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Introducing A Podand Motif to Alkyne Metathesis Catalyst Design: A Highly Active Multidentate Molybdenum(VI) Catalyst that Resists Alkyne Polymerization
Author(s) -
Jyothish Kuthanapillil,
Zhang Wei
Publication year - 2011
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201007559
Subject(s) - alkyne , denticity , catalysis , chemistry , ligand (biochemistry) , molybdenum , polymerization , polymer chemistry , combinatorial chemistry , metathesis , polymer , organic chemistry , metal , biochemistry , receptor
Podand prevents polymers : The molybdenum(VI) propylidyne catalyst 1 with a podand triphenolamine ligand shows high activity in the metathesis of a variety of alkyne substrates, including heterocycles that contain donor moieties. With one substrate‐binding site blocked by the multidentate ligand, the undesired polymerization of small alkynes that occurs with non‐podand‐ligand complex 2 is completely inhibited.