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Issue 21, 2017
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Photocatalytic coupling of amines to imidazoles using a Mo–ZnIn2S4 catalyst

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Abstract

Substituted imidazoles are traditionally synthesized by co-condensation of multiple feedstocks. Herein, we report a new route for the synthesis of substituted imidazoles via photocyclization of readily available amines at room temperature. The reaction is achieved by the visible-light-induced C–C/C–N bond coupling and subsequent dehydrogenation reaction over Mo–ZnIn2S4 as a heterogeneous photocatalyst. A wide range of amines were converted into the corresponding tri- and tetra-substituted imidazoles with up to 96% total yields. The simplicity, high efficiency and mild condition merits of this new reaction will enable it to be useful in synthetic transformations.

Graphical abstract: Photocatalytic coupling of amines to imidazoles using a Mo–ZnIn2S4 catalyst

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Supplementary files

Article information


Submitted
13 Jun 2017
Accepted
11 Sep 2017
First published
22 Sep 2017

Green Chem., 2017,19, 5172-5177
Article type
Paper

Photocatalytic coupling of amines to imidazoles using a Mo–ZnIn2S4 catalyst

M. Wang, L. Li, J. Lu, N. Luo, X. Zhang and F. Wang, Green Chem., 2017, 19, 5172
DOI: 10.1039/C7GC01728F

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