Synthesis of Stereoregular Telechelic Poly(phenylacetylene)s: Facile Terminal Chain-End Functionalization of Poly(phenylacetylene)s by Terminative Coupling with Acrylates and Acrylamides in Rhodium-Catalyzed Living Polymerization of Phenylacetylenes
Synthesis of Stereoregular Telechelic Poly(phenylacetylene)s: Facile Terminal Chain-End Functionalization of Poly(phenylacetylene)s by Terminative Coupling with Acrylates and Acrylamides in Rhodium-Catalyzed Living Polymerization of Phenylacetylenes
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DOI：
10.1021/jacs.1c00150
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发表时间：
2021-02-18
影响因子：
15
通讯作者：
Maeda, Katsuhiro
中科院分区：
文献类型：
--
作者：
Echizen, Kensuke;Taniguchi, Tsuyoshi;Maeda, Katsuhiro
我们最近开发了一种基于铑的多组分催化体系，在苯基乙炔的活性聚合过程中，通过与末端有机钠(I)形成C-C键，将各种α、β不饱和羰基化合物（如丙烯酸酯和丙烯酰胺）定量地引入到聚苯基乙炔的末端链端，这些羰基化合物被用作终止试剂。由于在我们的多组分催化体系中用作引发剂的芳基硼酸衍生物的组分被定量地引入到所得到的聚合物的引发端，这使得在初始链和末端链上具有各种官能团的立体规则远旋聚（苯乙炔）的合成变得容易和通用。
Various alpha,beta-unsaturated carbonyl compounds, such as acrylates and acrylamides, were quantitatively introduced to the terminal chain end of poly(phenylacetylene)s by C-C bond formation with terminal organorhodium(I) species formed in the living polymerization of phenylacetylenes with a rhodium-based multicomponent catalytic system that we have recently developed, when these carbonyl compounds were used as terminating reagents. This enables the facile and versatile synthesis of stereoregular telechelic poly(phenylacetylene)s with various functional groups at both the initial and terminal chain ends because the components of aryl boronic acid derivatives used as initiators in our multicomponent catalytic system are quantitatively introduced to the initiating end of the resulting polymer.