Issue 20, 2021, Issue in Progress
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RSC Advances

Triazine bis(pyridinium) hydrogen sulfate ionic liquid immobillized on functionalized halloysite nanotubes as an efficient catalyst for one-pot synthesis of naphthopyranopyrimidines†

Marzieh Samadani,a   Beheshteh Asadi,a   Iraj Mohammadpoor-Baltork, ORCID logo *a   Valiollah Mirkhani,a   Shahram Tangestaninejad ORCID logo a  and  Majid Moghadam ORCID logo a  

* Corresponding authors

a Department of Chemistry, Catalysis Division, University of Isfahan, Isfahan 81746-73441, Iran
E-mail: imbaltork@sci.ui.ac.ir
Tel: +98 31 3793 4927

Abstract

1,1′-(6-(Propyl amino)-1,3,5-triazine-2,4-diyl)bis(pyridinium) hydrogen sulfate immobillized on halloysite nanotubes [(PATDBP)(HSO4)2@HNT] as a solid acid nanocatalyst was successfully synthesized and characterized by various analysis techniques such as FT-IR, TGA, SEM/EDX, elemental mapping, TEM and elemental analysis. This catalyst was found to be highly efficient for the convenient synthesis of naphthopyranopyrimidine derivatives through a one-pot three-component reaction of β-naphthol, aldehydes and N,N-dimethylbarbituric acid in excellent yields under solvent-free conditions. Furthermore, the catalyst could be recovered and reused five times without any notable loss of its activity.

Graphical abstract: Triazine bis(pyridinium) hydrogen sulfate ionic liquid immobillized on functionalized halloysite nanotubes as an efficient catalyst for one-pot synthesis of naphthopyranopyrimidines

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Article information

DOI
https://doi.org/10.1039/D1RA01230D
Article type
Paper
Submitted
15 Feb 2021
Accepted
15 Mar 2021
First published
23 Mar 2021
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2021,11, 11976-11983

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Triazine bis(pyridinium) hydrogen sulfate ionic liquid immobillized on functionalized halloysite nanotubes as an efficient catalyst for one-pot synthesis of naphthopyranopyrimidines

M. Samadani, B. Asadi, I. Mohammadpoor-Baltork, V. Mirkhani, S. Tangestaninejad and M. Moghadam, RSC Adv., 2021, 11, 11976 DOI: 10.1039/D1RA01230D

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