Reaction of π-allylic nickel complexes with quinones and their catalytic activity

Lugll, G.; Marconi, W.; Mazzel, A.; Palladino, N.

doi:10.1016/s0020-1693(00)92467-8

Cited by 9 publications

References 12 publications

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High 1,4‐cis‐polybutadiene by uranium catalysts, 1. Tris(π‐allyl)uranium halide catalysts

1974

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The synthesis of tris(n-al1yl)uranium halides (2a-c) and their behaviour in the stereospecific polymerization of butadiene are reported. Independently from the nature of the halogen bound to uranium, very high 1,4-cis-polymer with a fairly good yield is obtained. The catalytic activity of allyluranium derivatives is very much improved when a Lewis acid is added as a co-catalyst. It is characteristic of the polymer to show a cis-content up to 99 % and an exceptionally high chain regularity at least for long chain sequencies. ZUSAMMENFASSUNG : stereospezifischen Polymerisation des Butadiens werden beschrieben. guten Ausbeuten unabhangig von der Art der Halogen-Uranverbindung erhalten. Cokatalysatoren gesteigert. auf, zumindest fur lange Ketten. Die Darstellung von Tris(n-al1yl)uranhalogeniden (2n-c) und ihre Wirkung bei der Polybutadiene mit sehr hohem 1,4-cis-Gehalt werden mit diesen Uranverbindungen in Die katalytische Wirkung der Allyluranverbindungen wird durch Lewissauren als Das Polymere weist bei hoher Kettenregelmaoigkeit einen 1,4-cis-Gehalt bis zu 99%

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High 1,4‐cis‐polybutadiene by uranium catalysts, 1. Tris(π‐allyl)uranium halide catalysts

1974

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Polymerization by transition metal derivatives. XII. Factors controlling activity and stereospecificity in the 1,4 polymerization of butadiene by monometallic nickel catalysts

Durand

Dawans

Teyssié

1970

J. Polym. Sci. A‐1 Polym. Chem.

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In the course of investigations of polymerization of diolefins by transition metal derivatives, we have synthesized various monometallic nickel coordination catalysts. The complexes were prepared by reacting 2,6,10‐dodecatriene‐1,12‐diyl nickel with protonic acids; they were shown to initiate the stereospecific polymerization of 1,3‐butadiene. The study of these catalysts showed the strong influence of the nature of the counteranion used on the stereospecificity and the polymerization rate. Moreover, by adding various ligands, we were able to modify the behavior of the catalytic systems and to prepare either pure cis‐1,4 or pure trans‐1,4 or cis–trans equibinary polybutadienes, starting from the same complex and keeping a high 1,4 specificity. Some of these modifications were shown to be reversible.

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Investigation of complex formation between ?-RNiCl and zinc and nickel trichloroacetates by vibrational spectroscopy

1980

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Reaction of π-allylic nickel complexes with quinones and their catalytic activity

Cited by 9 publications

References 12 publications

High 1,4‐cis‐polybutadiene by uranium catalysts, 1. Tris(π‐allyl)uranium halide catalysts

High 1,4‐cis‐polybutadiene by uranium catalysts, 1. Tris(π‐allyl)uranium halide catalysts

Polymerization by transition metal derivatives. XII. Factors controlling activity and stereospecificity in the 1,4 polymerization of butadiene by monometallic nickel catalysts

Investigation of complex formation between ?-RNiCl and zinc and nickel trichloroacetates by vibrational spectroscopy

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