scholarly journals Silica Sulfuric Acid as an Efficient Heterogeneous Catalyst for the Solvent-Free Synthesis of 1-Substituted 1H-1,2,3,4-Tetrazoles

2013 ◽  
Vol 2013 ◽  
pp. 1-4 ◽  
Author(s):  
Davood Habibi ◽  
Hiva Nabavi ◽  
Mahmoud Nasrollahzadeh
Keyword(s):  
Sulfuric Acid ◽  
Heterogeneous Catalyst ◽  
Sodium Azide ◽  
Solvent Free ◽  
Triethyl Orthoformate ◽  
Primary Amines ◽  
Silica Sulfuric Acid ◽  
Solvent Free Conditions ◽  
Solvent Free Synthesis ◽  
Efficient Heterogeneous Catalyst

Silica sulfuric acid (SSA) was found to be an efficient heterogeneous catalyst for the synthesis of 1-substituted 1H-1,2,3,4-tetrazoles from the reaction of primary amines with triethyl orthoformate and sodium azide under thermal and solvent-free conditions.

Silica Sulfuric Acid as an Efficient Heterogeneous Catalyst for the Synthesis of 1,1-Diacetates under Solvent-Free Conditions.

ChemInform ◽  
2006 ◽  
Vol 37 (20) ◽  
Author(s):  
Abdol R. Hajipour ◽  
Amin Zarei ◽  
Leila Khazdooz ◽  
Bi Bi F. Mirjalili ◽  
Nafise Sheikhan ◽  
...  
Keyword(s):  
Sulfuric Acid ◽  
Heterogeneous Catalyst ◽  
Solvent Free ◽  
Silica Sulfuric Acid ◽  
Solvent Free Conditions ◽  
Efficient Heterogeneous Catalyst

Silica Sulfuric Acid as an Efficient Heterogeneous Catalyst for the Synthesis of 1,1-Diacetates under Solvent-Free Conditions

Synthesis ◽  
2005 ◽  
Vol 2005 (20) ◽  
pp. 3644-3648 ◽  
Author(s):  
Abdol R. Hajipour ◽  
Amin Zarei ◽  
Leila Khazdooz ◽  
Bi Bi Mirjalili ◽  
Nafise Sheikhan ◽  
...  
Keyword(s):  
Sulfuric Acid ◽  
Heterogeneous Catalyst ◽  
Solvent Free ◽  
Silica Sulfuric Acid ◽  
Solvent Free Conditions ◽  
Efficient Heterogeneous Catalyst

scholarly journals Silica sulfuric acid: a reusable solid catalyst for one pot synthesis of densely substituted pyrrole-fused isocoumarins under solvent-free conditions

2013 ◽  
Vol 9 ◽  
pp. 2344-2353 ◽  
Author(s):  
Sudipta Pathak ◽  
Kamalesh Debnath ◽  
Animesh Pramanik
Keyword(s):  
Sulfuric Acid ◽  
Low Cost ◽  
Solvent Free ◽  
Primary Amines ◽  
Solid Catalyst ◽  
Silica Sulfuric Acid ◽  
Reaction Conditions ◽  
One Pot ◽  
Solvent Free Conditions ◽  
Solvent Free Reaction

A convenient and efficient methodology for the synthesis of densely substituted pyrrole-fused isocoumarins, which employs solid-supported silica sulfuric acid (SSA) as catalyst, has been developed. When the mixture of ninhydrin adducts of acetylacetone/ethyl acetoacetate and primary amines was heated on the solid surface of SSA under solvent-free conditions, the pyrrole-fused isocoumarins were formed in good yields. This synthetic method has several advantages such as the employment of solvent-free reaction conditions without the use of any toxic reagents and metal catalysts, the ease of product isolation, the use of a recyclable catalyst, the low cost, the easy availability of the starting materials, and the excellent yields of products.

Silica sulfuric acid: An efficient reusable heterogeneous catalyst for the synthesis of 2,3-dihydroquinazolin-4(1H)-ones in water and under solvent-free conditions

2008 ◽  
Vol 9 (5) ◽  
pp. 785-788 ◽  
Author(s):  
Minoo Dabiri ◽  
Peyman Salehi ◽  
Mostafa Baghbanzadeh ◽  
Mohammad Ali Zolfigol ◽  
Maria Agheb ◽  
...  
Keyword(s):  
Sulfuric Acid ◽  
Heterogeneous Catalyst ◽  
Solvent Free ◽  
Silica Sulfuric Acid ◽  
Solvent Free Conditions

A Cu-BTC metal–organic framework (MOF) as an efficient heterogeneous catalyst for the aerobic oxidative synthesis of imines from primary amines under solvent free conditions

2020 ◽  
Vol 44 (15) ◽  
pp. 5972-5979 ◽  
Author(s):  
Boosa Venu ◽  
Varimalla Shirisha ◽  
Bilakanti Vishali ◽  
Gutta Naresh ◽  
Ramineni Kishore ◽  
...  
Keyword(s):  
Heterogeneous Catalyst ◽  
Metal Organic Framework ◽  
Solvent Free ◽  
Primary Amines ◽  
Solvent Free Conditions ◽  
Metal Organic ◽  
Efficient Heterogeneous Catalyst ◽  
Organic Framework

A Cu-BTC MOF catalyst has been identified as an efficient and reusable heterogeneous catalyst for imine formation under neat conditions.

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