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Royal Society of Chemistry, Chemical Communications, 68(49), p. 7552

DOI: 10.1039/c3cc44044c

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Dipyreno- and diperyleno-anthracenes from glyoxylic Perkin reactions

Journal article published in 2013 by Parantap Sarkar, Fabien Durola ORCID, Harald Bock
This paper is available in a repository.
This paper is available in a repository.

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Abstract

Twofold Perkin condensation of 2,5-dibromophenylene-1,4-diacetic acid with arylglyoxylic acids followed by cyclo-dehydrobromination leads to dipyreno- and diperyleno-anthracene tetraesters and diimides. The imides show surprisingly large absorption shifts versus the esters, illustrating that electron-withdrawing substituents at the anthracene unit efficiently impart long wavelength absorption in such electrondeficient graphene nanoribbon fragments.