Polymer-Supported 1,5,7-Triazabicyclo[4.4.0]dec-5-ene as Polyvalent Ligands in the Copper-Catalyzed Huisgen 1,3-Dipolar Cycloaddition
作者:Alberto Coelho、Paula Diz、Olga Caamaño、Eddy Sotelo
DOI:10.1002/adsc.200900680
日期:——
New supported catalysts for the Huisgen’s [3+2] azide‐alkyne cycloaddition have been prepared by immobilization of copper species on commercially available polymeric matrixes incorporating the 1,5,7‐triazabicyclo[4.4.0]dec‐5‐ene (TBD) template. The synergic exploitation of the exceptional copper chelating ability and basicity profile of the TBD framework, in addition to ensuring effective immobilization
通过将铜种类固定在掺有1,5,7-三氮杂双环[4.4.0] dec-5-ene(TBD)的可商购得的聚合物基质上,制备了用于惠斯根[3 + 2]叠氮化物-炔烃环加成反应的新型负载型催化剂模板。协同开发TBD框架出色的铜螯合能力和碱度特征,除了确保有效固定和稳定铜物种外,还可以实施三成分策略。新的催化系统能够开发装饰不同的1,2,3-三唑的区域选择性,高效,模块化,温和和生态友好型多组分合成,从而扩大了Cu催化的Huisgen 1,3-偶极的范围和多功能性环加成。