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首页> 外文期刊>Angewandte Chemie >The [2+2] Cycloaddition-Retroelectrocyclization (CA-RE) Click Reaction: Facile Access to Molecular and Polymeric Push-Pull Chromophores
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The [2+2] Cycloaddition-Retroelectrocyclization (CA-RE) Click Reaction: Facile Access to Molecular and Polymeric Push-Pull Chromophores

机译:[2 + 2]环加成循环复合 - retroeleccyclization(CA-RE)点击反应:容易进入分子和聚合物推拉发色团

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摘要

The [2+2] cycloaddition-retroelectrocyclization (CA-RE) reaction between electron-rich alkynes and electron-deficient alkenes is an efficient procedure to create nonplanar donor-acceptor (D-A) chromophores in both molecular and polymeric platforms. They feature attractive properties including intramolecular charge-transfer (ICT) bands, nonlinear optical properties, and redox activities for use in next-generation electronic and optoelectronic devices. This Review summarizes the development of the CA-RE reaction, starting from the initial reports with organometallic compounds to the extension to purely organic systems. The structural requirements for rapid, high-yielding transformations with true click chemistry character are illustrated by examples that include the broad alkyne and alkene substitution modes. The CA-RE click reaction has been successfully applied to polymer synthesis, with the resulting polymeric push-pull chromophores finding many interesting applications.
机译:富含电子炔烃和电子缺乏烯烃之间的[2 + 2]环加成循环反应(CA-RE)反应是在分子和聚合物平台中产生非平面供体 - 受体(D-A)发色团的有效方法。 它们具有有吸引力的特性,包括分子内电荷转移(ICT)带,非线性光学性能和用于下一代电子和光电器件的氧化还原活动。 本综述总结了Ca-Re反应的发展,从初始报告与有机金属化合物到延伸到纯有机系统。 具有真实点击化学特征的快速,高收益变换的结构要求由包含宽烷烃和烯烃替代模式的实例说明。 Ca-Re Click反应已成功应用于聚合物合成,得到的聚合物推拉发色团发现许多有趣的应用。

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