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A Highly Active, Heterogeneous Catalyst for Alkyne Metathesis
Author(s) -
Weissman Haim,
Plunkett Kyle N.,
Moore Jeffrey S.
Publication year - 2006
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.200502840
Subject(s) - alkyne , metathesis , catalysis , ring opening metathesis polymerisation , substrate (aquarium) , acyclic diene metathesis , polymerization , molybdenum , chemistry , combinatorial chemistry , materials science , organic chemistry , biology , polymer , ecology
An alkylidyne molybdenum amide complex is attached to nontoxic, amorphous silica to form a highly active, recyclable heterogeneous catalyst for alkyne metathesis. The catalyst does not undergo alkyne polymerization, can be utilized at a loading of <1 mol % at room temperature, and has shown unprecedented metathesis activity for the homodimerization of 2‐propynylthiophene, a substrate that was previously problematic for alkyne metathesis.
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