Tetrahedron

Push–pull structures with a pyrazine core and hexatriene chain: synthesis and light-emitting properties

N Hebbar, Y Ramondenc, G Plé, G Dupas, N Plé

文献索引：Hebbar, Nordine; Ramondenc, Yvan; Ple, Gerard; Dupas, Georges; Ple, Nelly Tetrahedron, 2009 , vol. 65, # 21 p. 4190 - 4200

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被引用次数: 20

摘要

In this paper, we describe the synthesis of various push–pull molecules with a central pyrazine unit connected to a hexatriene chain terminated by various p-substituted phenyl groups. The key steps involve metallation and subsequent transmetallation of 2-chloro and 2, 6-dichloropyrazine followed by a Negishi cross-coupling reaction of the intermediate organozinc derivative with (2E, 4E)-5-bromopentadienal. The aldehydes are then ...