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Regioselective synthesis and metallation of tributylstannylfluoropyrazines. Application to the synthesis of some new fluorinated liquid crystals diazines. Part 34

✍ Scribed by Frédéric Toudic; Arnault Heynderickx; Nelly Plé; Alain Turck; Guy Quéguiner

Book ID
104205488
Publisher
Elsevier Science
Year
2003
Tongue
French
Weight
257 KB
Volume
59
Category
Article
ISSN
0040-4020

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✦ Synopsis

Starting from fluoropyrazine, a general synthetic route including metallation and palladium-catalyzed cross-coupling reactions is described to access to rod-like alkylaryl or diarylpyrazines. Among them, some have liquid crystalline properties.

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Synthesis of aryltrifluoromethylpyridazi
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✍ Sylvain Achelle; Nelly Plé; Alain Turck; Jean-Philippe Bouillon; Charles Portell 📂 Article 📅 2006 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 337 KB

Conjugated oligomers with a trifluoromethylpyridazine unit have been synthesized by Suzuki crosscoupling reaction. These oligomers could be used as building block for construction of supramolecules or as liquid crystals when they are substituted by long chain alkoxy groups.