Porous and Robust Lanthanide Metal-Organoboron Frameworks as Water Tolerant Lewis Acid Catalysts
作者:Yan Liu、Ke Mo、Yong Cui
DOI:10.1021/ic400598x
日期:2013.9.16
number of isolated Lewis acid B(III) and Ln(III) sites on the pore surfaces. The Nd-MOF assisted with sodium dodecylsulfate was found to be highly effective, recyclable, and reusable heterogeneous catalyst for the carbonyl allylation reaction, the Diels–Alder reaction, and the Strecker-type reaction in water. The transformations were cocatalyzed by Nd(III) and B(III) Lewis acids, with activities much
多孔且坚固的12连接金属-有机骨架(MOF)是通过将四核镧系(Ln)碳酸酯簇与有机硼衍生的三羧酸酯桥联配体连接而构建的。高连接性的Ln-MOF具有出色的热稳定性和水解稳定性,并且在孔表面具有大量的孤立的路易斯酸B(III)和Ln(III)位。发现Nd-MOF辅以十二烷基硫酸钠可用于水中的羰基烯丙基化反应,Diels-Alder反应和Strecker型反应,是高效,可回收和可重复使用的非均相催化剂。Nd(III)和B(III)Lewis酸可共同催化转化,其活性远高于有机硼和镧系元素对应物及其混合物的活性。