Selective adsorption of trace morpholine impurities over N -ethyl morpholine by tetralactam solids

The separation and especially the removal of morpholine (MOR) impurities from -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...

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2023-06, Vol.59 (47), p.7204-7207
Main Authors: Li, Shi-Yao, Yao, Huan, Hu, Hao, Chen, Wen-Jie, Yang, Liu-Pan, Wang, Li-Li
Format: Article
Language:English
Subjects:
Adsorption
Chemical Industry
Fine chemicals
Hydrogen Bonding
Impurities
Morpholine
Morpholines
Selective adsorption
Separation
Single crystals
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Summary:The separation and especially the removal of morpholine (MOR) impurities from -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.
ISSN:1359-7345
1364-548X
DOI:10.1039/d3cc01164j