Retraction notices

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

Type

Expression of concern

Notice date

7/12/2021 0:00

Journal

The Journal of Organic Chemistry

Publisher

American Chemical Society (ACS)

Notice DOI

10.1021/acs.joc.1c01500

Original paper DOI

10.1021/jo901177e

Reasons

• Concerns/Issues about Image
• Original Data and/or Images not Provided and/or not Available

Matching venue names

Name match only, not an authoritative journal identifier.

• The Journal of Organic Chemistry