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Synthesis of oligo(thienylenevinylenes) substituted with alkoxy groups

✍ Scribed by Noboru Ono; Hideki Okumura; Takashi Murashima

Publisher
John Wiley and Sons
Year
2001
Tongue
English
Weight
89 KB
Volume
12
Category
Article
ISSN
1042-7163

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✦ Synopsis

Abstract

Conjugated oligomers based on a combination of thiophene and 3,4‐dialkoxythiophene moieties have been synthesized via the Vilsmeier formylation, Wittig‐Honer reaction, and McMurry coupling reaction starting from dimethyl 3,4‐dihydroxythiophene‐2,5‐dicarboxylates. Comparison of the optical and electrochemical properties shows that the mixed π‐conjugated oligomers of thiophene and 3,4‐dialkoxythiophene produces a decrease of the highest occupied molecular orbital‐lowest unoccupied molecular orbital gap that is attributed to the electron‐donating property of the alkoxy groups. © 2001 John Wiley & Sons, Inc. Heteroatom Chem 12:414–417, 2001

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