Efficient and Reusable Metal-Organic Framework Catalysts for Carboxylative Cyclization of Propargylamines with Carbon Dioxide
作者:Dan Zhao、Xiao-Hui Liu、Chendan Zhu、Yan-Shang Kang、Peng Wang、Zhuangzhi Shi、Yi Lu、Wei-Yin Sun
DOI:10.1002/cctc.201701190
日期:2017.12.20
fix it into valuable chemical products, functionalized dynamic metal–organic frameworks (MOFs) have been utilized not only because of their inherent cavity for accommodating CO2 but also owing to their reversible structural transformations in response to external stimuli for regulating the reaction. Herein, we report a dynamic and functional MOF [Cd3(L)2(BDC)3]2⋅16 DMF (MOF‐1 a; DMF=N,N‐dimethylformamide)
二氧化碳(CO 2)的捕获和转化对于降低大气中CO 2的浓度很重要。为了有效地捕获CO 2并将其进一步固定在有价值的化学产品中,功能化的动态金属有机框架(MOF)不仅由于其固有的空腔可容纳CO 2而被利用,而且还由于其响应外部刺激而可逆的结构转变而被利用。用于调节反应。此,我们报告一个动态和功能MOF [CD 3(L)2(BDC)3 ] 2 ⋅ 16 DMF(MOF-1 ; DMF = Ñ,Ñ氨基三脚架咪唑配体N 1-(4-(1 H-咪唑-1-基)苄基)-N 1-(2-氨基乙基)乙烷-1,2-二胺(L)与1,4-苯二甲酸(H 2 BDC)与镉盐。MOF-1a不仅显示出空前的高催化活性[起始周转率(TON)高达9300]和广泛的底物范围,用于炔丙基胺与CO 2的羧基环化,而且由于它的动态五重互穿结构。进一步的研究表明,MOF-1 a 与复杂的生物系统相似,它显示出取决于底物大小的选择性催化特性。