Cationic d0/f0 Metallocene Catalysts. Properties of Binuclear Organoborane Lewis Acid Cocatalysts and Weakly Coordinating Counteranions Derived Therefrom

Jia Li Jia; Xinmin Yang; Charlotte Stern; Tobin Jay Marks

doi:10.1021/om00022a003

Cationic d⁰/f⁰ Metallocene Catalysts. Properties of Binuclear Organoborane Lewis Acid Cocatalysts and Weakly Coordinating Counteranions Derived Therefrom

Jia Li Jia, Xinmin Yang, Charlotte Stern, Tobin Jay Marks^*

^*Corresponding author for this work

Chemistry

Research output: Contribution to journal › Article › peer-review

120 Scopus citations

Abstract

Reaction of ^tBuCH₂CH(BCl₂)2 with LiC₆F₅ yields the binuclear organo-Lewis acid ^tBuCH₂CH- [B(C₆F₅)₂]₂, which can be converted with KEt₃BH, followed by metathesis, into the salt [HNⁿBu₃]+{^tBuCH₂- CH[B(C₆F₅)₂]₂H}^-. Reaction of this salt with Cp′₂Th- (CH₃)₂ (Cp′ = η-Me₅C₅) yields the cationic metallocene complex Cp′₂ThCH₃⁺{^tBuCH₂CH[B(C₆F₅)₂]₂H}^-(5), which is a highly active catalyst for ethylene polymerization and 1-hexene hydrogenation. The THF adduct, Cp′₂Th- (CH₃)THF⁺{^tBuCH₂CH[B(C₆F₅)₂]₂H}^-, has been characterized by X-ray diffraction.

Original language	English (US)
Pages (from-to)	3755-3757
Number of pages	3
Journal	Organometallics
Volume	13
Issue number	10
DOIs	https://doi.org/10.1021/om00022a003
State	Published - Oct 1 1994

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Physical and Theoretical Chemistry
Organic Chemistry
Inorganic Chemistry

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@article{18100bdf808d49b59453990e4576a703,

title = "Cationic d0/f0 Metallocene Catalysts. Properties of Binuclear Organoborane Lewis Acid Cocatalysts and Weakly Coordinating Counteranions Derived Therefrom",

abstract = "Reaction of tBuCH2CH(BCl2)2 with LiC6F5 yields the binuclear organo-Lewis acid tBuCH2CH- [B(C6F5)2]2, which can be converted with KEt3BH, followed by metathesis, into the salt [HNnBu3]+{tBuCH2- CH[B(C6F5)2]2H}-. Reaction of this salt with Cp′2Th- (CH3)2 (Cp′ = η-Me5C5) yields the cationic metallocene complex Cp′2ThCH3+{tBuCH2CH[B(C6F5)2]2H}-(5), which is a highly active catalyst for ethylene polymerization and 1-hexene hydrogenation. The THF adduct, Cp′2Th- (CH3)THF+{tBuCH2CH[B(C6F5)2]2H}-, has been characterized by X-ray diffraction.",

author = "{Li Jia}, Jia and Xinmin Yang and Charlotte Stern and Marks, {Tobin Jay}",

year = "1994",

month = oct,

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doi = "10.1021/om00022a003",

language = "English (US)",

volume = "13",

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journal = "Organometallics",

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publisher = "American Chemical Society",

number = "10",

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T1 - Cationic d0/f0 Metallocene Catalysts. Properties of Binuclear Organoborane Lewis Acid Cocatalysts and Weakly Coordinating Counteranions Derived Therefrom

AU - Li Jia, Jia

AU - Yang, Xinmin

AU - Stern, Charlotte

AU - Marks, Tobin Jay

PY - 1994/10/1

Y1 - 1994/10/1

N2 - Reaction of tBuCH2CH(BCl2)2 with LiC6F5 yields the binuclear organo-Lewis acid tBuCH2CH- [B(C6F5)2]2, which can be converted with KEt3BH, followed by metathesis, into the salt [HNnBu3]+{tBuCH2- CH[B(C6F5)2]2H}-. Reaction of this salt with Cp′2Th- (CH3)2 (Cp′ = η-Me5C5) yields the cationic metallocene complex Cp′2ThCH3+{tBuCH2CH[B(C6F5)2]2H}-(5), which is a highly active catalyst for ethylene polymerization and 1-hexene hydrogenation. The THF adduct, Cp′2Th- (CH3)THF+{tBuCH2CH[B(C6F5)2]2H}-, has been characterized by X-ray diffraction.

AB - Reaction of tBuCH2CH(BCl2)2 with LiC6F5 yields the binuclear organo-Lewis acid tBuCH2CH- [B(C6F5)2]2, which can be converted with KEt3BH, followed by metathesis, into the salt [HNnBu3]+{tBuCH2- CH[B(C6F5)2]2H}-. Reaction of this salt with Cp′2Th- (CH3)2 (Cp′ = η-Me5C5) yields the cationic metallocene complex Cp′2ThCH3+{tBuCH2CH[B(C6F5)2]2H}-(5), which is a highly active catalyst for ethylene polymerization and 1-hexene hydrogenation. The THF adduct, Cp′2Th- (CH3)THF+{tBuCH2CH[B(C6F5)2]2H}-, has been characterized by X-ray diffraction.

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Cationic d⁰/f⁰ Metallocene Catalysts. Properties of Binuclear Organoborane Lewis Acid Cocatalysts and Weakly Coordinating Counteranions Derived Therefrom

Abstract

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