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Highly Active Multidentate Alkyne Metathesis Catalysts: Ligand‐Activity Relationship and Their Applications in Efficient Synthesis of Porphyrin‐Based Aryleneethynylene Polymers
Author(s) -
Jyothish Kuthanapillil,
Wang Qi,
Zhang Wei
Publication year - 2012
Publication title -
advanced synthesis and catalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.541
H-Index - 155
eISSN - 1615-4169
pISSN - 1615-4150
DOI - 10.1002/adsc.201200243
Subject(s) - chemistry , porphyrin , alkyne , denticity , metathesis , catalysis , combinatorial chemistry , polymer chemistry , ligand (biochemistry) , polymer , polymerization , pincer ligand , organic chemistry , pincer movement , biochemistry , receptor , crystal structure
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.