Issue 107, 2015

Efficient synthesis of xanthene derivatives using carboxyl functionalized graphene quantum dots as an acidic nano-catalyst under microwave irradiation

Abstract

Carboxyl functionalized graphene quantum dots (CGQDs) were applied as a highly efficient and green acidic catalyst for the coupling reaction of 2-naphthole and benzaldehyde derivatives for the preparation of 14H-dibenzo xanthene derivatives, under solvent-free microwave irradiation conditions. The structures of the 14H-dibenzo xanthene derivatives were confirmed by FT-IR, 1H-NMR and 13C-NMR spectroscopic techniques. The structure of catalyst was also confirmed by FT-IR, XRD, TEM and PL techniques. In order to demonstrate the positive impact of the CGQDs catalyst, the reaction times and yields of the products were compared with similar products which have been reported previously. 14H-Dibenzo xanthene derivatives were synthesized in a simple procedure with good to excellent yields.

Graphical abstract: Efficient synthesis of xanthene derivatives using carboxyl functionalized graphene quantum dots as an acidic nano-catalyst under microwave irradiation

Supplementary files

Article information

Article type
Paper
Submitted
23 Sep 2015
Accepted
05 Oct 2015
First published
08 Oct 2015

RSC Adv., 2015,5, 88202-88208

Author version available

Efficient synthesis of xanthene derivatives using carboxyl functionalized graphene quantum dots as an acidic nano-catalyst under microwave irradiation

A. Shomali, H. Valizadeh, A. Banan and R. Mohammad-Rezaei, RSC Adv., 2015, 5, 88202 DOI: 10.1039/C5RA19645K

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