TY - EJOUR
AU - Niknam, Khodabakhsh
AU - Sajadi, Seyed Ahmad
AU - Hosseini, Roghayeh
AU - Baghernejad, Mojtaba
PY - 2024
DA - February
TI - Silica-bonded n-propyldiethylenetriamine sulfamic acid as a recyclable solid acid catalyst for the synthesis of coumarin and biscoumarin derivatives
T2 - Iranian Journal of Catalysis
VL - 4
L1 - https://oiccpress.com/iranian-journal-of-catalysis/article/silica-bonded-n-propyldiethylenetriamine-sulfamic-acid-as-a-recyclable-solid-acid-catalyst-for-the-synthesis-of-coumarin-and-biscoumarin-derivatives/
N2 - 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 β-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.
IS - 3
PB - OICC Press
KW - Aromatic aldehydes, Solid acids, Coumarins, Pechmann reaction, Biscoumarins, Silica-bonded n-propyldiethylenetriamine sulfamic acid, Catalyst 
EN -