Synthesis, characterization of mesoporous silica materials from waste coal fly ash for the classical Mannich reaction

The present study describes the synthesis of mesoporous silica material (MCM-41) from fly ash of thermal power plants so as to meet requirements of green chemistry approach. The synthesized material was characterized by XRD, FT-IR, SEM-EDS techniques. The prepared material, MCM-41, was utilized as catalyst for classical Mannich reaction for the synthesis of beta-amino carbonyl compounds. The present methodology offers several advantages, like excellent yields, short reaction times, reusability of catalyst and simple work up procedure. (C) 2011 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.