Macrocyclic Metal Complexes Bearing Rigid Polyaromatic Ligands: Synthesis and Catalytic Activity
作者:Koji Yamamoto、Kazuki Higuchi、Masahiro Ogawa、Hiromitsu Sogawa、Shigeki Kuwata、Yoshihiro Hayashi、Susumu Kawauchi、Toshikazu Takata
DOI:10.1002/asia.201901561
日期:2020.2.3
We synthesised palladium and platinum complexes possessing cyclic and acyclic pincer-type polyaromatic ligands and investigated their structural effect on the catalysis. The pincer-type bis(6-arylpyridin-2-yl)benzene skeleton was constructed via Kröhnke pyridine synthesis under transition metal-free conditions on gram-scale quantity. Ligand structure significantly influenced catalytic activity toward
我们合成了具有环状和无环钳型聚芳族
配体的
钯和
铂配合物,并研究了其对催化作用的结构。在无过渡
金属的条件下,通过克伦克
吡啶合成,以克级量构建了钳型双(6-芳基
吡啶-2-基)苯骨架。尽管
配体不依赖于这些配合物的构象和电子性质,但
配体结构显着影响了其对
铂催化的
二苯基乙炔氢化
硅烷化的催化活性。