期刊
ADVANCED FUNCTIONAL MATERIALS
卷 19, 期 13, 页码 2109-2115出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adfm.200801861
关键词
-
类别
资金
- international Doktorandenkolleg NANOCAT (Elitenetzwerk Bayern)
- Fonds der Chernischen Industrie
- ETH Zbrich
Two different types of azide functionalized magnetite@silica nanoparticles are synthesized, which are ideally suited as inexpensive supports for catalysts and reagents as demonstrated with the grafting of copper(II)azabis(oxazoline) complexes via a copper(I) catalyzed azide/alkyne cycloaddition (CuAAC) reaction. The potential of the immobilized complexes as catalysts is tested in the desymmetrization of racemic 1,2-diols through asymmetric benzoylation. Compared to azabis(oxazolines) clicked to common polymeric supports such as MeOPEG or Merrifield resin, Fe3O4@SiO2 proves to be superior with respect to activity and selectivity, as exemplified by employing the catalysts in up to five runs with consistent high activity and selectivity. Recycling of the catalysts is achieved quantitatively by magnetic decantation.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据