The first example of PdII -catalyzed γ-C(sp3 )-H functionalization of aliphatic and benzoheteroaryl aldehydes has been developed using a transient ligand and an external ligand, concurrently. A wide array of γ-arylated aldehydes were readily accessed without preinstalling internal directing groups. The catalytic mechanism was studied by performing deuterium-labelling experiments, which indicated that
同时使用瞬态
配体和外部
配体开发了PdII催化的脂肪族和苯并杂芳基醛的γ-C(sp3)-H官能化的第一个例子。无需预先安装内部导向基团即可轻松获得各种各样的γ-芳基化醛。通过
氘标记实验研究了其催化机理,表明γ-C(sp3)-H键的裂解是反应过程中的限速步骤。该反应可以以克为单位进行,并且还证明了其在具有蓝移的机械变色特性的新的机械荧光变色材料的合成中的潜在应用。