An Efficient Synthesis of 1,8-Dioxo-Octahydroxanthenes Derivatives Using Heterogeneous Ce-ZSM-11 Zeolite Catalyst

Abstract

The Ce-ZSM-11 zeolite has been used as an efficient catalyst for the one pot synthesis of 1,8-dioxooctahydroxanthene derivatives from aromatic aldehyde and 5,5-dimethyl-cyclohexane-1,3-dione under reflux condition. The catalyst was characterized by Powder X-ray diffraction (XRD), Scanning Electron Microscopy (SEM), Energy Dispersive Spectroscopy (EDS), Fourier Transform Infrared Spectroscopy (FTIR), Brunauer-Emmer-Teller (BET) surface area analysis, and Temperature Programmed Desorption (TPD) techniques. This method provides several advantageous such as use of inexpensive catalyst, simple work-up procedure, high yield of desired product and reusability of catalyst.

BioMOF-Mn: An Antimicrobial Agent and an Efficient Nanocatalyst for Domino One-Pot Preparation of Xanthene Derivatives

“…The core structure of xanthene exhibits various physicochemical and pharmacological properties such as antiviral, antibacterial, analgesic, antimalarial, anti-inflammatories, and anticancer . Sulfamic acid, pTSA, silica sulfuric acid, molecular iodine, TiO 2 –SO 4 2– , NaHSO 4 –SiO 2 , cyanuric chloride, amberlyst-15, acyclic acidic ionic liquids, core/shell Fe 3 O 4 @GA@isinglass, boric acid, H 5 PW 10 V 2 O 40 /MCM-48, polymeric catalyst, polytungstozincate acid, Fe­(OTF) 3 , montmorillonite K10, Ni­(ClO 4 ) 2 .6H 2 O, DBH, WCl 6 , Sr­(OTF) 2 , proline triflate, TTAB, InCl 3 , TCCA, TMGT, bmim­[HSO 4 ], phosphosulfonic acid, [DMEA]­[PHSO 4 ], sulfamic acid supported on cellulose, zeolites, ion-exchange resins, silica sulfuric acid, Fe 3 O 4 @SiO 2 -SnCl 4 , ChCl/itaconic acid, [CTA]­Fe/MCM-41, Fe 3 O 4 @propylsilane@histidine­[HSO 4– ], and Fe 3 O 4 @SiO 2 -HPW were used as catalysts for the synthesis of xanthene derivatives . Some reactions catalyzed by them were associated with difficult work up, harsh reaction conditions, poisonous solvents, and low-yield products.…”