TY - EJOUR AU - Makvandi, Marzieh AU - Dil, Fatemeh Abiar AU - Malekzadeh, Ameneh AU - Baghernejad, Mojtaba AU - Niknam, Khodabakhsh PY - 2024 DA - February TI - Silica-bonded n-propyltriethylene-tetramine as a recyclable solid base catalyst for the synthesis of 2-amino-5-oxo-5,6,7,8-tetrahydro-4H-chromenes T2 - Iranian Journal of Catalysis VL - 3 L1 - https://oiccpress.com/iranian-journal-of-catalysis/article/silica-bonded-n-propyltriethylene-tetramine-as-a-recyclable-solid-base-catalyst-for-the-synthesis-of-2-amino-5-oxo-5678-tetrahydro-4h-chromenes/ N2 - Silica-bonded n-propyltriethylene-tetramine (SBNPTT) was found as an efficient solid base for the synthesis of 2-amino-5-oxo-5,6,7,8-tetrahydro-4H-chromenes. Chromene derivatives were obtained via the three-component condensation reaction of aromatic aldehydes, malononitrile, and dimedone at 80 oC under solvent-free conditions. The heterogeneous solid base showed much the same efficiency when used in consecutive reaction runs. IS - 4 PB - OICC Press KW - Catalyst, Synthesis, Chromenes, Silica-bonded n-propyltriethylene-tetramine, Solid bases EN -