Metal-Free Regioselective Synthesis of 2-Nitro-3-arylimidazo[1,2-a]pyridines via Oxidative Amination under Air Using Silica Sulfuric Acid as an Effective Heterogeneous Catalyst

Heterocycles ◽  
2021 ◽  
Vol 102 (7) ◽  
pp. 1402
Author(s):  
Divya Sree Uppalapati ◽  
Rama Sekhara Reddy Dachuru ◽  
Satya Veni Sunkara
Keyword(s):  
Sulfuric Acid ◽  
Heterogeneous Catalyst ◽  
Regioselective Synthesis ◽  
Silica Sulfuric Acid ◽  
Oxidative Amination ◽  
Metal Free

ChemInform Abstract: Green and Metal-Free Catalytic Oxidation of Urazoles into Triazolinediones by Guanidinium Nitrate and Catalytic Amounts of Silica Sulfuric Acid.

ChemInform ◽  
2010 ◽  
Vol 42 (1) ◽  
pp. no-no
Author(s):  
Mohsen Nikoorazm ◽  
Arash Ghorbani-Choghamarani ◽  
Hamid Goudarziafshar ◽  
Shadpour Mallakpour
Keyword(s):  
Sulfuric Acid ◽  
Catalytic Oxidation ◽  
Silica Sulfuric Acid ◽  
Metal Free ◽  
Guanidinium Nitrate

ChemInform Abstract: Metal-Free Oxidation of Urazole and 1,4-Dihydropyridine Derivatives under Mild and Heterogeneous Conditions by Nitro Urea, Derived from Urea Nitrate, and Silica Sulfuric Acid.

ChemInform ◽  
2010 ◽  
Vol 41 (40) ◽  
pp. no-no
Author(s):  
Arash Ghorbani-Choghamarani ◽  
Mohammad A. Zolfigol ◽  
Maryam Hajjami ◽  
Shahrbanoo Rastgoo ◽  
Shadpour Mallakpour
Keyword(s):  
Sulfuric Acid ◽  
Silica Sulfuric Acid ◽  
Metal Free ◽  
Urea Nitrate ◽  
Free Oxidation ◽  
Dihydropyridine Derivatives

An efficient synthesis of α-Amino phosphonates using silica sulfuric acid as a heterogeneous catalyst

2009 ◽  
Vol 20 (5) ◽  
pp. 316-318 ◽  
Author(s):  
Malek Taher Maghsoodlou ◽  
Sayyed Mostafa Habibi Khorassani ◽  
Nourollah Hazeri ◽  
Mohsen Rostamizadeh ◽  
Seyed Sajad Sajadikhah ◽  
...  
Keyword(s):  
Sulfuric Acid ◽  
Heterogeneous Catalyst ◽  
Efficient Synthesis ◽  
Silica Sulfuric Acid ◽  
Amino Phosphonates
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