A Magnetically Recoverable and Highly Effectual Fe3O4 Encapsulated MWCNTs Nano-Composite for Synthesis of 1,8-Dioxo-octahydroxanthene Derivatives

1,8-Dioxooctahydroxanthene derivatives were synthesized from 5,5-dimethyl-1,3-cyclohexanedione and substituted aromatic aldehydes in attendance of Fe3O4@OMWCNT aseco-friendly and recyclable nano-catalyst. The heterogeneous and magnetically separable catalyst was prepared as per procedure and characterized with help of analytical tools. After successful characterization of catalyst, it was used for present transformation, which reported 90-96% yield of isolated product. Key advantages of this method are magnetically separable and reusable catalyst, improved yield, short time, less expensive, and easy handling of reaction procedure.