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1 0 0 0 Facile Preparation of Poly(3-Substituted Thiophene) Block Copolymers by Nickel-catalyzed Deprotonative Polycondensation without External Generation of Thiophene Organometallic Species

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
pp.130523, (Released:2013-06-29)
被引用文献数
9
Thiophene based block copolymers are synthesized by addition of bromothiophene and 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 highly efficiently. Triblock copolymer is also synthesized by the iterative addition of bromothiophene and TMPMgCl·LiCl.

1 0 0 0 Facile Preparation of Poly(3-substituted thiophene) Block Copolymers by Nickel-catalyzed Deprotonative Polycondensation without External Generation of Thiophene Organometallic Species

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.