3,4-エチレンジオキシチオフェンとジブロモカルバゾールの直接的アリール化重縮合に関する検討

林 正太郎; 清水 弘樹; 小島 督央; 山本 進一; 小泉 俊雄

doi:10.1295/koron.2017-0037

This article has now been updated. Please use the final version.

Study on Direct Arylation Polycondensation of 3,4-Ethylenedioxythiophene with Dibromocarbazole

Shotaro HAYASHI, Hiroki SHIMIZU, Yoshihisa KOJIMA, Shin-ichi YAMAMOTO, Toshio KOIZUMI

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Keywords: Conjugated Polymers, 3,4-Ethylenedioxythiophene, Direct Arylation, Carbazoles

JOURNAL RESTRICTED ACCESS Advance online publication

Article ID: 2017-0037

DOI https://doi.org/10.1295/koron.2017-0037

The final version of this article is now available: Vol. 74 (2017), No. 6 pp. 588-593

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Abstract

Palladium-catalyzed direct arylation polycondensation of 3,4-ethylenedioxythiophene (EDOT) with dibromocarbazole was investigated by varying heating conditions and microwave heating conditions. The polycondensation of EDOT with 3,6-dibromocarbazole resulted in the alternating copolymer (M_n = 6600) in high yield. In contrast, 2,7-dibromocarbazole shows low reactivity and the polycondensation of EDOT with 2,7-dibromocarbazole resulted in an oligomeric product (M_n < 4000) in low yield.

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