Aim and Objective: The present study has developed an efficient and eco-friendly
protocol for the synthesis of aryl-14-H-dibenzo[a,j] xanthenes through a one-pot condensation
reaction of 2-naphthol and arylaldehydes in aqueous media using the nanocatalytic MCM-41-SO3H
under ultrasonic illumination.
Material and Methods: Using SEM and XRD analyses, MCM-41-SO3H nanoparticles were
characterized. Therefore, for high magnification, taking the SEM image, the mesoporous surface of
MCM-41-SO3H nanoparticles coated with gold for 2 minutes was characterized. Moreover, at a scan
rate of 0.02° (2Θ)/sec, XRD analysis from 1.5° (2Θ) to 10.0° (2Θ) was performed.
Result: For our considered sample, some well-ordered XRD patterns with one main peak as well as
three minor peaks equal to those of MCM-41 materials were observed.
Conclusion: The suggested route demonstrates very promising properties like higher yields,
decrease in the time of reaction (5-10 min), mild and straightforward conditions, low level of
toxicity, and inclusion of a cost-efficient and ecofriendly catalyst having considerable reusability.