Highly Tin-Selective Stille Coupling: Synthesis of a Polymer Containing a Stannole in the Main Chain
Highly Tin-Selective Stille Coupling: Synthesis of a Polymer Containing a Stannole in the Main Chain
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DOI：
10.1002/anie.201407377
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发表时间：
2014-11-17
影响因子：
16.6
通讯作者：
Staubitz, Anne
中科院分区：
文献类型：
--
作者：
Linshoeft, Julian;Baum, Evan J.;Staubitz, Anne
将较重的14族元素杂原子掺入半导体聚合物中导致不寻常的光电性质。然而，含有锡醇的聚合物迄今为止尚未获得。我们报告的合成路线，一个定义明确的，含锡醇的聚合物，这类p-共轭聚合物的第一个例子。这条路线是通过开发双官能化锡醇单体和高度锡选择性的Stille偶联反应，使锡醇中的锡保持不变。与聚（3-正己基噻吩）相比，所得聚合物显示出显着的红移，其吸收。
The incorporation of heavier Group 14 element heteroles into semiconducting polymers leads to unusual optoelectronic properties. However, polymers containing stannoles have not been accessible to date. We report a synthetic route to a well-defined, stannole-containing polymer, the first example of this class of p-conjugated polymers. This route was made possible by developing difunctionalized stannole monomers and highly tin-selective Stille coupling reactions that leave the tin in the stannole untouched. Compared to poly( 3-n-hexylthiophene), the resulting polymer displays a remarkable bathochromic shift in its absorption.