Rice-husk-supported FeCl3 nano-particles: Introduction of a mild, efficient and reusable catalyst for some of the multi-component reactions

Rice-husk-supported FeCl3 nano-particles (FeCl3–RiH) were prepared and used as an environmentally friendly catalyst in the synthesis of β-amino carbonyl compounds, 1,8-dioxo-octahydro xanthenes, and bis-indolyl methanes from simple and readily available precursor molecules.