Simultaneous sonication assistance for the synthesis of pyrroloacridinones and its efficient catalyst HBF4 supported on uniform spherical silica nanoparticles

摘要

Fluoroboric acid (HBF4) adsorbed on mesoporous silica nanoparticles of 600 nm dimension was synthesized and characterized by N-2 adsorption, HRTEM, EDX, XPS. The applicability of silica-HBF4 was probed through the sonication assisted synthesis of pyrroloacridinones in ecofriendly solvent ethanol. Standard leaching experiment was performed to show that the reaction was heterogeneous with this recyclable catalyst. (C) 2014 Elsevier B.V. All rights reserved.