Abstract
For the first time, anatase TiO2 nanoparticles with high specific surface area have been synthesized by hydrothermal method using titanium (IV) ethoxide solution. Nanocrystalline titania-based sulfonic acid (nano-TiO2–Bu–SO3H (n-TBSA)) was successfully prepared by the reaction of nano-TiO2 and 1,4-butane sultone. The samples were characterized using FT-IR, XRD, TGA, EDX, FESEM, TEM, BET and BJH analysis. The present catalytic system can be applied in multicomponent reaction for the synthesis of 1-amidoalkyl-2-naphthols and 1,8-dioxo-octahydro-xanthenes. The simple preparation, chemical stability, product selectivity and the recyclability of the catalyst make it eco-friendly and economical worthwhile.
Published Version
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