Jump to main content
Jump to site search


Ultrafine hybrid Cu2O–Fe2O3 nanoparticles stabilized by hexaphenylbenzene-based supramolecular assemblies: a photocatalytic system for the Ullmann–Goldberg coupling reaction

Author affiliations

Abstract

Ultrafine hybrid Cu2O–Fe2O3 NPs have been prepared using the supramolecular assemblies of hexaphenylbenzene (HPB) derivative 3 as nanoreactors and stabilizers. The as-prepared hybrid Cu2O–Fe2O3 NPs serve as an efficient and recyclable photocatalytic system for carrying out C–N coupling between aryl halides and various amines (aliphatic, aromatic and N-heterocyclic) at room temperature in mixed aqueous media under visible light irradiation. Amazingly, Cu2O–Fe2O3 NPs also exhibited high efficiency in the reactions involving the synthesis of biologically important N-substituted carbazole derivatives. The work being presented in this article demonstrates the preparation of a ‘dip strip’ coated with the as-prepared catalytic system and utilization of this paper strip as a recyclable and portable heterocatalytic system for carrying out the Ullmann–Goldberg coupling.

Graphical abstract: Ultrafine hybrid Cu2O–Fe2O3 nanoparticles stabilized by hexaphenylbenzene-based supramolecular assemblies: a photocatalytic system for the Ullmann–Goldberg coupling reaction

Back to tab navigation

Supplementary files

Publication details

The article was received on 10 Aug 2018, accepted on 22 Oct 2018 and first published on 22 Oct 2018


Article type: Paper
DOI: 10.1039/C8GC02527D
Citation: Green Chem., 2018, Advance Article
  •   Request permissions

    Ultrafine hybrid Cu2O–Fe2O3 nanoparticles stabilized by hexaphenylbenzene-based supramolecular assemblies: a photocatalytic system for the Ullmann–Goldberg coupling reaction

    G. Singh, M. Kumar and V. Bhalla, Green Chem., 2018, Advance Article , DOI: 10.1039/C8GC02527D

Search articles by author

Spotlight

Advertisements