Issue 19, 2017

Metal-free carbon as a catalyst for oxidative coupling: solvent-enhanced poly-coupling with regioselectivity

Abstract

Herein, heterogeneous, inexpensive, metal-free, and environmentally friendly graphene oxide (GO) was developed for the oxidative polycoupling of 2-naphthols in aqueous sodium hydroxide in the presence of air. This study demonstrates that GO can function as a heterogeneous catalyst, and solvent plays a vital role in the coupling. Upon changing the solvent from toluene to water, transformation of products from homocoupling to polycoupling materials occurs.

Graphical abstract: Metal-free carbon as a catalyst for oxidative coupling: solvent-enhanced poly-coupling with regioselectivity

Supplementary files

Article information

Article type
Communication
Submitted
22 Jul 2017
Accepted
31 Aug 2017
First published
06 Sep 2017

Green Chem., 2017,19, 4533-4537

Metal-free carbon as a catalyst for oxidative coupling: solvent-enhanced poly-coupling with regioselectivity

M. Shaikh, A. Sahu, A. Kiran Kumar, M. Sahu, Sunil. K. Singh and K. V. S. Ranganath, Green Chem., 2017, 19, 4533 DOI: 10.1039/C7GC02227A

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