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Transition-metal-free, visible-light induced cyclization of arylsulfonyl chlorides with o-azidoarylalkynes: a regiospecific route to unsymmetrical 2,3-disubstituted indoles

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Abstract

A visible-light-catalyzed synthesis of unsymmetrical 2,3-diaryl-substituted indoles from arylsulfonyl chlorides and o-azidoarylalkynes at room temperature has been discovered. This transformation exhibits excellent substrate scope and functional group tolerance. The use of inexpensive eosin Y as the catalyst with easy operation makes this protocol very practical.

Graphical abstract: Transition-metal-free, visible-light induced cyclization of arylsulfonyl chlorides with o-azidoarylalkynes: a regiospecific route to unsymmetrical 2,3-disubstituted indoles

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Publication details

The article was received on 29 Dec 2016, accepted on 22 Feb 2017, published on 06 Mar 2017 and first published online on 06 Mar 2017


Article type: Communication
DOI: 10.1039/C6CC10305G
Citation: Chem. Commun., 2017, Advance Article
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    Transition-metal-free, visible-light induced cyclization of arylsulfonyl chlorides with o-azidoarylalkynes: a regiospecific route to unsymmetrical 2,3-disubstituted indoles

    L. Gu, C. Jin, W. Wang, Y. He, G. Yang and G. Li, Chem. Commun., 2017, Advance Article , DOI: 10.1039/C6CC10305G

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