A new method of ortho-fluorination for selectively fluorinating a benzoic acid or derivative compound where an aryl C—H bond is directly replaced by an aryl C—F bond is provided. The method comprises reacting a compound having the formula:
wherein X is at least one substitution group attached with a benzene ring and Ar is an aromatic substitution group comprising at least one fluorine atom,
and a mixture comprising a palladium (II) catalyst and a fluorinating reagent to form at least one of the ortho-fluorinated compounds having the formulae
with good yield and selectivity.
提供了一种新的正
氟化方法,用于选择性
氟化
苯甲酸或衍
生物化合物,其中芳基C—H键直接被芳基C—F键取代。该方法包括将具有以下结构的化合物与含有至少一种与
苯环连接的取代基X和至少一种含有至少一个
氟原子的芳基取代基Ar的混合物反应,其中X是至少一个取代基,Ar是至少含有一个
氟原子的芳基取代基,以及一种
钯(II)
催化剂和
氟化试剂的混合物,形成至少一种具有良好产率和选择性的正
氟化化合物。