The Lanthanide Ziegler-Natta Model: Aluminum-Mediated Chain Transfer
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- 作者：Michael G. Klimpel ; Jö ; rg Eppinger ; Peter Sirsch ; Wolfgang Scherer ; and Reiner Anwander
- 刊名：Organometallics
- 出版年：2002
- 出版时间：September 30, 2002
- 年：2002
- 卷：21
- 期：20
- 页码：4021 - 4023
- 全文大小：96K
- 年卷期：v.21,no.20(September 30, 2002)
- ISSN：1520-6041
文摘
C2-symmetric tetraalkylaluminate complexesrac-[Me2Si(2-Me-C9H5)2]Y(
-R)2AlR2 and terminal alkylcomplexes rac-[Me2Si(2-Me-C9H5)2]YR(THF) (R = Me,Et, iBu) are quantitatively formed via a special silylamide elimination reaction. The "reversibility" of tetraalkylaluminate coordination gives access to the first mixed-alkyl lanthanidocene complexes, which can be discussedas models for polymer chain transfer in organoaluminum-dependent Ziegler-Natta catalysts.
-R)2AlR2 and terminal alkylcomplexes rac-[Me2Si(2-Me-C9H5)2]YR(THF) (R = Me,Et, iBu) are quantitatively formed via a special silylamide elimination reaction. The "reversibility" of tetraalkylaluminate coordination gives access to the first mixed-alkyl lanthanidocene complexes, which can be discussedas models for polymer chain transfer in organoaluminum-dependent Ziegler-Natta catalysts.