Protection of alcohols in the presence of a new nano-sized DABCO-based ionic liquid catalyst containing zinc cation
作者:Pouran Pourayoob Foumani、Maryam Mousapour、Farhad Shirini、Hassan Tajik、Shahed Hassanpoor
DOI:10.1007/s13738-023-02928-1
日期:2024.2
performance of the prepared reagent was studied in the protection of alcohols in two ways using HMDS and DHP to obtain trimethylsilyl (TMS) and tetrahydropyranyl (THP) ethers, respectively. Solvent-free conditions, recoverability of the catalyst, use of low-cost starting materials, proper reaction times, high isolated yields and simple work-up procedure are among the most important features of this catalytic
在目前的研究中,一种纳米路易斯酸性催化剂被命名为1,1ˊ-(butane-1,4-diyl)bis(1,4-diazabicyclo[2.2.2]octan-1-ium)-bis-zinc( II)三氯化物是通过ZnCl 2与[C 4 (DABCO) 2 ].2Cl的简单反应制备的,并通过FT-IR(傅立叶变换红外光谱)、TGA(热重分析)、XRD(X-射线粉末衍射)、SEM(扫描电子显微镜)、ICP-OES(电感耦合等离子体发射光谱仪)和 EDX(能量色散 X 射线)分析。然后,利用HMDS和DHP两种方式研究了所制备的试剂在醇保护中的催化性能,分别得到三甲基硅基(TMS)和四氢吡喃基(THP)醚。无溶剂条件、催化剂的可回收性、低成本原材料的使用、适当的反应时间、高分离产率和简单的后处理程序是该催化方法的最重要特征。