Recommanded Product: trans-Di-μ-acetatobis[2-[bis(2-methylphenyl)phosphino]benzyl]dipalladium. The reaction of aromatic heterocyclic molecules with protons is called protonation. Aromatic heterocycles are more basic than benzene due to the participation of heteroatoms. Compound: trans-Di-μ-acetatobis[2-[bis(2-methylphenyl)phosphino]benzyl]dipalladium, is researched, Molecular C46H46O4P2Pd2, CAS is 172418-32-5, about Cyclic α-amino acids by Pd-mediated cycloisomerization and coupling reactions. Author is Moller, Bjorg; Undheim, Kjell.
Stereoselective syntheses of cyclic α-amino acids are described. The α-carbon of the amino acid is incorporated into a five- or six-membered vicinal dimethylenecycloalkane or conjugated methylenecycloalkene. Palladium-catalysis was used for cycloisomerization of intermediate enynes and intramol. Heck type cyclizations of bromodienes. A stereoselective elimination from a homoallylic Pd-intermediate is described. Enantiomerically pure substrates for the cyclization reactions were available by stepwise alkylations of the chiral auxiliary (R)-2,5-dihydro-3,6-dimethoxy-2-isopropylpyrazine with bromoalkenes and bromoalkynes.
Although many compounds look similar to this compound(172418-32-5)Recommanded Product: trans-Di-μ-acetatobis[2-[bis(2-methylphenyl)phosphino]benzyl]dipalladium, numerous studies have shown that this compound(SMILES:CC1=C([P]2([Pd+2]3([CH2-]C4=C2C=CC=C4)[O-]/C(C)=O[Pd+2]5([O-]/C(C)=O3)[P](C6=C(C)C=CC=C6)(C7=C([CH2-]5)C=CC=C7)C8=C(C)C=CC=C8)C9=C(C)C=CC=C9)C=CC=C1), has unique advantages. If you want to know more about similar compounds, you can read my other articles.
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