<p>A novel and environmentally friendly nanocatalyst was successfully synthesized by immobilizing bis(taurinyl)triazine onto silica-coated magnetic Fe₃O₄ nanoparticles (MNPs@TCT@Taurine) using a simple, cost-effective, and green methodology. The structural, morphological, and physicochemical properties of the prepared nanocatalyst were comprehensively characterized by FTIR, XRD, EDX, FESEM, TGA, and VSM analyses. The synthesized magnetic nanocatalyst exhibited remarkable catalytic efficiency in a solvent-free, one-pot, three-component condensation reaction of <i>β</i>-naphthol, various aldehydes, and amides at 90 °C. This process enabled the formation of amidoalkyl naphthols with high selectivity and minimal undesired byproducts. This heterogeneous catalyst offered several advantages over conventional systems, including high product yields, short reaction times, operational simplicity, and the elimination of hazardous organic solvents. Remarkably, the MNPs@TCT@Taurine nanocatalyst demonstrated excellent magnetic recoverability, allowing facile separation from the reaction medium using an external magnetic field. Furthermore, it maintained its catalytic efficiency over at least seven successive cycles, showing minimal activity loss. These benefits establish this nanocatalyst as a promising candidate for sustainable and recyclable applications in green organic synthesis.</p> Graphical abstract <p></p>