The Quest for Double Vicinal C–H Bond Activation on the (η
5:η
5-Fulvalene)diiridium Platform: Syntheses and Structures of (η
5:η
5-Fulvalene)Ir2(ortho-μ-C6H4)(CO)2 (Ir–Ir) and Related Complexes
作者:Judith Baumgartner、Robert Bergman、Bernd Kayser、Theodore Klupinski、Yong Park、K. Vollhardt、Michael West、Bolin Zhu
DOI:10.1055/s-0037-1611736
日期:2019.6
X-ray analyses. Efforts to realize C–H bond activations with C6H12 generally failed or fared very poorly, with the exception of the tert-butylFv system, which enabled single, but not further, insertion to give (2,2′,3,3′-tetra-tert-butylFv)[Ir(CO)(Cy)(H)][Ir(CO)2] in 34% yield. To explore the relevant chemistry of phenyl- and alkyliridium species attached to Fv, several such derivatives were made by independent
抽象的 富富烯二铱平台受到了仔细检查,其潜在影响C 6 H 6和C 6 H 12的双邻位C–H活化。为了这个目的,Fv的一种改进的制备物[Ir(CO)2 ] 2被开发,新的复合物Fvir,是以(CO)的合成2的Ir(CO)(η 2 -C 6 ˚F 6),FV物[Ir( CO)(η 2 -C 6 ˚F 6)] 2,FV的[Ir(CH 2 = CH 2)2 ] 2(X射线),FV的[Ir(PME 3)(H)2 ] 2(X射线),和(2,2',3,3'-四叔丁基Fv)[Ir(CO)2 ] 2得以完成。当在C 6 H 6中进行辐照时,这些分子在金属的双金属化过程中成功地发生了不同程度的变化,并且最适合(2,2',3,3'-四叔丁基Fv)[Ir(CO)2 ] 2。芳环使人产生结扎的Ir 2(邻- μ -C 6 ħ 4)(CO)2(铱-铱)部分,除了其前体单(苯基氢化铱)构造。Fv(或2,2',3,3