A simple and efficient catalytic arylmagnesiation of diarylacetylenes and aryl(alkyl)acetylenes is accomplished by NiCl2·6H2O at r.t. in the absence of stabilising ligands. The corresponding tetra-substituted alkenes can be obtained in good yields by subsequent treatment with different electrophiles.
F. Xue, J. Zhao and T. S. A. Hor, Chem. Commun., 2013, 49, 10121 DOI: 10.1039/C3CC45202F
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