Use of the Pd-PromotedExtended One-Pot (EOP) Synthetic Protocol for the Modular Construction of Poly-(arylene ethynylene)co-Polymers [?Ar?C?C?Ar??C?C?]n, Opto- and Electro-Responsive Materials for Advanced Technology
作者:Alessandra Micozzi、Monica Ottaviani、Giorgio Giardina、Antonella Ricci、Roberto Pizzoferrato、Tiffany Ziller、Dario Compagnone、Claudio Lo?Sterzo
DOI:10.1002/adsc.200404233
日期:2005.1
Pd-catalyzed coupling of organostannanes and aromatic halides (Stille reaction), the EOP synthetic route optimizes and reduces the use of tin, because during the multi-step one-pot process, tin intermediates are in situ formed by complete reconversion of tin by-products generated in the course of the transformation. In addition, after formation and isolation of polymeric materials, tin-containing products are
我们报告了我们的新型多步/一锅/钯促进合成策略(称为扩展一锅(EOP))在制备聚合物共轭体系中的应用,该体系的特征是骨架由规则交替的炔烃和亚芳基部分组成[ C C A C C B ] n。“ A ”单元(或模块)负责给聚合物留下深刻的机械强度,化学稳定性和可加工性,而选择了不同的“ B ”单元(或模块)以获得具有不同功能特性的聚合物。借助这种“模块化方法”的概念,一系列合作-聚(亚芳基亚乙炔基)的通式[氩Ç Ç中,Ar' Ç Ç ] Ñ [Ar为2,5-双(辛氧基)苯; 已经形成了潜在地用于制造感官,电活性和发光材料的Ar'= 1,10-菲咯啉,氢醌,吡啶,四氟苯,二噻吩,苯和蒽。对这些材料在溶液和固态下的光物理性质的研究表明,取决于Ar'的性质和聚合物主链中共轭作用的扩展,性质会有很大程度的变化。这个EOP合成方案具有多个和顺序的一锅式Pd催化工艺,其特点是催化剂装料量极低,反应时间始终