- 著者
-
Karin Nakamura
Shunsuke Tamba
Atsushi Sugie
Atsunori Mori
- 出版者
- (社)日本化学会
- 雑誌
- Chemistry Letters (ISSN:03667022)
- 巻号頁・発行日
- vol.42, no.10, pp.1200-1202, 2013-10-05 (Released:2013-10-05)
- 参考文献数
- 38
- 被引用文献数
-
9
Thiophene-based block copolymers are synthesized by addition of bromothiophene and the Knochel–Hauser base (TMPMgCl·LiCl). Nickel-catalyzed deprotonative C–H coupling polycondensation of 3-substituted-thiophenes proceeds to give head-to-tail-type poly(3-substituted thiophen-2,5-diyl) bearing nickel at the polymer end. Block copolymers of thiophene derivatives are obtained by successive addition of 2-bromo-3-alkylthiophene and magnesium amide to a living polythiophene end. The use of nickel catalyst bearing an o-tolyl group gives the tolyl-group-terminated thiophene diblock copolymers in high efficiency. Triblock copolymer is also synthesized by the iterative addition of bromothiophene and TMPMgCl·LiCl.