Noncovalent Immobilization of Cationic Ruthenium Complex in a Metal–Organic Framework by Ion Exchange Leading to a Heterogeneous Olefin Metathesis Catalyst for Use in Green Solvents
作者:Artur Chołuj、Paweł Krzesiński、Anna Ruszczyńska、Ewa Bulska、Anna Kajetanowicz、Karol Grela
DOI:10.1021/acs.organomet.9b00287
日期:2019.9.23
A simple strategy for noncovalent immobilization of an olefin metathesis catalyst inside a (Cr)MIL-101-SO3Na metal–organic framework (MOF) was presented. The olefin metathesis active core—an alkylidene complex bearing an ammonium-tagged NHC ligand (Apeiron’s FixCat)—was immobilized by ion exchange facilitated by the use of crown ether. The hybrid material thus obtained was shown with a number of model
提出了一种简单的非共价固定烯烃置换催化剂在(Cr)MIL-101-SO 3 Na金属-有机骨架(MOF)中的策略。烯烃复分解活性核心-带有铵标记的NHC配体的亚烷基络合物(Apeiron's FixCat)-通过冠醚的使用促进了离子交换的固定。如此获得的杂化材料与多种模型底物一起显示出在宽范围的溶剂中显示出高活性和选择性。接下来,在极性溶剂(如丙酮和碳酸二甲酯)中,使用0.8-0.5 mol%的[受电子邮件保护]转化选定的多官能团药学相关底物,从而在绿色溶剂利用的背景下使该技术变得有趣。