Solubilized lanthanide triflates:: Lewis acid catalysis by polyether and poly(ethylene glycol) complexes of Ln(OTf)3

被引：58
作者：
Aspinall, HC [1 ]
Dwyer, JLM
Greeves, N
McIver, EG
Woolley, JC
机构：
[1] Univ Liverpool, Dept Chem, Liverpool L69 7ZD, Merseyside, England
[2] Univ Liverpool, Donnan Labs, Liverpool L69 7ZD, Merseyside, England
[3] Univ Liverpool, Robert Robinson Labs, Liverpool L69 7ZD, Merseyside, England
来源：
ORGANOMETALLICS | 1998年 / 17卷 / 09期
关键词：
D O I：
10.1021/om9709087
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Complexes of lanthanide triflates Ln(OTf)(3) with polyether (MeO(CH2CH2O)(n)Me) and poly(ethylene glycol) (HO(CH2CH2O)(n)H) Ligands (n = 2-4) have been prepared and characterized, and the activity of these complexes as Lewis acid catalysts has been investigated. The complexes [Ln(OTf)(3)(HO(CH2CH2O)(n)H)] have been shown to catalyze the allylation of a range of aldehydes with allyltributylstannane, and the complexes [Ln(OTf)(3)(MeO(CH2CH2O)(n)Me)] catalyze the Diels-Alder addition of N-crotonyloxazolidinone to cyclopentadiene. The single-crystal X-ray structures of [Dy(OTf)(2)(H2O)(2)(MeO(CH2CH2O)(4)Me)][OTf] and [La(OTf)(3)(THF)(HO(CH2CH2O)(4)H)] are reported.
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页码：1884 / 1888
页数：5
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