Multi-walled carbon nanotubes sulfuric acid as a reusable heterogeneous solid acid catalyst for the rapid synthesis of imidazo[1,2-a]pyridines

Multi-walled carbon nanotubes sulfuric acid as a reusable heterogeneous stable solid acid catalyst was synthesized from a facile sulfonation of hydroxyl multi-walled carbon nanotubes with chlorosulfonic acid at 0 °C during 2 h. The synthesized catalyst was found to be a highly efficient heterogeneou...

Full description

Saved in:
Bibliographic Details
Published in:Research on chemical intermediates 2015-04, Vol.41 (4), p.2377-2383
Main Authors: Shaabani, Ahmad, Seyyedhamzeh, Mozhdeh, Shaabani, Shabnam, Ganji, Nasim
Format: Article
Language:English
Subjects:
Catalysis
Chemistry
Chemistry and Materials Science
Inorganic Chemistry
Physical Chemistry
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Multi-walled carbon nanotubes sulfuric acid as a reusable heterogeneous stable solid acid catalyst was synthesized from a facile sulfonation of hydroxyl multi-walled carbon nanotubes with chlorosulfonic acid at 0 °C during 2 h. The synthesized catalyst was found to be a highly efficient heterogeneous catalyst for the Groebke-type synthesis of imidazo[1,2- a ]pyridines through a condensation reaction of an aldehyde, a 2-aminopyridine, and an isocyanide in methanol in excellent yields with short reaction times at room temperature. The catalyst could be easily recovered by simple filtration and reused without losing its activity. Graphical Abstract Multi-walled carbon nanotubes sulfuric acid as a reusable heterogeneous solid acid catalyst for the rapid synthesis of imidazo[1,2- a ]pyridines .
ISSN:0922-6168
1568-5675
DOI:10.1007/s11164-013-1352-4