Title of article
Nanomagnetically modified sulfuric acid (γ-Fe2O3@SiO2-OSO3H): an efficient, fast, and reusable green catalyst for the Ugi-like Groebke-Blackburn-Bienaymé three-component reaction under solvent-free conditions
Author/Authors
Rostamnia، نويسنده , , Sadegh and Lamei، نويسنده , , Kamran and Mohammadquli، نويسنده , , Mohsen and Sheykhan، نويسنده , , Mehdi and Heydari، نويسنده , , Akbar، نويسنده ,
Issue Information
هفته نامه با شماره پیاپی سال 2012
Pages
4
From page
5257
To page
5260
Abstract
Superparamagnetic nanoparticles of modified sulfuric acid (γ-Fe2O3@SiO2-OSO3H) represent a straightforward and green catalyst for the rapid synthesis of aminoimidazopyridine skeletons via the Ugi-like Groebke-Blackburn-Bienaymé three-component reaction. The γ-Fe2O3@SiO2-OSO3H catalyst could be recovered and reused in five reaction cycles, giving a total TON = 453. The products were prepared under solvent-free conditions without any additives.
Keywords
Encapsulated iron oxide nanoparticles , Magnetically recoverable nanocatalyst , Modified sulfuric acid , green chemistry , Ugi-like multicomponent reaction
Journal title
Tetrahedron Letters
Serial Year
2012
Journal title
Tetrahedron Letters
Record number
1882068
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