An efficient synthesis of 2-arylbenzothiazoles using silica sulfuric acid, oxalic acid and aluminum chloride hydrate as heterogeneous and homogeneous catalyst systems

2010 ◽  
Vol 76 (1) ◽  
pp. 27-37 ◽  
Author(s):  
Behrooz Maleki
Keyword(s):  
Sulfuric Acid ◽  
Oxalic Acid ◽  
Aluminum Chloride ◽  
Convenient Method ◽  
Homogeneous Catalyst ◽  
Efficient Synthesis ◽  
Silica Sulfuric Acid ◽  
Mild Conditions ◽  
Catalyst Systems ◽  
Chloride Hydrate

A convenient method for the synthesis of 2-arylbenzothiazoles from condensation of aromatic/heteroaromatic aldehydes with 2-aminothiophenol has been developed using inexpensive, green and reusable solid acids – silica sulfuric acid (SSA), oxalic acid or AlCl3·6H2O as efficient catalysts. The reactions occurred under mild conditions to afford the corresponding 2-arylbenzothiazoles in good to excellent yields.

Nano-silica sulfuric acid catalyzed the efficient synthesis of 1,3,5-triarylbenzenes under microwave irradiation

2012 ◽  
Vol 9 (5) ◽  
pp. 791-798 ◽  
Author(s):  
R. Ghanbaripour ◽  
I. Mohammadpoor-Baltork ◽  
M. Moghadam ◽  
A. R. Khosropour ◽  
S. Tangestaninejad ◽  
...  
Keyword(s):  
Sulfuric Acid ◽  
Microwave Irradiation ◽  
Efficient Synthesis ◽  
Silica Sulfuric Acid ◽  
Nano Silica ◽  
Acid Catalyzed

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

ChemInform Abstract: An Efficient Synthesis of α-Amino Phosphonates Using Silica Sulfuric Acid as a Heterogeneous Catalyst.

ChemInform ◽  
2010 ◽  
Vol 41 (6) ◽  
Author(s):  
Malek Taher Maghsoodlou ◽  
Sayyed Mostafa Habibi Khorassani ◽  
Nourollah Hazeri Hazeri ◽  
Mohsen Rostamizadeh ◽  
Seyed Sajad Sajadikhah ◽  
...  
Keyword(s):  
Sulfuric Acid ◽  
Heterogeneous Catalyst ◽  
Efficient Synthesis ◽  
Silica Sulfuric Acid ◽  
Amino Phosphonates

Silica Sulfuric Acid-Catalyzed Five-component Efficient Synthesis of Five-Substituted Tetrahydropyridines

2013 ◽  
Vol 51 (2) ◽  
pp. 442-449 ◽  
Author(s):  
Xiao-xiao Zhang ◽  
Yu Wan ◽  
Li-ling Pang ◽  
Hai-ying Wang ◽  
Ling-ling Zhao ◽  
...  
Keyword(s):  
Sulfuric Acid ◽  
Efficient Synthesis ◽  
Silica Sulfuric Acid ◽  
Acid Catalyzed

ChemInform Abstract: Mononitration of Phenol Derivatives by Guanidinium Nitrate and Silica Sulfuric Acid under Mild Conditions.

ChemInform ◽  
2012 ◽  
Vol 43 (20) ◽  
pp. no-no
Author(s):  
Arash Ghorbani-Choghamarani ◽  
Hamid Goudarziafshar ◽  
Mohsen Nikoorazm ◽  
Zahra Naseri
Keyword(s):  
Sulfuric Acid ◽  
Silica Sulfuric Acid ◽  
Phenol Derivatives ◽  
Mild Conditions ◽  
Guanidinium Nitrate

scholarly journals Silica Sulfuric Acid/ NaNO2 as a Novel Heterogeneous System for the Nitration of Phenols under Mild Conditions

Molecules ◽  
2002 ◽  
Vol 7 (10) ◽  
pp. 734-742 ◽  
Author(s):  
Mohammad Zolfigol ◽  
Elahe Madrakian ◽  
Ezat Ghaemi
Keyword(s):  
Sulfuric Acid ◽  
Heterogeneous System ◽  
Silica Sulfuric Acid ◽  
Mild Conditions

Silica Sulfuric Acid/Kclo3/Wet SiO2 as an Efficient Heterogeneous Method for the Oxidation of Alcohols Under Mild Conditions

2003 ◽  
Vol 2003 (5) ◽  
pp. 273-274 ◽  
Author(s):  
BiBi Fatemeh Mirjalili ◽  
Mohammad Ali Zolfigol ◽  
Abdolhamid Bamoniri ◽  
Zahra Zaghaghi
Keyword(s):  
Sulfuric Acid ◽  
Potassium Chlorate ◽  
Silica Sulfuric Acid ◽  
Mild Conditions ◽  
Oxidation Of Alcohols

A combination of silica sulfuric acid and potassium chlorate in the presence of wet SiO2 was used as an effective oxidising agent for the oxidation of alcohols to their corresponding aldehyde or ketone derivatives in acetonitrile or toluene with good yields.

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