A Highly Efficient and Environmentally Benign Procedure for the Synthesis of Xanthenes Using Graphene Oxide and Polyethylene Nanocomposite Supported Methane Sulfonic Acid

This work reports the efficient synthesis of xanthenes using polyethylene and graphene oxide nanocomposite. Nanocomposite was constructed using modified polyethylene and diethylenetriamine functionalized graphene oxide followed by its modification with ۲-aminopyrimidine and activation with methane sulfonic acid. The nanocomposite was then characterized using XRD, FTIR, FESEM, EDAX, and TGA techniques. Xanthenes, were prepared from ۲-naphthol, dimedone and aldehydes via a one-pot multicomponent reaction in solvent-free media. The procedure offers several advantages including the no-solvent process, high yield, no by-products, short reaction time, and easy work-up. The nanocomposite can be recovered and reused for many times. The waste polyethylene can be also used for the preparation of nanocomposite, further benefiting the environment.

کلیدواژه ها:

polyethylene ، graphene oxide ، Xanthene ، Methane sulfonic acid ، ۲-Naphthol ، Dimedone