| Literature DB >> 31635737 |
Mahnaz Yousefian1, Zahra Rafiee2.
Abstract
In this study, a novel copper-based metal-organic framework (Cu-MOF)-immobilized modified chitosan (CS-CA), CS-CA/Cu-MOF, has been constructed easily and applied as an extremely efficient and economic mesoporous catalyst for the Knoevenagel condensation between aromatic aldehydes with malononitrile under mild reaction conditions. The resultant catalyst is characterized via various techniques including FTIR, XRD, FE-SEM, EDX, TEM, BET and STA analyses. The CS-CA/Cu-MOF was reused eight times without a noteworthy decrease in the catalytic activity. The use of CS-CA/Cu-MOF results in outstanding catalytic activity, high recyclability, very short reaction time at 25 °C, and an easy work-up process for the Knoevenagel condensation.Entities:
Keywords: 1,4-Benzenedicarboxylate (PubChem CID: 154269); 2-Chlorobenzaldehyde (PubChem CID: 6996); 2-Hydroxybenzaldehyde (PubChem CID: 6998); 4-Chlorobenzaldehyde (PubChem CID: 7726); 4-Methoxybenzaldehyde (PubChem CID: 31244); 4-Methylbenzaldehyde (PubChem CID: 7725); 4-Nitrobenzaldehyde (PubChem CID: 541); Acetic acid (PubChem CID: 176); Acetic anhydride (PubChem CID: 7918); Benzaldehyde (PubChem CID: 240); Chitosan; Chitosan (PubChem CID: 71853); Chloroform (PubChem CID: 6212); Citric acid; Citric acid (PubChem CID: 311); Copper(II) nitrate trihydrate (PubChem CID: 9837674); Ethanol (PubChem CID: 702); Knoevenagel reaction; Malononitrile (PubChem CID: 8010); Metal-organic framework; N,N-Dimethylformamide (PubChem CID: 6228); Nanocomposite
Year: 2019 PMID： 31635737 DOI： 10.1016/j.carbpol.2019.115393
Source DB: PubMed Journal: Carbohydr Polym ISSN： 0144-8617 Impact factor: 9.381