Title of article
Silica-bonded n-propyldiethylenetriamine sulfamic acid as a recyclable solid acid catalyst for the synthesis of coumarin and biscoumarin derivatives
Author/Authors
Niknam، Khodabakhsh نويسنده , , Sajadi، Seyed Ahmad نويسنده Department of Chemistry, Gachsaran Branch, Islamic Azad University, Gachsaran, Iran , , Hosseini، Roghayeh نويسنده Department of Chemistry, Gachsaran Branch, Islamic Azad University, Gachsaran, Iran. , , Baghernejad، Mojtaba نويسنده Young Researchers and Elite Club, Gachsaran Branch, Islamic Azad University, Gachsaran, Iran ,
Issue Information
فصلنامه با شماره پیاپی 0 سال 2014
Pages
11
From page
163
To page
173
Abstract
Silica-bonded n-propyldiethylenetriamine sulfamic acid (SBPDSA) was found as an efficient solid acid for the synthesis of coumarins. Coumarin derivatives were obtained via the Pechmann condensation reaction of phenols and B-keto-esters at 80 oC under solvent-free conditions. Also, biscoumarins were obtained via the condensation of aldehydes and 4-hydroxycoumarin in water at reflux conditions. The heterogeneous solid acid showed much the same efficiency when used in consecutive reaction runs.
Journal title
Iranian Journal of Catalysis
Serial Year
2014
Journal title
Iranian Journal of Catalysis
Record number
1886027
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