A one-pot procedure to synthesise aryldifluoroboranes, ArBF2, from bench-stable arylsilanes is presented. These ArBF2 react conveniently with aryllithium reagents to form unsymmetrical ArAr′BF and BArAr′Ar′′ in high yield. Examples of all three classes of borane have been characterised crystallographically, allowing for elucidation of geometric and crystal packing trends in crystalline ArBF2.
提出了一种从台式稳定的芳基
硅烷合成芳基二
氟硼烷 ArBF2 的一锅法。这些 ArBF2 可方便地与芳基
锂试剂反应,以高产率形成不对称的 ArAr′BF 和 BArAr′Ar′′。所有三类
硼烷的例子都已通过晶体学表征,从而可以阐明晶体 ArBF2 中的几何和晶体填充趋势。