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Issue 4, 2015
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Direct and metal-free arylsulfonylation of alkynes with sulfonylhydrazides for the construction of 3-sulfonated coumarins

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Abstract

A novel and metal-free procedure has been developed for the construction of 3-sulfonated coumarins via the direct difunctionalization of alkynoates with sulfonylhydrazides. The present protocol, which simply utilizes TBAI as the catalyst and TBHP as the oxidant, provides a convenient and highly efficient approach to construct a series of sulfonated coumarins with high regioselectivity and good functional group tolerance.

Graphical abstract: Direct and metal-free arylsulfonylation of alkynes with sulfonylhydrazides for the construction of 3-sulfonated coumarins

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Publication details

The article was received on 14 Oct 2014, accepted on 07 Nov 2014 and first published on 07 Nov 2014


Article type: Communication
DOI: 10.1039/C4CC08117J
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Chem. Commun., 2015,51, 768-771

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    Direct and metal-free arylsulfonylation of alkynes with sulfonylhydrazides for the construction of 3-sulfonated coumarins

    W. Wei, J. Wen, D. Yang, M. Guo, Y. Wang, J. You and H. Wang, Chem. Commun., 2015, 51, 768
    DOI: 10.1039/C4CC08117J

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