Journal ArticleDOI
Taming early transition metals: the use of polydentate amido-donor ligands to create well defined reactive sites in reagents and catalysts
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TLDR
Early transition metal complexes containing polydentate amido-donor ligands not only display unprecedented patterns of reactivity but are the focus of recent developments in olefin polymerization catalysis as discussed by the authors.About:
This article is published in Chemical Communications.The article was published on 2000-01-01. It has received 157 citations till now. The article focuses on the topics: Denticity & Ligand.read more
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Hydroamination: direct addition of amines to alkenes and alkynes.
TL;DR: Hydroamination of Alkenes and Alkynes under Microwave Irradiation and Nitromercuration Reactions 3878 9.8.4.5.
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Isospecific Living Polymerization of 1-Hexene by a Readily Available Nonmetallocene C2-Symmetrical Zirconium Catalyst
TL;DR: In this article, a nonmetallocene C2symmetrical complex was proposed for the polymerization of 1-hexene, which can be synthesized by a one-pot Mannich condensation between di(secondary) amines, formaldehyde, and substituted phenols.
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Zirconium Complexes of Amine−Bis(phenolate) Ligands as Catalysts for 1-Hexene Polymerization: Peripheral Structural Parameters Strongly Affect Reactivity
TL;DR: In this paper, a family of chelating amine bis(phenolate) zirconium dibenzyl complexes were synthesized in quantitative yields from a versatile family of amine−bis((2-hydroxyaryl)methyl) precursors, their X-ray structures solved, and their reactivity in the polymerization of 1hexene in the presence of B(C6F5)3 studied.
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[ONXO]-Type Amine Bis(phenolate) Zirconium and Hafnium Complexes as Extremely Active 1-Hexene Polymerization Catalysts
TL;DR: In this paper, several [ONXO]-type zirconium and hafnium dibenzyl complexes of amine bisphenolate ligands, where X is a heteroatom donor located on a pendant arm, were synthesized directly from the ligand precursors and corresponding tetrabenzyl metal complexes in quantitative yields.
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Multidentate ligand systems featuring dual functionality
TL;DR: The intrinsic topology of tetradentate ligands may introduce a fascinating reactivity and interesting electronic properties to the metal complexes of ambiphilic ligands.
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Stereospecific Olefin Polymerization with Chiral Metallocene Catalysts
TL;DR: In contrast to heterogeneous Ziegler-Natta catalysts, homogeneous metallocene-based catalysts as discussed by the authors allow efficient control of regio-and stereoregularities, molecular weights and molecular weight distributions, and comonomer incorporation.
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The Search for New-Generation Olefin Polymerization Catalysts: Life beyond Metallocenes.
TL;DR: Even late transition metal complexes function as active and selective catalysts for α-olefin polymerization, and an intense search has developed for new-generation catalysts, in both academic and industrial research laboratories.
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Living polymerization of alpha -olefins by chelating diamide complexes of titanium
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Polymerization of α-olefins by chelating diamide complexes of titanium
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Transformation of Coordinated Dinitrogen by Reaction with Dihydrogen and Primary Silanes
TL;DR: In this article, the reaction of dihydrogen with a side-on bound dinitrogen complex of zirconium was investigated and a complex containing both a bridging hydride and bridging hydrazido unit with a nitrogen-hydrogen bond was observed.