Reaction of Ru(OAc)2(MeO-Biphep) (MeO-Biphep = 6,6‘-dimethoxybiphenyl-2,2‘-diylbis(diarylphosphine)) with 2 equiv of HBF4 in CH2Cl2 cleaves the MeO-Biphep. Products contain the exotic chelate ligand
(aryl)2POB(OH)F2 (aryl = phenyl, p-tolyl, 3,5-di-tert-butylphenyl) together with an (aryl)2P−η6-arene, 8e
donor chelate. The reaction involves a fluorophosphine
intermediate.
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