In organic chemistry, atoms other than carbon and hydrogen are generally referred to as heteroatoms. The most common heteroatoms are nitrogen, oxygen and sulfur. Now I present to you an article called Influence of the catalytic conditions on the selectivity of the Pd-catalyzed Heck arylation of acrolein derivatives, published in 2006-06-05, which mentions a compound: 172418-32-5, mainly applied to acrolein acetal condensed aryl halide Heck arylation palladium catalyst; carboxylic ester condensed arene preparation; unsaturated aldehyde condensed arene preparation, Reference of trans-Di-μ-acetatobis[2-[bis(2-methylphenyl)phosphino]benzyl]dipalladium.
The Heck arylation of acrolein with a variety of condensed aryl and heteroaryl halides is described. Depending on the substrate, ≤87% isolated yield to the expected aldehydes was achieved. When the reaction was run on acrolein di-Et acetal, the choice of catalytic system dramatically affected the selectivity of the reaction. The catalyst system based on Herrmann’s palladacycle complex gave mainly saturated esters, whereas Cacchi’s conditions led to the formation of α,β-unsaturated aldehydes.
The article 《Influence of the catalytic conditions on the selectivity of the Pd-catalyzed Heck arylation of acrolein derivatives》 also mentions many details about this compound(172418-32-5)Reference of trans-Di-μ-acetatobis[2-[bis(2-methylphenyl)phosphino]benzyl]dipalladium, you can pay attention to it, because details determine success or failure
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