Mostafa Fathollahi, Shahnaz Rostamizadeh* and Ali M. Amani Pages 5 - 13 ( 9 )
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.
Xanthene, leuco-dye, nanocatalyst, MCM-41-SO3H, ultrasonic irradiation, green chemistry.
Department of Chemistry, K. N. Toosi University of Technology, P.O. Box 15875-4416, Tehran, Department of Chemistry, K. N. Toosi University of Technology, P.O. Box 15875-4416, Tehran, Department of Chemistry, K. N. Toosi University of Technology, P.O. Box 15875-4416, Tehran