Amino Group Functionalized Hf‐Based Metal‐Organic Framework for Knoevenagel‐Doebner Condensation
作者:Aniruddha Das、Nagaraj Anbu、Chiranjib Gogoi、Amarajothi Dhakshinamoorthy、Shyam Biswas
DOI:10.1002/ejic.202100396
日期:2021.9.7
A Hf(IV) metal-organic framework (MOF) with di-amino functionalized linker was obtained as a crystalline solid with UiO-67 topology under solvothermal reaction conditions. The guest free form of Hf(IV) MOF (1′) was efficiently employed as a heterogeneous catalyst to synthesize cinnamic acid derivatives via Knoevenagel-Doebner reaction for the first time. The catalyst (1′) was efficiently active to
在溶剂热反应条件下,获得了具有 UiO-67 拓扑结构的具有二氨基官能化接头的 Hf(IV)金属有机骨架(MOF)作为结晶固体。客体游离形式的 Hf(IV) MOF ( 1' ) 被有效地用作非均相催化剂,首次通过 Knoevenagel-Doebner 反应合成肉桂酸衍生物。催化剂 ( 1' ) 具有高效活性,可直接从苯甲醛和丙二酸制备肉桂酸。固体保持其活性达 6次其活动没有衰减的循环。该催化剂的显着优点是其反应条件温和、产率高、稳定性高、催化可回收性质、底物范围广以及形状选择性行为。还通过合适的对照实验彻底研究了反应的可能机制。