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
一系列通式为pX-C6H4-C [三键] C-C6F5 [X = I(1),Br(2),Cl(3),F(4)]和pX-C6F4的卤代,部分氟化的环氧基-C [三键] C-C6H5 [X = I(5),Br(6)]是通过钯催化的Sonogashira交叉偶联制备的,或者对于X = Cl(7),是通过亲核芳族取代反应制备的。已经确定了1-3和5-6的单晶X射线结构。结构表明分子堆积的特征是芳烃-全氟芳烃相互作用(3)或卤素-卤素相互作用(同构1和2),或都不存在(同构5和6)。的结构表示化合物的第一个完全确定的晶体结构,该化合物包含除氟以外的卤原子,其中存在芳烃-全氟芳烃相互作用。