BULKY ARYLOXO COMPLEXES OF TUNGSTEN AND NIOBIUM AS CATALYST PRECURSORS FOR HIGH POLYMERIZATION OF ALK-1-YNES

Mixtures of reducing reagents and 2,6-dimethylphenoxo-tungsten(VI) or -niobium(V) complexes are catalyst precursors for the polymerizations of alk-1-ynes; the number of aryloxo ligands on the metal has been found to control the activity of the polymerization of monoalkylsubstituted acetylenes result...

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Bibliographic Details
Published inJournal of the Chemical Society. Chemical communications no. 20; pp. 1496 - 1498
Main Authors NAKAYAMA, Y, MASHIMA, K, NAKAMURA, A
Format Journal Article
LanguageEnglish
Published CAMBRIDGE Royal Soc Chemistry 1992
Royal Society of Chemistry
Subjects
Catalysis
Catalysts: preparations and properties
Chemistry
Chemistry, Multidisciplinary
Exact sciences and technology
General and physical chemistry
Physical Sciences
Science & Technology
Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry
PHENYLACETYLENE
CYCLOTRIMERIZATION
ACETYLENE
TANTALUM
METATHESIS
Acetylenic compound
Tungsten VI Complexes
Organic ligand
Polymerization
Niobium V Complexes
Transition metal Complexes
Catalyst
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Summary:Mixtures of reducing reagents and 2,6-dimethylphenoxo-tungsten(VI) or -niobium(V) complexes are catalyst precursors for the polymerizations of alk-1-ynes; the number of aryloxo ligands on the metal has been found to control the activity of the polymerization of monoalkylsubstituted acetylenes resulting in the formation of high molecular mass polymers.
ISSN:0022-4936
DOI:10.1039/c39920001496