Title of article :
Nano Silica/ HIO 4 as a Green and Reusable Catalyst for Synthesis of 2-Naphthol Azo Dyes under Grinding Conditions
Author/Authors :
Bamoniri, A Department of Organic Chemistry - Faculty of Chemistry - University of Kashan , Pourali, A.R School of Chemistry - Damghan University , Nazifi, S.M.R School of Chemistry - Damghan University
Abstract :
Nanosilica periodic acid (nano-SPIA) is found to be a new, powerful, and reusable heterogeneous catalyst for the rapid synthesis of 2-naphtholazo dyes via diazotization of aromatic amines and followsazo coupling
with 2-naphthol under solvent-free conditions at room temperature by grinding. Eco-friendly, heterogeneous reaction conditions, high stability of diazonium salt, simple experimental procedures, and high yields are
some of the important advantages of this method.
Keywords :
Nanosilica periodic acid , Azo dye , Diazonium salt , 2-naphthol , Solvent free
Journal title :
Astroparticle Physics
