Selective adsorption of trace morpholine impurities over<i>N</i>-ethyl morpholine by tetralactam solids
Shi-Yao Li, Huan Yao, Hao Hu, Wen‐Jie Chen, Liu‐Pan Yang, Lili Wang
Abstract
-ethyl morpholine (NEM) is of great significance in the fine chemical industry. Herein, we offer a novel strategy for the selective adsorption of MOR over NEM by tetralactam solids. The adsorbent realized the purification of NEM by adsorbing traces of MOR impurities, such that the purity can be improved from around 98% to over 99.5%. Single crystal structures indicate that N-H⋯O and N-H⋯N hydrogen bonding interactions are essential in the selective separation.
Topics & Concepts
MorpholineAdsorptionImpurityTRACE (psycholinguistics)ChemistryOrganic chemistryInorganic chemistryNuclear chemistryPhilosophyLinguisticsChemical Synthesis and ReactionsDendrimers and Hyperbranched PolymersChemical Synthesis and Analysis