Iron(II) complexes bearing tridentate PNP pincer-type ligands as catalysts for the selective formation of 3-hydroxyacrylates from aromatic aldehydes and ethyldiazoacetate

被引:85
作者
Benito-Garagorri, David
Wiedermann, Julia
Pollak, Martin
Mereiter, Kurt
Kirchner, Karl
机构
[1] Vienna Univ Technol, Inst Appl Synth Chem, A-1060 Vienna, Austria
[2] Vienna Univ Technol, Inst Chem Technol & Analyt, A-1060 Vienna, Austria
关键词
D O I
10.1021/om060802o
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Several new iron(II) complexes of the types [Fe(PNP)(CO)(CH3CN)(2)](2+), [Fe(PNP)(CO)(2)Br](+), and Fe(PNP)Cl-2 containing tridentate PNP pincer-type ligands have been prepared and characterized. Some of them turned out to be efficient catalysts for the coupling of aromatic aldehydes with ethyldiazoacetate (EDA) to give 3-hydroxyacrylates. These reactions are highly chemoselective, proceed under mild conditions, exhibit good scope, and circumvent the need of slow addition of EDA at low temperature.
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页码:217 / 222
页数:6
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