Abstract A series of novel ruthenium(II), palladium(II) and rhodium(I) complexes bearing N-heterocyclic carbene ligand functionalized by an alkyne-protected functional group ( C C SiMe3) were synthesized by transmetalation from the silver-NHC intermediate or by deprotonation of the azolium salt using an external base. The complexes were fully characterized and X-ray diffraction was used for the structure
摘要通过
银-NHC中间体或通过NHC
银的过渡
金属化合成了一系列带有由
炔烃保护的官能团(CC SiMe3)官能化的N-杂环卡宾
配体的新型
钌(II),
钯(II)和
铑(I)配合物。使用外部碱使偶氮盐去质子化。对该配合物进行了充分表征,并使用X射线衍射确定了结构。通过合成羰基
铑配合物评估了NHC
配体的给体性质。已经研究了官能团的反应性:炔在
钌和
铑物种上的脱保护得到不稳定的产物,而
钯化合物的脱保护是定量的。