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A Clean, Mild, and Efficient Preparation of Aryl 14H-benzo[a,j]xanthene leuco-dye Derivatives Via Nanocatalytic MCM-41-SO3H Under Ultrasonic Irradiation in Aqueous Media

Author(s):

Mostafa Fatholahi*, Shahnaz Rostamizadeh and Alimohammad Amani   Pages 1 - 9 ( 9 )

Abstract:


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. 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. 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. 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.

Keywords:

Xanthene, Leuco-dye, Nanocatalyst, MCM-41-SO3H, Ultrasonic irradiation, Geen chemistry.

Affiliation:

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



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