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T3P® mediated domino C(sp2)–H sulfenylation/annulation of enaminones and methylsulfinyls for the synthesis of chromone thioether derivatives

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Abstract

A new regioselective method for the synthesis of 3-(methylthio)-4H-chromen-4-one and 3-(phenylthio)-4H-chromen-4-one derivatives has been developed. The reaction between o-hydroxy-phenyl-functionalized enaminones and methylsulfinyl derivatives using T3P® gave good yields of chromone thioether derivatives. The reaction proceeds via domino chromone ring construction and C(sp2)–H bond sulfenylation under transition-metal-free conditions.

Graphical abstract: T3P® mediated domino C(sp2)–H sulfenylation/annulation of enaminones and methylsulfinyls for the synthesis of chromone thioether derivatives

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Publication details

The article was received on 01 Nov 2018, accepted on 17 Dec 2018 and first published on 18 Dec 2018


Article type: Paper
DOI: 10.1039/C8NJ05554H
Citation: New J. Chem., 2019, Advance Article
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    T3P® mediated domino C(sp2)–H sulfenylation/annulation of enaminones and methylsulfinyls for the synthesis of chromone thioether derivatives

    C. Balakrishna, R. Gudipati, V. Kandula, S. Yennam, P. Uma Devi and M. Behera, New J. Chem., 2019, Advance Article , DOI: 10.1039/C8NJ05554H

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