1000607-97-5Relevant academic research and scientific papers
Highly active multidentate alkyne metathesis catalysts: Ligand-activity relationship and their applications in efficient synthesis of porphyrin-based aryleneethynylene polymers
Jyothish, Kuthanapillil,Wang, Qi,Zhang, Wei
, p. 2073 - 2078,6 (2012)
A series of 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 porphyrin-based arylene ethynylene polymers via alkyne metathesis, which represents a highly efficient, defect-free, viable approach for the synthesis of this class of intriguing polymers. Copyright
Highly Active Multidentate Catalysts for Efficient Alkyne Metathesis
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Paragraph 0215; 0216, (2013/10/08)
The invention relates to highly active and selective catalysts for alkyne metathesis. In one aspect, the invention includes a multidentate organic ligand wherein one substrate-binding site of the metal center is blocked. In another aspect, the invention includes N-quaternized or silane-based multidentate organic ligands, capable of binding to metals. In yet another aspect, the invention includes N-quaternized or silane-based multidentate catalysts. The catalysts of the invention show high robustness, strong resistance to small alkyne polymerization and significantly enhanced catalytic activity compared to their corresponding non-quaternized or non-silane-based multidentate catalyst analogues.
