Carbene insertion into N–H bonds with size-selectivity induced by a microporous ruthenium–porphyrin metal–organic framework
作者:Lianfen Chen、Hao Cui、Yanhu Wang、Xiang Liang、Li Zhang、Cheng-Yong Su
DOI:10.1039/c8dt00434j
日期:——
A stable and porous porphyrinic metal–organic framework, Ru-PMOF-1(Hf), has been prepared through the self-assembly of [5,10,15,20-tetrakis(4-carboxyphenyl)porphyrinato](monocarbonyl)ruthenium (Ru(TCPP)(CO)) and HfCl4. Single-crystal X-ray diffraction analysis reveals that Ru-PMOF-1(Hf) possesses a three-dimensional (3D) structure with orthogonal 1D open channels of 1.9 × 1.9 nm2. The porous nature
通过[5,10,15,20-四(4-羧基苯基)卟啉对](单羰基)钌的自组装制备了稳定且多孔的卟啉金属-有机骨架Ru-PMOF- 1(Hf)( Ru(TCPP)(CO))和HfCl 4。X射线单晶衍射分析表明,Ru-PMOF- 1(Hf)具有三维(3D)结构,该结构具有1.9×1.9 nm 2的正交1D开路。多孔性已经通过气体吸附测量得到证实。已经研究了其对卡宾插入NH键的催化活性。催化结果表明Ru-PMOF- 1(Hf)有效地将2-重氮乙酸乙酯(EDA)插入一系列仲胺中,插入率高达92%,938 TON和2475 h -1 TOF。作为优良的多相催化剂,Ru-PMOF- 1(Hf)可以回收并重复使用至少十次,而催化活性的损失可忽略不计。由于其在三个正交方向上均一的微孔,Ru-PMOF- 1(Hf)的粒度可通过筛分进行仔细控制,因此可引起有关胺类底物的尺寸选择性。不同的直链二烷基胺的反应性,例如二乙胺(NHEt