Synthesis, Post-modification and Catalytic Properties of Metal-organic Framework NH2-MIL-53（Al）  

作　　者：LIU Lili TAI Xishi ZHOU Xiaojing LIU Lijuan 

机构地区：[1]School of Chemistry & Chemical Engineering and Environmental Engineering, Weifang University, Weifang 261061, P. R. China

出　　处：《Chemical Research in Chinese Universities》2017年第2期231-238,共8页高等学校化学研究（英文版）

摘　　要：A postsynthetic modification method was used to prepare salicylaldehyde functionalized metal-organicframeworks through the nucleophilic addition of salicylaldehyde with the amine group present in the frameworks ofNH2-MIL-53（A1）. Hydroxyl groups were successfully grafted onto NI-I2-MIL-53（A1）, and imine groups were formed.Importantly, these hydroxyl and imine groups of the resulting NH2-MIL-53（A1）-SA can be used as the anchoringgroup to stabilise Au^3＋ ions and Au^0 nanoparticles（NPs）. By doing this, Au^3＋ ions and Au^0 NPs were successfully en-capsulated in the cages of NH2-MIL-53（A1） by a simple impregnation method. The resulting gold functionalizedNH2-MIL-53（AI） showed good catalytic activities in the one-pot synthesis of structurally divergent propargylaminesby three-component coupling reactions of aldehydes, amines and alkynes. Various aromatic/aliphatic aldehydes, aro-matic alkynes, and piperidine were able to undergo three-component coupling on NH2-MIL-53（A1）-Au. In addition,the catalyst NH2-M/L-53（A/）-Au was recovered easily by centrifugation and reused up to four times. Thus, it can beused for the environmentally friendly synthesis ofpropargylamines.

关 键 词：METAL-ORGANIC framework Postmodification NH2-MIL-53(AI) THREE-COMPONENT coupling Propargyl-amine 

分 类 号：O[理学]