Alkynol-Supported New Cascade Strategy for Eco-Friendly Conversion of CO_(2)into 1,3-Oxazinan-2-ones Catalyzed by Strong-Acid/Base-Resistant Metal-Organic Framework  

作　　者：Xiang-Shuai Li Jian Zhao Sheng-Li Hou Hang Xu Ze-Long Liang Ying Shi Bin Zhao 

机构地区：[1]Frontiers Science Center for New Organic Matter,Key Laboratory of Advanced Energy Materials Chemistry(MOE),College of Chemistry,Nankai University,Tianjin 300071

出　　处：《CCS Chemistry》2024年第12期2982-2995,共14页中国化学会会刊(英文)

基　　金：supported by the National Natural Science Foundation of China(grant nos.92161202,21971125,21625103,22101138,22206088,and 22121005);the China Postdoctoral Science Foundation(grant no.2023M741815).

摘　　要：The conversion of carbon dioxide(CO_(2))into 1,3-oxazinan-2-ones has attracted increasing attention owing to the latter’s potential for curing various diseases.However,current strategies for the conversion have low efficiencies or require harsh conditions or high-cost noble metal catalysts.Herein,a new cascade strategy is proposed that introduces alkynols into the reaction of aminopropanol and CO_(2),realizing a highly efficient and eco-friendly conversion of CO_(2)into 1,3-oxazinan-2-ones catalyzed by a novel three-dimensional copper-organic framework(1).Catalyst 1 possesses strong acid/base resistance that can maintain the framework structure even in a 1 M HCl/NaOH solution,and its high stability allows it to circulate a minimum of five times without any obvious decrease in catalytic activity.Mechanistic exploration reveals that 1 can effectively activate CO_(2)and its substrates,as evidenced by experimental results and computational calculations.Additionally,alkynols play an important role in this strategy because the cyclic carbonates generated from the reaction of alkynols and CO_(2)can largely facilitate the condensation between aminopropanols and CO_(2).

关 键 词：1 3-oxazinan-2-one CO_(2)conversion heterogeneous catalysis metal-organic frameworks three-component reaction 

分 类 号：O64[理学—物理化学]