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SAPO-34分子筛载铜催化剂催化Ullmann反应
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摘要
通过水热合成法,改变不同硅铝比得到结晶度较好的SAPO-34分子筛。通过离子交换法和高压加氢的方法制得Cu-SAPO-34催化剂,并对催化剂进行了XRD和TPR等表征,由表征结果可知负载的铜全部被转化为Cu~0。将得到的Cu-SAPO-34催化剂应用于无配体情况下的沃尔曼偶联反应中,其结果显示出Cu-SAPO-34在C-O键和C-N键的形成上展现了较高的催化活性。
SAPO-34 zeolite was synthesized by hydrothermal method. Then the Cu-SAPO-34 catalyst was synthesized by ion exchange and high-pressure hydrogenation method. The Cu-SAPO-34 catalyst are also characterized by scanning electron microscope(SEM) and TPR. The characterization results showed that all the Cu~(2+) converted to Cu~0.Finally the catalyst was used for Ullmann-type couplings under ligand-free conditions. The catalyst exhibited high catalytic activity in C–O and C–N bond formation couplings.
引文
[1]Senra,J.D.,Aguiar,L.C.S.&Simas,A.B.C.Curr.Org.Synth.2011,8,53–78.
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    [3]Hongqiang L,Chunping L,*Jie B,Chenglin Z and Weiyan S,RSC Adv.,2014,4,48362.
    [4]Jinlong G,Hairong Y,Yujun Z,Shuo Z,Li Z,Jing L,Shengping W,and Xinbin M,J.Am.Chem.Soc.2012,134,13922-13925

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