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.

引用

页码：1884 / 1888

页数：5

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