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Gold(I)- and rhodium(III)-catalyzed formal regiodivergent C–H alkynylation of 1-arylpyrazolones

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Abstract

Formal regiodivergent C–H alkynylation of 1-aryl-5-pyrazolones has been realized under the catalysis of Rh(III) and Au(I) complexes by using a hypervalent iodine reagent as the alkyne source. Mechanistic studies indicate that the regioselectivity is ascribed to not only the choice of the catalyst but also the nature of the substrate. The substrate scope and functional group compatibility have been fully examined.

Graphical abstract: Gold(i)- and rhodium(iii)-catalyzed formal regiodivergent C–H alkynylation of 1-arylpyrazolones

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Publication details

The article was received on 08 Mar 2018, accepted on 29 Mar 2018 and first published on 04 Apr 2018


Article type: Communication
DOI: 10.1039/C8OB00585K
Citation: Org. Biomol. Chem., 2018, Advance Article
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    Gold(I)- and rhodium(III)-catalyzed formal regiodivergent C–H alkynylation of 1-arylpyrazolones

    X. Wang, X. Li, Y. Zhang and L. Xia, Org. Biomol. Chem., 2018, Advance Article , DOI: 10.1039/C8OB00585K

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