Expression of concern

A Convenient Synthesis of Tetrabenzo[de,hi,mn,qr]naphthacene from Readily Available 1,2-Di(phenanthren-4-yl)ethyne

Paper Information

Record ID:

30781

Author(s):

Anupam Mukherjee
Kamalkishore Pati
Rai Shung Liu

Journal:

The Journal of Organic Chemistry ( American Chemical Society (ACS) )

Publication Date:

September 21, 2009

Retraction Date:

July 12, 2021 (4.4 years years ago)

Subject:

Broad Categories:
Chemistry

Specific Fields:
Chemistry

Institution:

Department of Chemistry, National Tsing-Hua University, Hsinchu, Taiwan, ROC

Country:

🇨🇳 China

Article Type:

Research Article

Publisher:

American Chemical Society (ACS)

Open Access:

Yes

DOI:

10.1021/jo901177e

PubMed ID:

19601616

Retraction PubMed ID:

34250795

Expression of concern Details

Retraction Reasons:

Nature of Retraction:

Expression of concern

Retraction Notice:

10.1021/acs.joc.1c01500

Citations (45)

45

Total Citations

4

Post-Retraction
(8.9%)

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Total Citations: 45

Years Since Retraction: 4.4 years

Open Access: Yes

Last Checked: Jul 24, 2025

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A Convenient Synthesis of Tetrabenzo[de,hi,mn,qr]naphthacene from Readily Available 1,2-Di(phenanthren-4-yl)ethyne

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Citations (45)

45

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Synthesis of polycyclic aromatic hydrocarbons: Studies of aryne cycloaddition, acid-catalyzed rearrangement, and coupling pathways

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