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Issue 1, 2017
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Metal-free molecular iodine-catalyzed direct sulfonylation of pyrazolones with sodium sulfinates leading to sulfonated pyrazoles at room temperature

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Abstract

A simple and convenient molecular iodine-catalyzed direct sulfonylation of pyrazolones with sodium sulfinates has been developed in the presence of TBHP at room temperature. This methodology can allow for the synthesis of a series of valuable sulfonated pyrazoles in good to excellent yields simply using readily-available starting materials without requiring any metal or cryogenics.

Graphical abstract: Metal-free molecular iodine-catalyzed direct sulfonylation of pyrazolones with sodium sulfinates leading to sulfonated pyrazoles at room temperature

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Publication details

The article was received on 01 Sep 2016, accepted on 07 Oct 2016 and first published on 08 Oct 2016


Article type: Research Article
DOI: 10.1039/C6QO00403B
Citation: Org. Chem. Front., 2017,4, 26-30
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    Metal-free molecular iodine-catalyzed direct sulfonylation of pyrazolones with sodium sulfinates leading to sulfonated pyrazoles at room temperature

    W. Wei, H. Cui, D. Yang, X. Liu, C. He, S. Dai and H. Wang, Org. Chem. Front., 2017, 4, 26
    DOI: 10.1039/C6QO00403B

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