Controlled, Stepwise Syntheses of Oligomers with Modified Quinoxaline Backbones

New oligomers based on quinoxaline units were successfully synthesized through multistep reactions using Wittig coupling, affording (E)‐(quinoxalin‐2‐yl)ethene oligomers. Diverse quinoxaline‐based phosphonium salts were designed and synthesized, enabling versatility and compatibility regarding the o...

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Veröffentlicht in:European journal of organic chemistry 2023-02, Vol.26 (6), p.n/a
Hauptverfasser: Klein, Jerome, Jung, Nicole, Bräse, Stefan
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Bräse, Stefan
description New oligomers based on quinoxaline units were successfully synthesized through multistep reactions using Wittig coupling, affording (E)‐(quinoxalin‐2‐yl)ethene oligomers. Diverse quinoxaline‐based phosphonium salts were designed and synthesized, enabling versatility and compatibility regarding the oligomer‐building process. The characterization of the oligomers showed excellent stereoisomer specificity, i.e., a fully E‐configurated conjugated π‐system. The oligomers’ light absorption/emission profiles indicate potential properties for an application in materials science. (E)‐(Quinoxalin‐2‐yl)ethene oligomers with a maximum of six repetition units were successfully synthesized through multistep reactions using Wittig coupling of different quinoxaline units.
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subjects Chemical synthesis
Electromagnetic absorption
Ethylene
Materials science
oligomerization
Oligomers
perfluoro chain
quinoxaline
Quinoxalines
Stereoisomerism
synthetic methods
Wittig reaction
title Controlled, Stepwise Syntheses of Oligomers with Modified Quinoxaline Backbones
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