Group 9 and 10 Metal Complexes of an Ylide-Substituted Phosphine: Coordination versus Cyclometalation and Oxidative Addition.

ABSTRACT: Ylide-substituted phosphines (YPhos) have been shown to be excellent ligands for several transition metal catalyzed reactions. Investigations of the coordination behavior of the YPhos ligand Y_SPPh₂ (1) [with Y_S = (Ph₃P)(SO₂Tol)C] toward group 9 and 10 metals revealed a surprisingly diverse coordination chemistry of the ligand. With Ni(CO)₄, the formation of a di- as well as tricarbonyl complex is observed depending on the reaction conditions. In [( κP,η ² -benzene-1)Ni(CO)₂] the phosphine ligand also coordinates via a phosphonium bound phenyl group to the metal leading to a unique nickel η ² -arene interaction, which can be viewed as an intermediate state toward P-C bond activation. Full clea

SUBMITTER: Scherpf T 

PROVIDER: S-EPMC6588272 | biostudies-literature | 2019 Jun

REPOSITORIES: biostudies-literature