Evidence map›Paper›PMID 27321707›Full record

ArticleOrganic letters2016

Synthesis and Reactivity of Triazaphenanthrenes.

Sarah Fernandez, Maximilian A Ganiek, Mariia Karpacheva, Fabian C Hanusch, Stephan Reuter, Thomas Bein, Florian Auras, Paul Knochel

Abstract read
In one paragraph

Article in Organic letters, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing 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

3 citing papers in PubMed.

  1. Article
  2. Article
  3. 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

8 authors.

Sarah FernandezDepartment of Chemistry, Ludwig-Maximilians-Universität , Butenandtstr. 5-13, 81377 Munich, Germany.
Maximilian A GaniekDepartment of Chemistry, Ludwig-Maximilians-Universität , Butenandtstr. 5-13, 81377 Munich, Germany.
Mariia KarpachevaDepartment of Chemistry, Ludwig-Maximilians-Universität , Butenandtstr. 5-13, 81377 Munich, Germany.
Fabian C HanuschDepartment of Chemistry, Ludwig-Maximilians-Universität , Butenandtstr. 5-13, 81377 Munich, Germany.
Stephan ReuterDepartment of Chemistry, Ludwig-Maximilians-Universität , Butenandtstr. 5-13, 81377 Munich, Germany.
Thomas BeinDepartment of Chemistry, Ludwig-Maximilians-Universität , Butenandtstr. 5-13, 81377 Munich, Germany.
Florian AurasDepartment of Chemistry, Ludwig-Maximilians-Universität , Butenandtstr. 5-13, 81377 Munich, Germany.
Paul KnochelDepartment of Chemistry, Ludwig-Maximilians-Universität , Butenandtstr. 5-13, 81377 Munich, Germany.

Funding

European Research Council 321339
6 · The paper itself

Abstract

Pyridonaphthyridines (triazaphenanthrenes) were prepared in 4 steps and in 13-52% overall yield using Negishi cross-couplings between iodopicolines and 2-chloro-pyridylzinc derivatives. After chlorination, Gabriel amination and spontaneous ring-closure, the final aromatization leading to the triazaphenanthrenes was achieved with chloranil. This heterocyclic scaffold underwent a nucleophilic addition at position 6 leading to further functionalized pyridonaphthyridines. The influence of these chemical modifications on the optical properties was studied by steady-state and time-resolved optical spectroscopy. While the thiophene-substituted heterocycles exhibited the most extended absorption, the phenyl- and furan-substituted compounds showed a stronger photoluminescence, reaching above 20% quantum yield and lifetimes of several nanoseconds.

Identifiers

PMID27321707
PMCPMC5291649

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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.