Macromolecules

New acetylenic monomers and polymers from 4, 5-dicyanoimidazole

CG Densmore, PG Rasmussen

文献索引：Densmore, Crystal G.; Rasmussen, Paul G. Macromolecules, 2004 , vol. 37, # 16 p. 5900 - 5910

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被引用次数: 7

摘要

An efficient synthesis of 1-methyl-2-ethynyl-4, 5-dicyanoimidazole via Sonogashira coupling is described. Our optimized method generates 1-methyl-2-ethynyl-4, 5-dicyanoimidazole in almost 80% yield from 1-methyl-2-bromo-4, 5-dicyanoimidazole. Syntheses of the ethyl, propyl, and p-methoxybenzyl derivatives of 2-ethynyl-4, 5-dicyanoimidazole are also reported. The polymerization of 1-methyl-2-ethynyl-4, 5-dicyanoimidazole with transition- ...