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 aquatic media.

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 aquatic media. Comb Chem High Throughput Screen. 2018 Jan 03;: Authors: Fatholahi M, Rostamizadeh S, Amani A 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. PMID: 29299982 [PubMed - as supplied by publisher]
Source: Combinatorial Chemistry and High Throughput Screening - Category: Chemistry Authors: Tags: Comb Chem High Throughput Screen Source Type: research