Boosting homogeneous chemoselective hydrogenation of olefins mediated by a bis(silylenyl)terphenyl-nickel(0) pre-catalyst.

ABSTRACT: The isolable chelating bis(N-heterocyclic silylenyl)-substituted terphenyl ligand [Si^II(Terp)Si^II] as well as its bis(phosphine) analogue [P^III(Terp)P^III] have been synthesised and fully characterised. Their reaction with Ni(cod)₂ (cod = cycloocta-1,5-diene) affords the corresponding 16 VE nickel(0) complexes with an intramolecular η ²-arene coordination of Ni, [E(Terp)E]Ni(η ²-arene) (E = P^III, Si^II; arene = phenylene spacer). Due to a strong cooperativity of the Si and Ni sites in H₂ activation and H atom transfer, [Si^II(Terp)Si^II]Ni(η ²-arene) mediates very effectively and chemoselectively the homogeneously catalysed hydrogen

SUBMITTER: Lucke MP 

PROVIDER: S-EPMC8179395 | biostudies-literature | 2021 Jan

REPOSITORIES: biostudies-literature