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UMCM-1-NH2的后合成修饰及在催化制备β-氨基醇和环碳酸酯反应中的应用

The Post-synthetic Modification of UMCM-1-NH2 and Its Application for Preparing β-amino Alcohols and Cyclic Carbonates

【作者】 刘鸿

【导师】 张宁; 陈超;

【作者基本信息】 南昌大学 , 工业催化, 2017, 硕士

【摘要】 金属-有机骨架化合物(Metal-Organic Frameworks,简称MOFs)是指金属离子与有机配体通过自组装过程形成具有周期性网络结构的金属-有机骨架材料。比表面积大,孔径大小可调等特点使得MOFs在分子传感,荧光等领域应用广泛。随着MOFs的后合成修饰技术(Post-synthetic modification,简称PSM)的产生,大大的拓展了金属-有机骨架材料的应用范围。本文研究内容是通过后合成修饰的方法将席夫碱引入到MOFs孔道中,再螯合金属离子应用于催化有机胺和环氧化合物的开环反应。第一章为文献综述,叙述MOFs的概念、特点,催化合成β-氨基醇的意义,重点阐述MOFs的后合成修饰方法及其在催化领域的应用,最后阐明了本论文的研究内容及意义。第二章构建UMCM-1-NH2/n-Bu4NBr协同催化体系,将该体系应用于催化CO2和环氧丙烷的偶联反应合成环碳酸酯中,在较温和的条件下即能催化该反应,且具有较好的催化效果,并具有很好的循环使用性能。第三章采用后合成修饰(Post-synthetic modification,PSM)技术将水杨醛锚装到UMCM-1-NH2上,得到席夫碱功能化的UMCM-1-NH-Sal,在该化合物孔道内的席夫碱N、O原子上螯合铜离子得到UMCM-1-NH-Sal-Cu催化剂,并应用核磁共振氢谱(1HNMR)、X射线衍射(PXRD)、热重分析(TGA)、N2吸附-脱附(BET)等手段对催化剂进行了表征,将其用于催化有机胺和环氧化物的开环反应制备β-氨基醇,结果表明该催化剂具有良好的催化效果。

【Abstract】 Metal-organic frameworks(Metal-Organic Frameworks,referred to as MOFs)refers to metal ions and organic ligands through the self-assembly process to form a periodic network structure of the metal-organic skeleton materials.Large surface area,aperture size adjustable MOFs caused by molecular sensing,fluorescence and other fields widely used.With the MOFs post-synthetic modification theory(Post-synthetic modification,referred to as PSM)generation,greatly expanded the metal-organic skeleton material applications.In this paper,we introduce the Schiff base into the MOFs through the post-synthetic modification method,and then chelate the metal ions to catalyze the ring-opening reaction of the organic amine and the epoxy compound.The first chapter is the literature review,the concept and characterization of MOFs,the significance of catalyzing the synthesis of β-amino alcohols,the elaboration of MOFs post-synthetic modification method and its application in the field of catalysis,and finally clarified the research content and significance of this paper.In the second chapter,the UMCM-1-NH2/n-Bu4NBr synergetic system was constructed.The system was applied to catalyze the coupling reaction of CO2 with propylene oxide to form cyclic carbonate,which catalyzed the reaction under mild conditions and showed a good catalytic effect with a good recycling performance.In the third chapter,salicylaldehyde was anchored to UMCM-1-NH2 by post-synthetic modification(PSM)technology to obtain the porous metal-organic skeleton compound UMCM-1-NH-Sal.The catalyst of UMCM-1-NH-Sal-Cu was obtained by chelating the copper ions on the Schiff base N,O atoms in the pore of the compound.The catalysts were characterized by 1HNMR,XRD,TG and N2 adsorption.The preparation of β-amino alcohols use the catalysts by ring-opening reaction of organic amine and epoxide was carried out.The results showed that the catalyst had good catalytic effect.

  • 【网络出版投稿人】 南昌大学
  • 【网络出版年期】2018年 02期
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