Pentamethylcyclopentadienyl Titanium(IV) Amido Pyridylene Phenylene and Pentamethylcyclopentadienyl Titanacyclopropane Amido Complexes and their Behavior in the Polymerization of Ethylene and Cyclic Olefins
Pentamethylcyclopentadienyl Titanium(IV) Amido Pyridylene Phenylene and Pentamethylcyclopentadienyl Titanacyclopropane Amido Complexes and their Behavior in the Polymerization of Ethylene and Cyclic Olefins
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五甲基环戊二烯基钛(IV)氨基吡啶亚苯基和五甲基环戊二烯基钛环丙烷氨基配合物及其在乙烯和环烯烃聚合中的行为
DOI:
10.1002/cctc.201601495
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发表时间:
--
期刊:
影响因子:
4.5
通讯作者:
Buchmeiser
中科院分区:
文献类型:
--
作者:
van der Ende;Buchmeiser
The reaction of pentamethylcyclopentadienyl titanium trichloride (Cp*TiCl3) with lithiumN,N‐bis{6‐[2‐(diethylboryl)phenyl]pyridyl‐2‐yl}amide resulted in the formation of chlorido[η3‐N‐{6‐[2‐(diethylboryl)phenyl]pyridyl‐2‐yl}‐N‐(6‐C6H4)pyrid‐2‐yl)amido]pentamethylcyclopentadienyltitanium (Ti‐1). The structure ofTi‐1was elucidated by using single‐crystal XRD. The same compound is formed upon the reaction of Cp*TiCl3with lithiumN‐{6‐[2‐(diethylboryl)phenyl]pyridyl‐2‐yl}‐N’‐[6‐(2‐bromophenyl)pyridyl‐2‐yl]amide. The reaction ofN,N‐bis[6‐(2‐bromophen‐1‐yl)pyrid‐2‐yl]amine (4) with lithium hexamethyldisilazide followed by the addition of Cp*TiCl3leads to the formation of [N,N‐bis{6‐(2‐bromophen‐1‐yl)pyrid‐2‐yl}amide]dichloridopentamethylcyclopentadienyltitanium (Ti‐2). The reaction ofTi‐1with benzylmagnesium chloride yields the pentamethylcyclopentadienyl titanium vinyl complex pentamethylcyclopentadienyl{N‐(6‐phenylpyridyl‐2‐yl)‐N‐[6‐(2‐ethyl‐η2‐vinylboryl‐C6H4)pyrid‐2‐yl]amido}titanium (Ti‐3) by C−H activation;Ti‐3is best described as a monosubstituted titanacyclopropane. Upon activation with methylaluminoxane (MAO),Ti‐1produces linear, high‐density polyethylene with molecular weights >6×106g mol−1, whereasTi‐2yielded ethyl‐branched polyethylene. BothTi‐1andTi‐2are able to copolymerize ethylene (E) with norborn‐2‐ene (NBE) and E with cyclopentene (CPE) and to terpolymerize E with NBE and CPE.Ti‐1activated by MAO is also active in the ring‐opening metathesis polymerization of NBE to produce up to 97 %cis‐syndiotactic poly(NBE). The polymer structure of all resulting homo‐ and copolymers was elucidated by using13C NMR spectroscopy.
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影响因子:
5.5
作者:
Ciftci, Mustafa;Batat, Pinar;Yagci, Yusuf
通讯作者:
Yagci, Yusuf
影响因子:
2.5
作者:
K. Herz;D. A. Imbrich;J. Unold;M. Speiser;M. R. Buchmeiser
通讯作者:
M. R. Buchmeiser
影响因子:
3.4
作者:
G. V. Narayana;G. Xu. D. Wang;W. Frey;M. R. Buchmeiser
通讯作者:
M. R. Buchmeiser
DOI:
--
发表时间:
1995
期刊:
影响因子:
--
作者:
Harry van der Heijden;B. Hessen
通讯作者:
B. Hessen
影响因子:
4.6
作者:
Buchmeiser
通讯作者:
Buchmeiser