The Use of Graphene Quantum Dot Nanocatalysts with Acidic Functional Groups to Synthesize Xanthene Derivatives under Microwave Radiation conditions

Graphene quantum dots (CGQDs) were used as an effective acidic nanocatalyst for thecoupling reaction of 2-naphthole and benzaldehyde derivatives for the preparation of 14Hdibenzoxanthene derivatives, in non-solvent and using microwave irradiation conditions,following the principles of green chemistry. The structures of the 14H-dibenzo xanthenederivatives were confirmed by FT-IR, 1H-NMR and 13C-NMR spectroscopic techniques. Thestructure of catalyst was also confirmed by FT-IR, XRD, TEM and PL techniques. In order todemonstrate the positive effect of the CGQDs catalyst, the reaction times and yields of theproducts were compared with similar products that were previously reported. 14H-dibenzoxanthene derivatives were synthesized in a simple procedure with good to excellent yields.

Keywords:

Graphene Quantum Dot , Nanocatalyst , Xanthene Derivatives , Microwave Radiation