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Heterogenization of Amine-Functionalized Ionic Liquid Using Graphene Oxide as Support Material: A Highly Efficient Catalyst for the Synthesis of 3-Substituted Indoles via Yonemitsu-Type Reaction

Abstract

In the present study, heterogenization of amine-functionalized ionic liquid was developed via covalent immobilization of 2-chloroethylamine on the imidazole modified graphene oxide (GO) sheets. The prepared material was characterized by various physicochemical techniques such as, fourier transform infrared spectroscopy (FT-IR), powder X-ray diffraction (XRD), thermogravimetric analysis (TGA), transmission electron microscopy (TEM), scanning electron microscopy (SEM) and energy dispersive X-ray (EDX) spectroscopy. The prepared material was employed as an efficient heterogenous catalyst for the synthesis of 3-substituted indoles via Yonemitsu-type reaction. The catalyst could be easily separated from the reaction mixture through centrifugation and could be reused for seven consecutive cycles without any appreciable loss in its catalytic activity.

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Publication details

The article was received on 11 Sep 2017, accepted on 02 Nov 2017 and first published on 07 Nov 2017


Article type: Paper
DOI: 10.1039/C7NJ03450D
Citation: New J. Chem., 2017, Accepted Manuscript
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    Heterogenization of Amine-Functionalized Ionic Liquid Using Graphene Oxide as Support Material: A Highly Efficient Catalyst for the Synthesis of 3-Substituted Indoles via Yonemitsu-Type Reaction

    C. Garkoti, J. Shabir, P. Gupta, M. Sharma and S. Mozumdar, New J. Chem., 2017, Accepted Manuscript , DOI: 10.1039/C7NJ03450D

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