7-ethano-2H-isoindole, a key building block of the benzoporphyrin framework. Subsequent functionalization affords the corresponding α-ester derivative, enabling controlled access to diverse, lower-symmetry benzoporphyrin architectures. Compared with previous multistep strategies, this scalable route markedly reduces cost, waste generation, and synthetic complexity, representing the most practical synthetic approach to date. This advance enhances the synthetic accessibility of benzoporphyrins and paves the way for their broader implementation in molecular materials and biomedical applications.

Indexed as

benzoporphyringreen chemistrymasked 2H‐isoindolepost‐functionalizationsustainability

Identifiers

PMID41947538
PMCPMC13282909

What Socratic holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

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 Socratic graph.