Quality Control of trans-Di-μ-acetatobis[2-[bis(2-methylphenyl)phosphino]benzyl]dipalladium. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: trans-Di-μ-acetatobis[2-[bis(2-methylphenyl)phosphino]benzyl]dipalladium, is researched, Molecular C46H46O4P2Pd2, CAS is 172418-32-5, about In situ formation of palladium(0) from a P,C-palladacycle. Author is d’Orlye, Fanny; Jutand, Anny.
In DMF at 80°, a Pd0 complex is generated in situ from the dimeric P,C-palladacycle I in the absence of any reducing agents, presumably via a reductive elimination. The Pd0 complex formed in an endergonic equilibrium has been trapped and stabilized by an addnl. P(o-Tol)3 and has been detected in cyclic voltammetry by its oxidation peak. Its formation is favored by acetate anions (often used as base in Heck reactions) via the formation of a monomeric anionic P,C-palladacycle ligated by acetate ions. As postulated, P,C-palladacycles are a reservoir of monophosphine-Pd0 complexes active in oxidative additions with aryl halides.
《In situ formation of palladium(0) from a P,C-palladacycle》 provides a strategy for the preparation of materials with excellent comprehensive properties, which is conducive to broaden the application field of this compound(trans-Di-μ-acetatobis[2-[bis(2-methylphenyl)phosphino]benzyl]dipalladium)Quality Control of trans-Di-μ-acetatobis[2-[bis(2-methylphenyl)phosphino]benzyl]dipalladium.
Reference:
Phosphine ligand,
Chiral phosphine ligands in asymmetric synthesis. Molecular structure and absolute configuration of (1,5-cyclooctadiene)-(2S,3S)-2,3-bis(diphenylphosphino)butanerhodium(I) perchlorate tetrahydrofuran solvate