[go: up one dir, main page]

Chen et al., 1998 - Google Patents

Sterically encumbered (perfluoroaryl) borane and aluminate cocatalysts for tuning cation− anion ion pair structure and reactivity in metallocene polymerization …

Chen et al., 1998

Document ID
11773403109201058650
Author
Chen Y
Metz M
Li L
Stern C
Marks T
Publication year
Publication venue
Journal of the American Chemical Society

External Links

Snippet

The synthesis and dialkyl abstraction chemistry as well as the unusual cocatalytic characteristics in metallocene-mediated polymerization of two distinctive borane and aluminate cocatalysts tris (2, 2 ', 2 ''-nonafluorobiphenyl) borane (PBB) and triphenyl …
Continue reading at pubs.acs.org (other versions)

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F4/00Polymerisation catalysts
    • C08F4/42Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors
    • C08F4/44Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides
    • C08F4/60Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides together with refractory metals, iron group metals, platinum group metals, manganese, rhenium technetium or compounds thereof
    • C08F4/62Refractory metals or compounds thereof
    • C08F4/64Titanium, zirconium, hafnium or compounds thereof
    • C08F4/659Component covered by group C08F4/64 containing a transition metal-carbon bond
    • C08F4/65912Component covered by group C08F4/64 containing a transition metal-carbon bond in combination with an organoaluminium compound
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F4/00Polymerisation catalysts
    • C08F4/42Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors
    • C08F4/44Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides
    • C08F4/60Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides together with refractory metals, iron group metals, platinum group metals, manganese, rhenium technetium or compounds thereof
    • C08F4/62Refractory metals or compounds thereof
    • C08F4/64Titanium, zirconium, hafnium or compounds thereof
    • C08F4/659Component covered by group C08F4/64 containing a transition metal-carbon bond
    • C08F4/6592Component covered by group C08F4/64 containing a transition metal-carbon bond containing at least one cyclopentadienyl ring, condensed or not, e.g. an indenyl or a fluorenyl ring
    • C08F4/65922Component covered by group C08F4/64 containing a transition metal-carbon bond containing at least one cyclopentadienyl ring, condensed or not, e.g. an indenyl or a fluorenyl ring containing at least two cyclopentadienyl rings, fused or not
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F4/00Polymerisation catalysts
    • C08F4/42Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors
    • C08F4/44Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides
    • C08F4/60Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides together with refractory metals, iron group metals, platinum group metals, manganese, rhenium technetium or compounds thereof
    • C08F4/62Refractory metals or compounds thereof
    • C08F4/64Titanium, zirconium, hafnium or compounds thereof
    • C08F4/659Component covered by group C08F4/64 containing a transition metal-carbon bond
    • C08F4/65916Component covered by group C08F4/64 containing a transition metal-carbon bond supported on a carrier, e.g. silica, MgCl2, polymer
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F10/00Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07FACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F17/00Metallocenes
    • C07F17/02Metallocenes of metals of Groups 8, 9 or 10 of the Periodic System
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07FACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F5/00Compounds containing elements of Groups 3 or 13 of the Periodic System

Similar Documents

Publication Publication Date Title
Chen et al. Sterically encumbered (perfluoroaryl) borane and aluminate cocatalysts for tuning cation− anion ion pair structure and reactivity in metallocene polymerization processes. A synthetic, structural, and polymerization study
Chen et al. “Constrained geometry” dialkyl catalysts. Efficient syntheses, C− H bond activation chemistry, monomer− dimer equilibration, and α-olefin polymerization catalysis
Shah et al. Group 4 metal amido fluorides and chlorides: molecular structures and the first comparison in ethylene polymerization catalysis
Bei et al. Synthesis, structures, bonding, and ethylene reactivity of group 4 metal alkyl complexes incorporating 8-quinolinolato ligands
Li et al. New organo-lewis acids. tris (β-perfluoronaphthyl) borane (PNB) as a highly active cocatalyst for metallocene-mediated Ziegler− Natta α-olefin polymerization
Scollard et al. Bulky chelating diamide complexes of zirconium: synthesis, structure, and reactivity of d0 alkyl derivatives
Chen et al. Cocatalysts for metal-catalyzed olefin polymerization: activators, activation processes, and structure− activity relationships
Köhler et al. Bifunctional Lewis Acids. Synthesis and Olefin Polymerization Chemistry of the 1, 1-Di [bis (perfluorophenyl) boryl] alkenes RCH C [B (C6F5) 2] 2 (R= t-Bu, C6H5, C6F5)
Zhang et al. The mechanism of methane elimination in B (C6F5) 3-initiated monocyclopentadienyl-ketimide titanium and related olefin polymerization catalysts
Chen et al. Very large counteranion modulation of cationic metallocene polymerization activity and stereoregulation by a sterically congested (perfluoroaryl) fluoroaluminate
Li et al. Aluminum effects in the syndiospecific copolymerization of styrene with ethylene by cationic fluorenyl scandium alkyl catalysts
Chan et al. Density functional study on activation and ion-pair formation in group IV metallocene and related olefin polymerization catalysts
Scollard et al. Living polymerization of α-olefins: catalyst precursor deactivation via the unexpected cleavage of a B− C6F5 bond
Warren et al. Neutral and Cationic Group 4 Complexes Containing Bis (borylamide) Ligands,[R2BNCH2CH2NBR2] 2-(R= 2, 4, 6-i-Pr3C6H2, M= Zr; R= Cyclohexyl, M= Ti, Zr, Hf)
Diamond et al. Efficient Synthesis of Chiral ansa-Metallocenes by Amine Elimination. Synthesis, Structure, and Reactivity of rac-(EBI) Zr (NMe2) 2
Volkis et al. Group 4 octahedral benzamidinate complexes: Syntheses, structures, and catalytic activities in the polymerization of propylene modulated by pressure
Mitchell et al. Preparation and Structural Characterization of an Enantiomerically Pure, C 2-Symmetric, Single-Component Ziegler− Natta α-Olefin Polymerization Catalyst
Schaper et al. Displacement of H3CB (C6F5) 3-Anions from Zirconocene Methyl Cations by Neutral Ligand Molecules: Equilibria, Kinetics, and Mechanisms
Dahlmann et al. Direct experimental observation of the stereochemistry of the first propene insertion step at an active homogeneous single-component metallocene ziegler catalyst
Nomura et al. Synthesis of Half-Titanocenes Containing Anionic N-Heterocyclic Carbenes That Contain a Weakly Coordinating Borate Moiety, Cp′ TiX2 (WCA-NHC), and Their Use as Catalysts for Ethylene (Co) polymerization
Walker et al. Synthesis, structures, and ring-opening polymerization reactions of substituted cyclopentadienyl complexes of zinc
Wang et al. Synthesis, structural characterization, and catalytic properties of group 4 metal complexes incorporating a phosphorus-bridged indenyl-carboranyl constrained-geometry ligand
Flores et al. [1-(2-phenylethyl)-2, 3, 4, 5-tetramethylcyclopentadienyl]-titanium compounds. Synthesis and their use for the syndiospecific polymerization of styrene
Roberts et al. Diverse Stereocontrol Effects Induced by Weakly Coordinating Anions. Stereospecific Olefin Polymerization Pathways at Archetypal C s-and C 1-Symmetric Metallocenium Catalysts Using Mono-and Polynuclear Halo-perfluoroarylmetalates as Cocatalysts
Baar et al. Kinetic resolution of chiral α-olefins using optically active ansa-zirconocene polymerization catalysts