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8307450 
Journal Article 
Facile synthesis of N-acylsulfonamide in the presence of silica chloride (SiO2-Cl) both under heterogeneous and solvent-free conditions 
Massah, AR; Momeni, AR; Dabagh, M; Aliyan, H; Naghash, HJ 
2008 
1 
Synthetic Communications
ISSN: 0039-7911 
TAYLOR & FRANCIS INC 
PHILADELPHIA 
38 
2 
265-273 
English 
WOS:000253042000015 
Sulfonamides were converted to the corresponding N-acyl sulfonamides with carboxylic acid chlorides and anhydrides in the presence of silica chloride. All reactions were performed in both heterogeneous and solvent-free conditions. This method provides the N-acyl sulfonamides products in good to high yield and purity. Copyright © Taylor & Francis Group, LLC. 
Heterogeneous; N-acylation; N-acylsulfonamide; Silica chloride; Solvent-free