Proton-induced reactivities of ruthenium azido complexes: The first example of boron-carbon bond formation by methylene insertion into a B-H bond

摘要

Whereas the reaction of Tp(PhCN)(PPh_3)Ru-N_3 {Tp = HB(pz)_3, pz = pyrazolyl} with CH_3I in CH _2Cl_2 led to the cationic ruthenium methyleneimine complex [Tp(PPh_3)(PhCN)Ru(NHCH_2)]I, the analogous reaction with HCl gave rise to the ruthenium chloride complex containing a methyl tris(pyrazolyl)borate ligand ~(Me)Tp(PPh_3)(PhCN)RuCl, as a result of the highly unusual methylene insertion into a B-H bond of the Tp ligand.