Synthesis of a novel bifunctional oxyammonium‐based ionic liquid: Application for the synthesis of pyrano[4,3‐<i>b</i>]pyrans and tetrahydrobenzo[<i>b</i>]pyrans
作者:Azra Zarei、Meysam Yarie、Mohammad Ali Zolfigol、Khodabakhsh Niknam
DOI:10.1002/jccs.201800468
日期:2020.6
In the present investigation, a novel bifunctional oxyammonium‐based ionic liquid, namely, 2,2′‐(ethane‐1,2‐diylbis[oxy])bis(ethan‐1‐aminium)‐2,2,2‐trifluoroacetate, was designed and synthesized. The structure of the titled ionic liquid was characterized using Fourier‐transform infrared spectroscopy (FT‐IR), proton nuclear magnetic resonance (1HNMR), carbon nuclear magnetic resonance (13CNMR), fluorine
在本研究中,一种新型的基于双官能氧铵的离子液体,即2,2'-(乙烷-1,2-二基双[氧基])双(乙烷-1-铵)-2,2,2-三氟乙酸盐,被设计和合成。使用傅立叶变换红外光谱(FT-IR),质子核磁共振(1 HNMR),碳核磁共振(13 CNMR),氟核磁共振(19FNMR),同核COZY核磁共振(NMR),热重分析(TG),微分热重分析(DTG)分析,X射线衍射图(XRD),扫描电子显微镜(SEM)和透射电子显微镜(TEM)。所述离子液体在吡喃并[4,3-b]吡喃和四氢苯并[b]吡喃衍生物的合成中表现出强大的催化性能。在两种模型反应中,离子液体都具有很高的回收和再利用能力。