Recommanded Product: Tris(3,5-bis(trifluoromethyl)phenyl)phosphine. Aromatic heterocyclic compounds can also be classified according to the number of heteroatoms contained in the heterocycle: single heteroatom, two heteroatoms, three heteroatoms and four heteroatoms. Compound: Tris(3,5-bis(trifluoromethyl)phenyl)phosphine, is researched, Molecular C24H9F18P, CAS is 175136-62-6, about Stability and Unimolecular Reactivity of Palladate(II) Complexes [LnPdR3]- (L=Phosphine, R=Organyl, n=0 and 1). Author is Kolter, Marlene; Koszinowski, Konrad.
The reduction of PdII precatalysts to catalytically active Pd0 species is a key step in many palladium-mediated cross-coupling reactions. Besides phosphines, the stoichiometrically used organometallic reagents can afford this reduction, but do so in a poorly understood way. To elucidate the mechanism of this reaction, we have treated solutions of Pd(OAc)2 and a phosphine ligand L in THF with RMgCl (R = Ph, Bn, Bu) as well as other organometallic reagents. Anal. of these model systems by electrospray-ionization mass spectrometry found palladate(II) complexes [LnPdR3]- (n = 0 and 1), thus pointing to the occurrence of transmetalation reactions. Upon gas-phase fragmentation, the [LnPdR3]- anions preferentially underwent a reductive elimination to yield Pd0 species. The sequence of the transmetalation and reductive elimination, thus, constitutes a feasible mechanism for the reduction of the Pd(OAc)2 precatalyst. Other species of interest observed include the PdIV complex [PdBn5]-, which did not fragment via a reductive elimination but lost BnH instead.
In some applications, this compound(175136-62-6)Recommanded Product: Tris(3,5-bis(trifluoromethyl)phenyl)phosphine is unique.If you want to know more details about this compound, you can contact with the author or consult more relevant literature.
Reference:
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