Superparamagnetic Copper Ferrite Nanoparticles as an Efficient Heterogeneous Catalyst for the α-Arylation of 1,3-Diketones with CC Cleavage
作者:Anh T. Nguyen、Lan T. M. Nguyen、Chung K. Nguyen、Thanh Truong、Nam T. S. Phan
DOI:10.1002/cctc.201300708
日期:2014.3
Superparamagnetic CuFe2O4 nanoparticles were synthesized from CuCl2 and FeCl3 by a co‐precipitation method in ethylene glycol and characterized by several techniques, which included vibrating sample magnetometry, XRD, SEM, TEM, atomic absorption spectrometry, and nitrogen physisorption measurements. The CuFe2O4 nanoparticles could be used as a solid catalyst for the α‐arylation reaction of acetylacetone
在乙二醇中通过共沉淀法由CuCl 2和FeCl 3合成了超顺磁性CuFe 2 O 4纳米颗粒,并通过多种技术对其进行了表征,这些技术包括振动样品磁法,XRD,SEM,TEM,原子吸收光谱和氮物理吸附测量。CuFe 2 O 4纳米颗粒可以用作乙酰丙酮与碘苯的α-芳基化反应的固体催化剂,以形成主要产物苯丙酮和副产物3-苯基-2,4-戊二酮。使用CuFe 2 O 4的反应作为催化剂的纳米颗粒可以以对苯丙酮的95%的选择性进行反应。CuFe 2 O 4纳米颗粒可以通过磁倾析法很容易地从反应混合物中分离出来,并且可以多次重复用于α-芳基化反应,而不会显着降低催化活性。