@article{Makvandi_Dil_Malekzadeh_Baghernejad_Niknam_2024, title={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}, volume={3}, url={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/}, abstractNote={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.}, number={4}, journal={Iranian Journal of Catalysis}, publisher={OICC Press}, author={Makvandi, Marzieh and Dil, Fatemeh Abiar and Malekzadeh, Ameneh and Baghernejad, Mojtaba and Niknam, Khodabakhsh}, year={2024}, month={Feb.}, keywords={Silica-bonded n-propyltriethylene-tetramine, Solid bases, Catalyst, Synthesis, Chromenes} }