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Issue 38, 2016
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Mild access to planar-chiral ortho-condensed aromatic ferrocenes via gold(I)-catalyzed cycloisomerization of ortho-alkynylaryl ferrocenes

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Abstract

An efficient approach to (Rp) planar-chiral tri- and tetracyclic ortho-condensed aromatic ferrocenes was developed through the enantioselective cationic Au(I)-catalyzed cycloisomerization, in the presence of bidentate phosphine ligand (R)-DTBM-Segphos, from readily available ortho-alkynylaryl ferrocenes under very mild conditions (11 examples, up to 92% yield and 93% ee).

Graphical abstract: Mild access to planar-chiral ortho-condensed aromatic ferrocenes via gold(i)-catalyzed cycloisomerization of ortho-alkynylaryl ferrocenes

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Publication details

The article was received on 28 Mar 2016, accepted on 07 Apr 2016 and first published on 08 Apr 2016


Article type: Communication
DOI: 10.1039/C6CC02624A
Chem. Commun., 2016,52, 6419-6422

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    Mild access to planar-chiral ortho-condensed aromatic ferrocenes via gold(I)-catalyzed cycloisomerization of ortho-alkynylaryl ferrocenes

    A. Urbano, G. Hernández-Torres, A. M. del Hoyo, A. Martínez-Carrión and M. Carmen Carreño, Chem. Commun., 2016, 52, 6419
    DOI: 10.1039/C6CC02624A

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