The synthesis and crystal structures of halogenated tolans p-X–C<sub>6</sub>H<sub>4</sub>–CC–C<sub>6</sub>F<sub>5</sub>and p-X–C<sub>6</sub>F<sub>4</sub>–CC–C<sub>6</sub>H<sub>5</sub>(X = F, Cl, Br, I)
作者:Jonathan C. Collings、Jacquelyn M. Burke、Philip S. Smith、Andrei S. Batsanov、Judith A. K. Howard、Todd B. Marder
DOI:10.1039/b411191e
日期:——
A series of halogenated, partially fluorinated tolans of general formula p-X-C6H4-C[triple bond]C-C6F5[X=I (1), Br (2), Cl (3), F (4)] and p-X-C6F4-C[triple bond]C-C6H5[X=I (5), Br (6)] have been prepared via palladium-catalysed Sonogashira cross-coupling, or for X=Cl (7), by nucleophilic aromatic substitution reactions. The single-crystal X-ray structures of 1-3 and 5-6 have been determined. The structures