Synthesis and Oxidative Desulfurization of PV-Functionalized Imidazole-2-thiones: Easy Access to P-Functional Ionic Liquids
作者:Paresh Kumar Majhi、Gregor Schnakenburg、Anthony J. Arduengo、Rainer Streubel
DOI:10.1071/ch14726
日期:——
the first examples of room temperature imidazolium ionic liquids 8d, 9a,d, and 10b,c respectively, possessing backbone P-substituents. To study the effect of the counter anion on the physical properties, imidazolium salts with counter anions such as Cl–, BF4–, PF6–, Tf2N–, and TfO– have been prepared by exchanging the counter anion of the obtained imidazolium hydrogen sulfates 8a,d and 14b with appropriate
使用主链锂化和膦酰基化反应方案实现了4-膦酰基化的咪唑-2-硫酮2d,3a,b(b'),c(c'),d的选择性合成。4 phosphanylated咪唑-2-硫酮3B(b')中,C(C')进行一氧化/ phosphanylation /氧化反应序列中访问C 4/5 -双(phosphanoyl) -取代的咪唑-2-硫酮7b,c。膦酰化咪唑-2-硫酮2d,4a,d和7b,c的氧化脱硫用过氧化氢处理得到的咪唑鎓离子液体的第一个例子分别是具有骨架P-取代基的室温咪唑鎓离子液体8d,9a,d和10b,c。为了研究其物理性质的反阴离子的效果,咪唑鎓盐与抗衡阴离子如Cl -,BF 4 -,PF 6 -,TF 2 Ñ - ,和TFO -已经制备通过交换所得到的反阴离子咪唑硫酸氢盐8a,d和14b与适当的碱金属或碱土金属盐。在5a的情况下,所有目标产品均通过各种光谱学和光谱学方法以及单晶X射线结构研究进行了表征。