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Issue 50, 2013
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Rapid Sonogashira cross-coupling of iodoferrocenes and the unexpected cyclo-oligomerization of 4-ethynylphenylthioacetate

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Abstract

A systematic study into the Sonogashira cross-coupling of 1,1′-diiodoferrocene (fcI2) confirms that the Pd(0)–P(tBu)3 system provides a remarkable rate increase over Pd(0)–(PPh3)2. Attempts to couple 4-ethynylphenylthioacetate (2) with fcI2 instead produced a novel cyclic trimer of the former, from syn addition of S–Ac across C[triple bond, length as m-dash]C.

Graphical abstract: Rapid Sonogashira cross-coupling of iodoferrocenes and the unexpected cyclo-oligomerization of 4-ethynylphenylthioacetate

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Publication details

The article was received on 26 Apr 2013, accepted on 13 May 2013 and first published on 14 May 2013


Article type: Communication
DOI: 10.1039/C3CC43116A
Citation: Chem. Commun., 2013,49, 5663-5665
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    Rapid Sonogashira cross-coupling of iodoferrocenes and the unexpected cyclo-oligomerization of 4-ethynylphenylthioacetate

    M. S. Inkpen, A. J. P. White, T. Albrecht and N. J. Long, Chem. Commun., 2013, 49, 5663
    DOI: 10.1039/C3CC43116A

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