Controlled, Stepwise Syntheses of Oligomers with Modified Quinoxaline Backbones

Author:

Klein Jerome1ORCID,Jung Nicole12ORCID,Bräse Stefan12ORCID

Affiliation:

1. Institute of Biological and Chemical Systems (IBCS-FMS) Karlsruhe Institute of Technology Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany

2. Institute of Organic Chemistry Karlsruhe Institute of Technology Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany

Abstract

AbstractNew 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.

Funder

Deutsche Forschungsgemeinschaft

Publisher

Wiley

Subject

Organic Chemistry,Physical and Theoretical Chemistry

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