Synthesis, Post-modification and Catalytic Properties of Metal-organic Framework NH2-MIL-53（Al）
作者机构：School of Chemistry & Chemical Engineering and Environmental Engineering Weifang University Weifang 261061 P. R. China
出 版 物：《Chemical Research in Chinese Universities》 (高等学校化学研究（英文版）)
年 卷 期：2017年第33卷第2期
页 面：231-238页
核心收录：
基 金：Supported by the Promotive Research Fund for Young and Middle-aged Scientists of Shandong Province, China the Project of Shandong Provincical Higher Educational Science and Technology Program, China the Technology Research and Development Program of Weifang, China
主 题：Metal-organic framework Postmodification NH2-MIL-53(AI) Three-component coupling Propargyl-amine
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 ***, 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.
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