derivatives (3e–3h) were pre‐ pared. Followed by hydrolysis, the reaction of 3a–3c with PCl3 successfully led to the formation of cor‐ responding metastable saturated heteroatom‐substituted secondary phosphine oxides (HASPO 4a–4c), a tautomer of the saturated heteroatom‐substituted phosphinous acid (HAPA). Whereas ambient‐stable diamine‐coordinated palladium complexes were obtained, HAPA‐coordinated palladium
制备了一系列的
环己烷-1,2-二胺(3a – 3d)和苯1,2 –二胺衍
生物(3e – 3h)。
水解后,3a - 3c与PCl 3的反应成功地导致形成相应的亚稳态饱和杂原子取代的次膦氧化物(HA
SPO 4a - 4c),它是饱和杂原子取代的
次膦酸(HAPA)的互变异构体。 。尽管获得了环境稳定的二胺配位的
钯配合物,但HAPA配位的
钯配合物未能成功合成。HA
SPO 4c,Pd(OAc)的分子结构2(3a)中, PDBR 2(3B)和
钯(OAC)2(3c)中和物[Cu(NO 3)(3D)+ ] [NO 3 - ],通过单晶X射线衍射法测定。以二胺3a为辅助
配体的
芳烃溴化物和苯
硼酸原位Suzuki-Miyaura交叉偶联反应的催化结果表明,在60°C时最佳的反应条件是2 mmol% 3a /3.0 mmol KOH / 1.0 mL的组合1 ,4-
二恶烷/ 1 mmol%Pd(OAc) 2。此外