Highly Active Multidentate Alkyne Metathesis Catalysts: Ligand-Activity Relationship and Their Applications in Efficient Synthesis of Porphyrin-Based Aryleneethynylene Polymers
作者:Kuthanapillil Jyothish、Qi Wang、Wei Zhang
DOI:10.1002/adsc.201200243
日期:2012.8.13
tris(arylmethyl)ammonium-coordinated molybdenum(VI) propylidyne catalysts was synthesized. Such N-quarternized multidentate catalysts showed high robustness, strong resistance to small alkyne polymerization and significantly enhanced catalytic activity compared to their corresponding tris(arylmethyl)amine-based analogues. The high activity of these new catalysts also enabled the efficient synthesis of ethynylene-bridged
合成了一系列的三(芳甲基)铵配位的钼(VI)丙炔催化剂。与它们相应的基于三(芳基甲基)胺的类似物相比,这种N-季铵化的多齿催化剂显示出高的鲁棒性,对小炔烃聚合的强耐受性和显着增强的催化活性。这些新型催化剂的高活性还使得能够通过炔烃复分解反应有效合成乙炔桥连的卟啉基亚芳基乙炔聚合物,这是一种高效,无缺陷,可行的合成此类引人入胜的聚合物的方法。