An efficient and chemoselective Cbz-protection of amines using silica–sulfuric acid at room temperature

2007 ◽  
Vol 48 (46) ◽  
pp. 8170-8173 ◽  
Author(s):  
Manoj B. Gawande ◽  
Vivek Polshettiwar ◽  
Rajender S. Varma ◽  
Radha V. Jayaram
Keyword(s):  
Sulfuric Acid ◽  
Room Temperature ◽  
Silica Sulfuric Acid

The first report on the preparation of boehmite silica sulfuric acid and its applications in some multicomponent organic reactions

2016 ◽  
Vol 40 (2) ◽  
pp. 1205-1212 ◽  
Author(s):  
Arash Ghorbani-Choghamarani ◽  
Bahman Tahmasbi
Keyword(s):  
Sulfuric Acid ◽  
Room Temperature ◽  
Organic Reactions ◽  
Silica Sulfuric Acid ◽  
First Report

Boehmite silica sulfuric acid was prepared at room temperature using commercially available materials and applied as a nanocatalyst for the preparation of DHQs and PHQs.

Aluminum nitrate and silica sulfuric acid as efficient nitrating media for the mononitration of phenols under mild and heterogeneous conditions

2009 ◽  
Vol 87 (8) ◽  
pp. 1144-1147 ◽  
Author(s):  
Arash Ghorbani-Choghamarani ◽  
Hamid Goudarziafshar ◽  
Mohsen Nikoorazm ◽  
Somaieh Yousefi
Keyword(s):  
Sulfuric Acid ◽  
Room Temperature ◽  
Aluminum Nitrate ◽  
Silica Sulfuric Acid ◽  
Phenol Derivatives

A variety of phenol derivatives were successfully nitrated via combination of Al(NO3)3·9H2O and silica sulfuric acid in the presence of wet SiO2 (50% w/w) in dichloromethane at room temperature with moderate-to-good yields.

ChemInform Abstract: An Efficient and Chemoselective Cbz-Protection of Amines Using Silica—Sulfuric Acid at Room Temperature.

ChemInform ◽  
2008 ◽  
Vol 39 (9) ◽  
Author(s):  
Manoj B. Gawande ◽  
Vivek Polshettiwar ◽  
Rajender S. Varma ◽  
Radha V. Jayaram
Keyword(s):  
Sulfuric Acid ◽  
Room Temperature ◽  
Silica Sulfuric Acid

scholarly journals Acetylation of Phenols, Anilines, and Thiols Using Silica Sulfuric Acid under Solvent-Free Conditions

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
Davood Habibi ◽  
Payam Rahmani ◽  
Ziba Akbaripanah
Keyword(s):  
Sulfuric Acid ◽  
Heterogeneous Catalyst ◽  
Room Temperature ◽  
Solvent Free ◽  
Amino Group ◽  
Silica Sulfuric Acid ◽  
Solvent Free Conditions

Silica sulfuric acid was employed as a heterogeneous catalyst for the acetylation of a variety of phenols, amines, and thiols under solvent-free conditions at room temperature. Deactivated substrates also acetylated rapidly, and the method showed the preferential selectivity for acetylation of amino group in the presence of hydroxyl groupinwhich no C-acylation was observed.

ChemInform Abstract: Silica Sulfuric Acid Mediated Acylation of Amines with 1,3-Diketones via C-C Bond Cleavage under Solvent-Free Conditions.

ChemInform ◽  
2016 ◽  
Vol 47 (8) ◽  
pp. no-no
Author(s):  
Ruiqiang Guo ◽  
Chuanlei Zhu ◽  
Zhe Sheng ◽  
Yanzhe Li ◽  
Wei Yin ◽  
...  
Keyword(s):  
Sulfuric Acid ◽  
Bond Cleavage ◽  
Solvent Free ◽  
Silica Sulfuric Acid ◽  
Solvent Free Conditions
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