Migratory insertion of monoborane into the uranium–carbon σ-bond of tricyclopentadienyl(alkyl)uranium(IV) complexes
Abstract
U(cp)3R (cp =η5-cyclopentadienyl, R = Me or Et) reacts in toluene solution at room temperature with a number of appropriately labile adducts L·BH3(L = BH3, tetrahydrofuran or Me2S) to give U(cp)3BH4via the non-isolable, but spectroscopically well identified, primary insertion product U(cp)3(H3BR); evidence of a corresponding, rather effective, insertion of the resulting BH2R unit into U–C bond is also apparent.