Synthesis of Core‐Shell Magnetic Supramolecular Nanocatalysts based on Amino‐Functionalized Calix[4]arenes for the Synthesis of 4H‐Chromenes by Ultrasonic Waves. Issue 7 (24th March 2020)

• Record Type: Journal Article
• Authors: Eivazzadeh‐Keihan, Reza; Noruzi, Ehsan Bahojb; Radinekiyan, Fateme; Salimi Bani, Milad; Maleki, Ali; Shaabani, Behrouz; Haghpanahi, Mohammad
• Is Part Of: ChemistryOpen. Volume 9:Issue 7(2020)
• Page Start: 735
• Page End: 742
• Publication Date: 2020-03-24
• Subjects: 2-amino-4H-chromene -- calixarenes -- heterogeneous catalysis -- sonochemistry -- supramolecular chemistry; Chemistry -- Periodicals; 540; 540.5
• DOI: 10.1002/open.202000005
• Languages: English
• ISSNs: 2191-1363

Abstract

Abstract: One of the most common phenol‐formaldehyde cyclic oligomers from hydroxyalkylation reactions that exhibit supramolecular chemistry are calixarenes. These macrocyclic compounds are qualified to act as synthetic catalysts due to their specific features including being able to form host‐guest complexes, having unique structural scaffolds and their relative ease of chemical modifications with a variety of functions on their upper rim and lower rim. Here, a functional magnetic nanocatalyst was designed and synthesized by using a synthetic amino‐functionalized calix[4]arene. Its catalytic activity was evaluated in a one‐pot synthesis of 2‐amino‐ 4H ‐chromene derivatives. Besides, this novel magnetic nanocatalyst was characterized by spectroscopic and analytical techniques such as FT‐IR, EDX, FE‐SEM, TEM VSM, XRD analysis. Abstract : A novel core‐shell magnetic nanocomposite based on an amino‐functionalized calix[4]arenes was designed and synthesized. The compound has resulted to be an excellent magnetic nanocatalyst in the one‐pot synthesis of 2‐amino‐ 4H ‐chromene derivatives.