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Rapid Access to 2,2′‐Bithiazole‐Based Copolymers via Sequential Palladium‐Catalyzed C–H/C–X and C–H/C–H Coupling Reactions
Author(s) -
Guo Qiang,
Jiang Ruyong,
Wu Di,
You Jingsong
Publication year - 2016
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.201600028
Subject(s) - copolymer , palladium , regioselectivity , monomer , coupling reaction , catalysis , polymer chemistry , thiazole , atom economy , materials science , conjugated system , chemistry , polymer , stereochemistry , organic chemistry
A rapid access to 2,2′‐bithiazole‐based copolymers has been developed on the basis of the sequential palladium‐catalyzed CH/CX and CH/CH coupling reactions. To assemble a “copolymer” through homopolymerization, a type of symmetric A‐B‐A‐type building block is designed as the monomer and prepared via the regioselective C5H arylation of thiazole. A PdCl 2 /CuCl‐cocatalyzed oxidative CH/CH homopolymerization has been established to afford the 2,2′‐bithiazole‐based copolymers with high M n (up to 69400). The current protocol features atom‐ and step‐economy and exhibits a potential in the highly efficient construction of conjugated copolymers.